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.

De autorul Open Study Contributor

Despre acest pachet

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.

Fișele din acest pachet

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

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