What is a passage's main idea?

The central point the author wants the whole passage to communicate.

What is the standard order of operations?

Parentheses → exponents → multiplication and division from left to right → addition and subtraction from left to right.

What is electric current?

The rate at which electric charge flows.

What properties stay unchanged when a shape is rotated?

Its size, side lengths, angles, and handedness stay unchanged; only orientation changes.

What does abundant mean?

Plentiful; present in large amounts.

What is a prime number?

A whole number greater than 1 with exactly two positive factors: 1 and itself.

What is the nucleus's main role in a eukaryotic cell?

It stores most of the cell's DNA and helps control gene activity.

What does an internal-combustion engine do?

Converts fuel's chemical energy into mechanical motion through combustion.

How does a reflection affect a shape's orientation?

It reverses handedness, producing a mirror image.

What is a factor of a number?

A whole number that divides the number with no remainder.

What do mitochondria do?

They release usable energy from food molecules and make much of the cell's ATP.

What eye protection is standard when chips, sparks, or flying debris are possible?

Properly rated safety glasses or goggles suited to the hazard.

What is a translation of a shape?

A slide that changes position without rotating or reflecting the shape.

What is a supporting detail?

A fact, example, reason, or explanation that develops the main idea.

What is a multiple of a number?

A result of multiplying that number by an integer.

What is the cell membrane's main job?

It controls what enters and leaves the cell.

When force acts along the direction of motion, what is mechanical work?

Force times displacement: W=Fd.

What must be true of two boundaries that join exactly?

Their lengths and contours must match while facing in complementary directions.

What does concise mean?

Brief but clear; using no unnecessary words.

How do you convert a fraction to a decimal?

Divide the numerator by the denominator.

What is photosynthesis?

The process by which plants, algae, and some microbes use light energy to make sugars from carbon dioxide and water.

How should a tab-and-slot pair behave in a valid assembly?

The tab should fit the slot without leaving a gap or creating overlap.

How do you convert a decimal to a percent?

Multiply by 100 and add the percent sign.

What is cellular respiration?

A process that releases energy from food molecules, commonly using oxygen and producing carbon dioxide and water.

What does a piston do in a reciprocating engine?

Moves back and forth in the cylinder and transfers combustion force to the connecting rod.

Which edges determine an assembled object's outer silhouette?

Only edges that remain exposed after the pieces join.

What is an inference in reading?

A conclusion supported by passage evidence even when it is not stated directly.

How do you convert a percent to a decimal?

Divide by 100, or move the decimal point two places left.

The molecule that stores hereditary information in living organisms.

What fastener is a Phillips screwdriver designed to turn?

A screw with a cross-shaped recess.

What usually happens to two edges joined along a shared boundary?

They become internal to the assembly rather than part of the outside outline.

What does diligent mean?

Careful and persistent in one's work.

What is the reciprocal of a nonzero number?

The number that gives 1 when multiplied by the original number; for a/b, it is b/a.

A segment of DNA that contributes to a functional product or inherited trait.

Why does overlap eliminate a proposed piece arrangement?

Solid pieces cannot occupy the same area in a valid assembly.

What makes two fractions equivalent?

They represent the same value because the numerator and denominator were multiplied or divided by the same nonzero number.

Electric potential difference: energy transferred per unit charge.

What scale rule applies when comparing pieces meant to join?

They must be compared at the same scale; rotation does not resize a piece.

What is an author's purpose?

The main reason for writing, such as to inform, explain, persuade, or entertain.

What is the main job of red blood cells?

Carry oxygen, mainly through hemoglobin.

What does a crankshaft do in a piston engine?

Converts the pistons' back-and-forth motion into rotation.

What is a useful anchor for mental assembly?

A distinctive corner, notch, tab, or long edge that can be tracked across rotations.

What does obsolete mean?

No longer used because something newer has replaced it.

ASVAB Flashcards: Verbal, Math, Science & Technical Review

Review 220 original ASVAB flashcards covering vocabulary, math formulas and setup patterns, science, electronics, auto and shop knowledge, mechanics, and bounded spatial concepts.

Umbhali Open Study Contributor

Mayelana naleli qoqo

ASVAB Flashcards: Verbal, Math, Science & Technical Review

Review the facts worth recalling before you spend time on full practice questions. These 220 English flashcards cover all four official ASVAB domains and map to the ten computerized subtests without copying the test.

What the cards practice

Verbal — 45 cards: produce meanings for 20 useful words, connect 10 roots or affixes with their meanings and examples, and recall 15 bounded reading concepts such as main idea, inference, tone, context clues, and passage structure.
Math — 55 cards: recall number rules, algebra relationships, geometry formulas, and ten common setup patterns for rates, interest, percent change, mixtures, work, probability, scale, and word-to-expression translation.
Science — 40 cards: connect life-science structures and processes, chemistry and physics terms, and Earth and space processes with their defining functions or principles.
Technical — 65 cards: connect electrical quantities, circuit behavior, vehicle and shop components, tools, simple machines, and physical principles with their functions, units, formulas, or relationships.
Spatial — 15 cards: recall bounded rotation, reflection, boundary-matching, silhouette, overlap, scale, landmark, symmetry, and viewpoint concepts that support spatial-relation practice.

The cards use useful forward mappings such as term → meaning, quantity → unit or formula, component → function, and principle → relationship. A few prompts ask for a setup from familiar wording. The deck does not mechanically reverse every fact, add answer-choice recognition, or turn every definition into several near-duplicates.

What needs separate practice

Flashcards are a poor substitute for passage-heavy Paragraph Comprehension drills, timed multi-step Arithmetic Reasoning problems, and full visual Assembling Objects items. Those need original passages or diagrams, realistic answer choices, and time pressure, so they are explicitly excluded here. The deck also excludes score tables, changing service cutoffs, advanced electronics design, diagnostic auto repair, hazardous procedures, and obscure trade trivia.

Learning order

The sequence makes repeated passes across verbal, math, science, technical, and spatial material. Foundations arrive before dependent knowledge: number operations before algebra and applied setups, cell and matter basics before larger systems, electrical quantities before circuit rules, and component names before mechanical relationships. Related directions and near-duplicates are separated by at least three unrelated cards where practical; the later technical tail keeps rotating among electronics, auto, and mechanics.

Scope and provenance

The official ASVAB subtests page defines the four domains and ten computerized subtests. Its administration note explains that Auto Information and Shop Information are separate on the computerized test but combined on the paper-and-pencil test and for the reported AS score. The official preparation guidance recommends a solid foundation in mathematics, English, science, and technical coursework.

The facts are common high-school and introductory technical knowledge. The prompts, answers, selection, and order were independently written and manually checked. No competitor cards or third-party media were used. The generated cover is original and contains no official marks.

The Common knowledge · CC0 1.0 label applies to the original wording, organization, metadata, and cover to the extent applicable rights exist. It does not claim ownership of facts or third-party names.

Source and compatibility review: August 31, 2026.

This is an independent, unofficial study deck. It is not affiliated with, endorsed by, or supplied with questions by the ASVAB Testing Program or the U.S. Department of Defense. No official questions, passages, answer choices, score tables, curriculum wording, or protected prep-book wording were copied.

Amakhadi akuleli qoqo

Ikhadi 1
Umbuzo
What is a passage's main idea?
Impendulo
The central point the author wants the whole passage to communicate.
Ikhadi 2
Umbuzo
What is the standard order of operations?
Impendulo
Parentheses → exponents → multiplication and division from left to right → addition and subtraction from left to right.
Ikhadi 3
Umbuzo
What is the basic structural and functional unit of life?
Impendulo
The cell.
Ikhadi 4
Umbuzo
What is electric current?
Impendulo
The rate at which electric charge flows.
Ikhadi 5
Umbuzo
What properties stay unchanged when a shape is rotated?
Impendulo
Its size, side lengths, angles, and handedness stay unchanged; only orientation changes.
Ikhadi 6
Umbuzo
What does abundant mean?
Impendulo
Plentiful; present in large amounts.
Ikhadi 7
Umbuzo
What is a prime number?
Impendulo
A whole number greater than 1 with exactly two positive factors: 1 and itself.
Ikhadi 8
Umbuzo
What is the nucleus's main role in a eukaryotic cell?
Impendulo
It stores most of the cell's DNA and helps control gene activity.
Ikhadi 9
Umbuzo
What does an internal-combustion engine do?
Impendulo
Converts fuel's chemical energy into mechanical motion through combustion.
Ikhadi 10
Umbuzo
How does a reflection affect a shape's orientation?
Impendulo
It reverses handedness, producing a mirror image.
Ikhadi 11
Umbuzo
What does the prefix pre- mean?
Impendulo
Before, as in preview.
Ikhadi 12
Umbuzo
What is a factor of a number?
Impendulo
A whole number that divides the number with no remainder.
Ikhadi 13
Umbuzo
What do mitochondria do?
Impendulo
They release usable energy from food molecules and make much of the cell's ATP.
Ikhadi 14
Umbuzo
What eye protection is standard when chips, sparks, or flying debris are possible?
Impendulo
Properly rated safety glasses or goggles suited to the hazard.
Ikhadi 15
Umbuzo
What is a translation of a shape?
Impendulo
A slide that changes position without rotating or reflecting the shape.
Ikhadi 16
Umbuzo
What is a supporting detail?
Impendulo
A fact, example, reason, or explanation that develops the main idea.
Ikhadi 17
Umbuzo
What is a multiple of a number?
Impendulo
A result of multiplying that number by an integer.
Ikhadi 18
Umbuzo
What is the cell membrane's main job?
Impendulo
It controls what enters and leaves the cell.
Ikhadi 19
Umbuzo
When force acts along the direction of motion, what is mechanical work?
Impendulo
Force times displacement: $W=Fd$ .
Ikhadi 20
Umbuzo
What must be true of two boundaries that join exactly?
Impendulo
Their lengths and contours must match while facing in complementary directions.
Ikhadi 21
Umbuzo
What does concise mean?
Impendulo
Brief but clear; using no unnecessary words.
Ikhadi 22
Umbuzo
How do you convert a fraction to a decimal?
Impendulo
Divide the numerator by the denominator.
Ikhadi 23
Umbuzo
What is photosynthesis?
Impendulo
The process by which plants, algae, and some microbes use light energy to make sugars from carbon dioxide and water.
Ikhadi 24
Umbuzo
What is the SI unit of electric current?
Impendulo
The ampere, or amp.
Ikhadi 25
Umbuzo
How should a tab-and-slot pair behave in a valid assembly?
Impendulo
The tab should fit the slot without leaving a gap or creating overlap.
Ikhadi 26
Umbuzo
What does the suffix -less mean?
Impendulo
Without, as in careless.
Ikhadi 27
Umbuzo
How do you convert a decimal to a percent?
Impendulo
Multiply by 100 and add the percent sign.
Ikhadi 28
Umbuzo
What is cellular respiration?
Impendulo
A process that releases energy from food molecules, commonly using oxygen and producing carbon dioxide and water.
Ikhadi 29
Umbuzo
What does a piston do in a reciprocating engine?
Impendulo
Moves back and forth in the cylinder and transfers combustion force to the connecting rod.
Ikhadi 30
Umbuzo
Which edges determine an assembled object's outer silhouette?
Impendulo
Only edges that remain exposed after the pieces join.
Ikhadi 31
Umbuzo
What is an inference in reading?
Impendulo
A conclusion supported by passage evidence even when it is not stated directly.
Ikhadi 32
Umbuzo
How do you convert a percent to a decimal?
Impendulo
Divide by 100, or move the decimal point two places left.
Ikhadi 33
Umbuzo
What is DNA?
Impendulo
The molecule that stores hereditary information in living organisms.
Ikhadi 34
Umbuzo
What fastener is a Phillips screwdriver designed to turn?
Impendulo
A screw with a cross-shaped recess.
Ikhadi 35
Umbuzo
What usually happens to two edges joined along a shared boundary?
Impendulo
They become internal to the assembly rather than part of the outside outline.
Ikhadi 36
Umbuzo
What does diligent mean?
Impendulo
Careful and persistent in one's work.
Ikhadi 37
Umbuzo
What is the reciprocal of a nonzero number?
Impendulo
The number that gives 1 when multiplied by the original number; for $a/b$ , it is $b/a$ .
Ikhadi 38
Umbuzo
What is a gene?
Impendulo
A segment of DNA that contributes to a functional product or inherited trait.
Ikhadi 39
Umbuzo
What is mechanical power?
Impendulo
The rate of doing work: $P=W/t$ .
Ikhadi 40
Umbuzo
Why does overlap eliminate a proposed piece arrangement?
Impendulo
Solid pieces cannot occupy the same area in a valid assembly.
Ikhadi 41
Umbuzo
What does the root bio mean?
Impendulo
Life, as in biology.
Ikhadi 42
Umbuzo
What makes two fractions equivalent?
Impendulo
They represent the same value because the numerator and denominator were multiplied or divided by the same nonzero number.
Ikhadi 43
Umbuzo
What is an allele?
Impendulo
One version of a gene.
Ikhadi 44
Umbuzo
What is voltage?
Impendulo
Electric potential difference: energy transferred per unit charge.
Ikhadi 45
Umbuzo
What scale rule applies when comparing pieces meant to join?
Impendulo
They must be compared at the same scale; rotation does not resize a piece.
Ikhadi 46
Umbuzo
What is an author's purpose?
Impendulo
The main reason for writing, such as to inform, explain, persuade, or entertain.
Ikhadi 47
Umbuzo
What does a ratio compare?
Impendulo
Two quantities by division.
Ikhadi 48
Umbuzo
What is the main job of red blood cells?
Impendulo
Carry oxygen, mainly through hemoglobin.
Ikhadi 49
Umbuzo
What does a crankshaft do in a piston engine?
Impendulo
Converts the pistons' back-and-forth motion into rotation.
Ikhadi 50
Umbuzo
What is a useful anchor for mental assembly?
Impendulo
A distinctive corner, notch, tab, or long edge that can be tracked across rotations.
Ikhadi 51
Umbuzo
What does obsolete mean?
Impendulo
No longer used because something newer has replaced it.
Ikhadi 52
Umbuzo
What is a proportion?
Impendulo
An equation stating that two ratios are equal.
Ikhadi 53
Umbuzo
What is the main job of white blood cells?
Impendulo
Help defend the body against infection and other threats.
Ikhadi 54
Umbuzo
What fastener is a slotted screwdriver designed to turn?
Impendulo
A screw with one straight slot.
Ikhadi 55
Umbuzo
What should you track while mentally rotating a complex piece?
Impendulo
One distinctive landmark and its relationship to nearby edges.
Ikhadi 56
Umbuzo
What does the prefix anti- mean?
Impendulo
Against or opposed to, as in antifreeze.
Ikhadi 57
Umbuzo
How do you find the arithmetic mean?
Impendulo
Add all values and divide by the number of values.
Ikhadi 58
Umbuzo
What does a neuron do?
Impendulo
Receives and transmits information through electrical and chemical signals.
Ikhadi 59
Umbuzo
How is ideal mechanical advantage defined?
Impendulo
Ideal mechanical advantage is input distance divided by output distance. In a frictionless ideal machine, it also equals output force divided by input force.
Ikhadi 60
Umbuzo
How can symmetry help with a spatial-relation problem?
Impendulo
It reveals repeated or mirrored positions. Reflection reverses handedness, so a candidate must match the target's handedness.
Ikhadi 61
Umbuzo
How does a definition context clue help with an unfamiliar word?
Impendulo
The sentence directly explains the word's meaning nearby.
Ikhadi 62
Umbuzo
What is the median?
Impendulo
The middle value after the data are ordered, or the mean of the two middle values when the count is even.
Ikhadi 63
Umbuzo
What is homeostasis?
Impendulo
The maintenance of relatively stable internal conditions despite outside change.
Ikhadi 64
Umbuzo
What is the SI unit of voltage?
Impendulo
The volt.
Ikhadi 65
Umbuzo
Does viewing an object from another angle change the object itself?
Impendulo
No. The visible faces and edges change, but the object's dimensions and connections do not.
Ikhadi 66
Umbuzo
What does reluctant mean?
Impendulo
Unwilling or hesitant.
Ikhadi 67
Umbuzo
Why use a least common denominator when adding fractions?
Impendulo
It gives the fractions a shared unit size so their numerators can be combined.
Ikhadi 68
Umbuzo
What is an ecosystem?
Impendulo
A community of organisms interacting with each other and with their physical environment.
Ikhadi 69
Umbuzo
What does a camshaft control in a four-stroke engine?
Impendulo
The timing of intake and exhaust valve opening and closing.
Ikhadi 70
Umbuzo
How can a hidden edge be inferred in a simple assembly?
Impendulo
Continue the visible boundary consistently unless another piece blocks or joins it.
Ikhadi 71
Umbuzo
What does the root geo mean?
Impendulo
Earth, as in geology.
Ikhadi 72
Umbuzo
What is absolute value?
Impendulo
A number's distance from zero, so it is never negative.
Ikhadi 73
Umbuzo
What is natural selection?
Impendulo
Individuals with heritable traits suited to an environment tend to leave more offspring, so those traits become more common.
Ikhadi 74
Umbuzo
What is an open-end wrench mainly used for?
Impendulo
Turning nuts and bolt heads that can be reached from the side.
Ikhadi 75
Umbuzo
What quick checks can eliminate an impossible assembly?
Impendulo
Mismatched edge lengths, wrong corner counts, overlap, gaps, or an outer outline that cannot be formed.
Ikhadi 76
Umbuzo
What do contrast signals such as however or although tell a reader?
Impendulo
The next idea differs from or qualifies the previous idea.
Ikhadi 77
Umbuzo
What is a variable?
Impendulo
A symbol that represents an unknown or changeable value.
Ikhadi 78
Umbuzo
What is an atom?
Impendulo
The smallest unit of an element that retains that element's chemical identity.
Ikhadi 79
Umbuzo
What is a fulcrum?
Impendulo
The pivot point of a lever.
Ikhadi 80
Umbuzo
What does impartial mean?
Impendulo
Fair and not favoring one side.
Ikhadi 81
Umbuzo
What is a coefficient?
Impendulo
A number that multiplies a variable.
Ikhadi 82
Umbuzo
What is an element?
Impendulo
A pure substance made of atoms with the same number of protons.
Ikhadi 83
Umbuzo
What is electrical resistance?
Impendulo
Opposition to electric current.
Ikhadi 84
Umbuzo
What does the suffix -ology mean?
Impendulo
The study of, as in geology.
Ikhadi 85
Umbuzo
What is the distributive property?
Impendulo
Multiply the outside factor by every term inside: $a(b+c)=ab+ac$ .
Ikhadi 86
Umbuzo
What is a compound?
Impendulo
A substance made of two or more elements chemically bonded in fixed proportions.
Ikhadi 87
Umbuzo
What does a spark plug do in a gasoline engine?
Impendulo
Creates the spark that ignites the compressed air-fuel mixture.
Ikhadi 88
Umbuzo
What do cause-and-effect signals help a reader identify?
Impendulo
Why something happened and what resulted from it.
Ikhadi 89
Umbuzo
When can algebraic terms be combined?
Impendulo
When they are like terms with the same variable parts and exponents.
Ikhadi 90
Umbuzo
What defines a physical change?
Impendulo
The material changes form or state without becoming a different substance.
Ikhadi 91
Umbuzo
What is the main advantage of a socket wrench?
Impendulo
Its socket surrounds the fastener head, giving secure contact and efficient repeated turning.
Ikhadi 92
Umbuzo
What does feasible mean?
Impendulo
Possible and practical to do.
Ikhadi 93
Umbuzo
For a positive whole-number exponent, what does the exponent tell you?
Impendulo
How many times the base is used as a factor.
Ikhadi 94
Umbuzo
What defines a chemical change?
Impendulo
One or more substances become new substances with different chemical compositions.
Ikhadi 95
Umbuzo
Where is the fulcrum in a first-class lever?
Impendulo
Between the effort and the load.
Ikhadi 96
Umbuzo
What does the prefix inter- mean?
Impendulo
Between or among, as in interstate.
Ikhadi 97
Umbuzo
What is the product-of-powers rule for the same base?
Impendulo
Add the exponents: $a^m a^n=a^{m+n}$ .
Ikhadi 98
Umbuzo
What does conservation of mass mean in an ordinary chemical reaction?
Impendulo
Atoms are rearranged, but total mass stays constant in a closed system.
Ikhadi 99
Umbuzo
What is the SI unit of electrical resistance?
Impendulo
The ohm.
Ikhadi 100
Umbuzo
What is a pronoun's referent?
Impendulo
The noun or noun phrase that the pronoun stands for.
Ikhadi 101
Umbuzo
What does a negative exponent mean?
Impendulo
For nonzero $a$ , $a^{-n}=1/a^n$ .
Ikhadi 102
Umbuzo
What is density?
Impendulo
Mass per unit volume: $\rho=m/V$ .
Ikhadi 103
Umbuzo
What does a fuel injector do?
Impendulo
Meters and sprays fuel into the engine's air path or combustion chamber.
Ikhadi 104
Umbuzo
What does ambiguous mean?
Impendulo
Open to more than one interpretation; unclear.
Ikhadi 105
Umbuzo
What is a square root of a number?
Impendulo
A value that produces the number when multiplied by itself.
Ikhadi 106
Umbuzo
What relationship does Newton's second law express?
Impendulo
Net force equals mass times acceleration: $F=ma$ .
Ikhadi 107
Umbuzo
What is an adjustable wrench used for?
Impendulo
Turning different sizes of nuts or bolt heads with one movable jaw.
Ikhadi 108
Umbuzo
What does the root cred mean?
Impendulo
Believe or trust, as in credible.
Ikhadi 109
Umbuzo
What is the core rule for solving a linear equation?
Impendulo
Use inverse operations while performing the same operation on both sides.
Ikhadi 110
Umbuzo
How does velocity differ from speed?
Impendulo
Velocity includes direction; speed does not.
amakhadi angu-220
ASVAB Flashcards: Verbal, Math, Science & Technical Review
Funda leli qoqo mahhala
I-Nibomo iyavuleka ukuze uqale ukufunda.
Ikhadi 111
Umbuzo
Where is the load in a second-class lever?
Impendulo
Between the fulcrum and the effort.
Ikhadi 112
Umbuzo
How does a fact differ from an opinion?
Impendulo
A fact can be checked against evidence; an opinion expresses a judgment or belief.
Ikhadi 113
Umbuzo
What is the slope formula between two points?
Impendulo
$m=(y_2-y_1)/(x_2-x_1)$ , provided $x_2\ne x_1$ .
Ikhadi 114
Umbuzo
What is energy?
Impendulo
The capacity to do work or cause change.
Ikhadi 115
Umbuzo
What relationship does Ohm's law express?
Impendulo
Voltage equals current times resistance: $V=IR$ .
Ikhadi 116
Umbuzo
What does meticulous mean?
Impendulo
Very careful about small details.
Ikhadi 117
Umbuzo
What does $y=mx+b$ show?
Impendulo
A line with slope $m$ and vertical intercept $b$ .
Ikhadi 118
Umbuzo
What is conduction?
Impendulo
Heat transfer through direct particle contact, especially within or between solids.
Ikhadi 119
Umbuzo
What does a vehicle radiator do?
Impendulo
Transfers heat from engine coolant to the surrounding air.
Ikhadi 120
Umbuzo
What does scarce mean?
Impendulo
Limited in supply; hard to find.
Ikhadi 121
Umbuzo
When must an inequality sign reverse?
Impendulo
When both sides are multiplied or divided by a negative number.
Ikhadi 122
Umbuzo
What is convection?
Impendulo
Heat transfer by the bulk motion of a fluid such as air or water.
Ikhadi 123
Umbuzo
What are general-purpose pliers mainly used for?
Impendulo
Gripping, holding, and bending objects.
Ikhadi 124
Umbuzo
What does a compare-and-contrast structure show?
Impendulo
How two or more subjects are alike and different.
Ikhadi 125
Umbuzo
What is a solution to a system of two equations?
Impendulo
A value pair that makes both equations true.
Ikhadi 126
Umbuzo
What is thermal radiation?
Impendulo
Energy transfer by electromagnetic waves; it does not require matter.
Ikhadi 127
Umbuzo
Where is the effort in a third-class lever?
Impendulo
Between the fulcrum and the load.
Ikhadi 128
Umbuzo
What does resilient mean?
Impendulo
Able to recover or adapt after difficulty.
Ikhadi 129
Umbuzo
How do you factor out a greatest common factor?
Impendulo
Divide every term by the common factor and place that factor outside parentheses.
Ikhadi 130
Umbuzo
What is Earth's crust?
Impendulo
The planet's thin, solid outermost layer.
Ikhadi 131
Umbuzo
What is electrical power in a DC circuit?
Impendulo
Voltage times current: $P=VI$ .
Ikhadi 132
Umbuzo
What does versatile mean?
Impendulo
Able to serve several purposes or adapt to different tasks.
Ikhadi 133
Umbuzo
What is the quadratic formula for $ax^2+bx+c=0$ ?
Impendulo
$x=(-b\pm\sqrt{b^2-4ac})/(2a)$ .
Ikhadi 134
Umbuzo
What is Earth's mantle?
Impendulo
The thick layer of hot rock between the crust and core; it flows slowly over long times.
Ikhadi 135
Umbuzo
What does an engine thermostat regulate?
Impendulo
Coolant flow based on temperature so the engine warms up and avoids overheating.
Ikhadi 136
Umbuzo
What do sequence signals such as first, next, and finally show?
Impendulo
The order in which steps or events occur.
Ikhadi 137
Umbuzo
What is the perimeter of a rectangle?
Impendulo
$P=2l+2w$ .
Ikhadi 138
Umbuzo
What is Earth's core?
Impendulo
The iron-rich central region, with a liquid outer core and solid inner core.
Ikhadi 139
Umbuzo
What is a ball-peen hammer mainly used for?
Impendulo
Shaping metal and striking punches or rivets.
Ikhadi 140
Umbuzo
What does sporadic mean?
Impendulo
Occurring irregularly or only from time to time.
Ikhadi 141
Umbuzo
What is the area of a rectangle?
Impendulo
$A=lw$ .
Ikhadi 142
Umbuzo
What does the rock cycle describe?
Impendulo
How igneous, sedimentary, and metamorphic rocks change from one type to another.
Ikhadi 143
Umbuzo
What does a fixed pulley change in the ideal case?
Impendulo
The direction of the effort; its ideal mechanical advantage is 1.
Ikhadi 144
Umbuzo
What does frugal mean?
Impendulo
Careful about spending or using resources.
Ikhadi 145
Umbuzo
What is the area of a triangle?
Impendulo
$A=bh/2$ .
Ikhadi 146
Umbuzo
How does weather differ from climate?
Impendulo
Weather is short-term atmospheric conditions; climate is the long-term pattern for a region.
Ikhadi 147
Umbuzo
What is an electrical conductor?
Impendulo
A material that allows electric charge to move relatively easily.
Ikhadi 148
Umbuzo
What is tone in a passage?
Impendulo
The author's attitude toward the subject or audience.
Ikhadi 149
Umbuzo
What is the circumference of a circle?
Impendulo
$C=2\pi r$ or $C=\pi d$ .
Ikhadi 150
Umbuzo
What is evaporation in the water cycle?
Impendulo
Liquid water changing into water vapor.
Ikhadi 151
Umbuzo
What does an alternator do while a vehicle's engine runs?
Impendulo
Supplies electrical power and recharges the battery.
Ikhadi 152
Umbuzo
What does novice mean?
Impendulo
A beginner.
Ikhadi 153
Umbuzo
What is the area of a circle?
Impendulo
$A=\pi r^2$ .
Ikhadi 154
Umbuzo
What is condensation in the water cycle?
Impendulo
Water vapor cooling into liquid droplets.
Ikhadi 155
Umbuzo
What is a hacksaw mainly used to cut?
Impendulo
Metal and some plastics, using a fine-toothed blade.
Ikhadi 156
Umbuzo
What does the prefix trans- mean?
Impendulo
Across, through, or beyond, as in transport.
Ikhadi 157
Umbuzo
What relationship does the Pythagorean theorem give for a right triangle?
Impendulo
$a^2+b^2=c^2$ , where $c$ is the hypotenuse.
Ikhadi 158
Umbuzo
What is precipitation?
Impendulo
Water falling from clouds as rain, snow, sleet, or hail.
Ikhadi 159
Umbuzo
What is the ideal mechanical advantage of one movable pulley supported by two rope segments?
Impendulo
2; the load is shared by two supporting rope segments.
Ikhadi 160
Umbuzo
What is a summary?
Impendulo
A brief statement of the main idea and the most important supporting points.
Ikhadi 161
Umbuzo
What is the sum of a triangle's interior angles?
Impendulo
$180^\circ$ .
Ikhadi 162
Umbuzo
What does plate tectonics explain?
Impendulo
The movement of Earth's lithospheric plates and many earthquakes, volcanoes, and mountain ranges.
Ikhadi 163
Umbuzo
What is an electrical insulator?
Impendulo
A material that strongly resists the movement of electric charge.
Ikhadi 164
Umbuzo
What does verify mean?
Impendulo
Confirm that something is true or accurate.
Ikhadi 165
Umbuzo
What are complementary angles?
Impendulo
Two angles whose measures add to $90^\circ$ .
Ikhadi 166
Umbuzo
What primarily causes Earth's seasons?
Impendulo
Earth's axial tilt as it orbits the Sun.
Ikhadi 167
Umbuzo
What is a vehicle battery's main starting role?
Impendulo
Provides electrical energy to the starter motor and ignition or control systems.
Ikhadi 168
Umbuzo
What does plausible mean?
Impendulo
Reasonable or believable.
Ikhadi 169
Umbuzo
What are supplementary angles?
Impendulo
Two angles whose measures add to $180^\circ$ .
Ikhadi 170
Umbuzo
What causes the Moon's phases?
Impendulo
Our view of the Moon's sunlit half changes as the Moon orbits Earth.
Ikhadi 171
Umbuzo
What does a hand file do?
Impendulo
Removes small amounts of material to shape, deburr, or smooth a surface.
Ikhadi 172
Umbuzo
What is a word's connotation?
Impendulo
The feeling or association a word suggests beyond its literal meaning.
Ikhadi 173
Umbuzo
What is the area of a parallelogram?
Impendulo
$A=bh$ , using the perpendicular height.
Ikhadi 174
Umbuzo
What keeps planets in orbit around the Sun?
Impendulo
Gravity supplies the inward force that bends their motion into an orbit.
Ikhadi 175
Umbuzo
How do the speeds of two meshed gears compare?
Impendulo
The smaller gear turns faster; speed is inversely related to tooth count.
Ikhadi 176
Umbuzo
What does prudent mean?
Impendulo
Careful and sensible about future consequences.
Ikhadi 177
Umbuzo
What is the area of a trapezoid?
Impendulo
$A=(b_1+b_2)h/2$ .
Ikhadi 178
Umbuzo
How does current behave in a simple series circuit?
Impendulo
The same current passes through every component.
Ikhadi 179
Umbuzo
What does the prefix mis- mean?
Impendulo
Wrongly or badly, as in misjudge.
Ikhadi 180
Umbuzo
What is the volume of a rectangular prism?
Impendulo
$V=lwh$ .
Ikhadi 181
Umbuzo
What does a vehicle transmission do?
Impendulo
Changes the speed-and-torque relationship between the engine and the drive wheels.
Ikhadi 182
Umbuzo
What is a paraphrase?
Impendulo
A restatement of the same idea in different words without changing its meaning.
Ikhadi 183
Umbuzo
What is the volume of a cylinder?
Impendulo
$V=\pi r^2h$ .
Ikhadi 184
Umbuzo
What does a drill bit do?
Impendulo
Cuts a hole as it rotates; the bit type must match the material.
Ikhadi 185
Umbuzo
What does tangible mean?
Impendulo
Able to be touched; more broadly, real and definite.
Ikhadi 186
Umbuzo
What is the surface area of a rectangular prism?
Impendulo
$SA=2lw+2lh+2wh$ .
Ikhadi 187
Umbuzo
Which directions do two directly meshed external gears rotate?
Impendulo
Opposite directions.
Ikhadi 188
Umbuzo
What does candid mean?
Impendulo
Honest and direct.
Ikhadi 189
Umbuzo
How do corresponding lengths compare in similar figures?
Impendulo
They share one scale factor; corresponding angles stay equal.
Ikhadi 190
Umbuzo
How does voltage behave across branches of an ideal parallel circuit?
Impendulo
Each branch has the same voltage as the source.
Ikhadi 191
Umbuzo
What equation links distance, rate, and time?
Impendulo
$d=rt$ .
Ikhadi 192
Umbuzo
What does a differential let driven wheels do?
Impendulo
Rotate at different speeds while still receiving torque.
Ikhadi 193
Umbuzo
What is the simple-interest formula?
Impendulo
$I=Prt$ , where $P$ is principal, $r$ is the decimal annual rate, and $t$ is time in years.
Ikhadi 194
Umbuzo
What does a bench vise do?
Impendulo
Holds a workpiece firmly while it is cut, filed, drilled, or assembled.
Ikhadi 195
Umbuzo
How do you find a unit rate?
Impendulo
Divide to express the quantity per one unit.
Ikhadi 196
Umbuzo
How does an inclined plane trade force for distance?
Impendulo
It reduces the required input force by increasing the distance over which the force acts.
Ikhadi 197
Umbuzo
How do you calculate signed percent change?
Impendulo
$\text{percent change}=(\text{new}-\text{original})/\text{original}\times100\%$ , when the original is nonzero. A positive result is an increase; a negative result is a decrease.
Ikhadi 198
Umbuzo
What is an open circuit?
Impendulo
A broken or incomplete path in which current cannot flow through the intended loop.
Ikhadi 199
Umbuzo
What two equations set up a two-part mixture problem?
Impendulo
Use both $a_1+a_2=A$ and $c_1a_1+c_2a_2=c_tA$ . The $a$ values are amounts in compatible units, and the $c$ values are decimal concentrations.
Ikhadi 200
Umbuzo
How does a disc brake slow a wheel?
Impendulo
A caliper presses pads against a rotating disc, creating friction.
Ikhadi 201
Umbuzo
How do combined work rates relate?
Impendulo
Add the individual rates: $1/T=1/t_1+1/t_2$ for two workers acting together.
Ikhadi 202
Umbuzo
What is pressure?
Impendulo
Force per unit area: $p=F/A$ .
Ikhadi 203
Umbuzo
For equally likely outcomes, how is probability found?
Impendulo
Favorable outcomes divided by total possible outcomes.
Ikhadi 204
Umbuzo
What is a closed circuit?
Impendulo
A complete conducting path that allows current to flow.
Ikhadi 205
Umbuzo
How does a scale drawing connect drawing length to actual length?
Impendulo
Corresponding lengths form an equal ratio using one consistent scale factor.
Ikhadi 206
Umbuzo
What are the main jobs of tire tread?
Impendulo
Provide grip and channel water away from the tire's contact area.
Ikhadi 207
Umbuzo
How can two consecutive integers be represented algebraically?
Impendulo
$n$ and $n+1$ .
Ikhadi 208
Umbuzo
What does Pascal's principle say?
Impendulo
A change in pressure applied to a confined fluid is transmitted undiminished throughout the fluid and to the container walls.
Ikhadi 209
Umbuzo
Why must you reverse the order in a phrase such as “5 less than $x$ ”?
Impendulo
“5 less than $x$ ” means $x-5$ , because the amount is subtracted from $x$ .
Ikhadi 210
Umbuzo
What is a short circuit?
Impendulo
An unintended low-resistance path that can produce dangerously high current.
Ikhadi 211
Umbuzo
What does engine oil do?
Impendulo
Lubricates moving parts, reduces friction and wear, and helps carry heat and contaminants away.
Ikhadi 212
Umbuzo
What does a capacitor store?
Impendulo
Electric charge and energy in an electric field.
Ikhadi 213
Umbuzo
What is the buoyant force on an immersed object equal to?
Impendulo
The weight of the fluid the object displaces.
Ikhadi 214
Umbuzo
What does a fuse do?
Impendulo
Melts and opens the circuit when current exceeds its rated limit.
Ikhadi 215
Umbuzo
What does friction do?
Impendulo
Opposes relative motion or the tendency of motion between contacting surfaces.
Ikhadi 216
Umbuzo
What does a resistor do in a circuit?
Impendulo
Limits current or creates a controlled voltage drop.
Ikhadi 217
Umbuzo
How does a lower center of gravity usually affect stability?
Impendulo
It makes an object less likely to tip.
Ikhadi 218
Umbuzo
What does a circuit breaker do?
Impendulo
Opens a circuit when current is excessive and can usually be reset after the fault is cleared.
Ikhadi 219
Umbuzo
What is torque?
Impendulo
The turning effect of a force: force times perpendicular lever arm.
Ikhadi 220
Umbuzo
What does a diode do?
Impendulo
Allows current mainly in one direction while blocking it in the reverse direction.

Blank flashcards surrounded by abstract geometry, science, electronics, and mechanics study objects on a dark desk.

amakhadi angu-220

ASVAB Flashcards: Verbal, Math, Science & Technical Review

Funda leli qoqo mahhala

I-Nibomo iyavuleka ukuze uqale ukufunda.

Mayelana naleli qoqo

ASVAB Flashcards: Verbal, Math, Science & Technical Review

What the cards practice

What needs separate practice

Learning order

Scope and provenance

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