SI Units Flashcards: 7 Base Units & 22 Named Derived Units
Practice all 7 SI base units and 22 derived units with special names: quantities, symbols, and base-unit expressions in one installable deck.
O tomto balíčku
Most SI lists are easy to scan and awkward to recall. These 110 text-only cards turn the complete core into small retrieval tasks: all seven base units and all 22 derived units with special names and symbols.
What the cards practice
-
Quantity ↔ unit and symbol: recall each base quantity and every named derived quantity in both directions.
-
Named unit ↔ coherent base-unit expression: expand all 22 special names, then reverse the mapping with the quantity supplied whenever an expression is shared.
-
Notation and distinctions: keep case, spacing, symbol grammar, Hz/Bq, Gy/Sv, rad/sr, and kelvin/degree Celsius intervals straight.
The deck leaves out prefixes, conversions, non-SI units, unnamed derived units, significant figures, uncertainty, laboratory procedures, historical definitions, defining-constant values, and proprietary exam material. Expression-to-unit prompts always state the quantity, so shared expressions such as s⁻¹ and m²·s⁻² stay unambiguous.
The sequence establishes the seven base units first. It then alternates the 22 named units with a deterministic stride before moving from identity recall to base-unit expressions. Related directions and easy-to-confuse units stay at least three unrelated cards apart; the review scheduler handles longer-term spacing after installation.
Facts were checked against the BIPM SI Brochure, 9th edition, version 4.01 and NIST SP 330 §2, with notation checked against NIST SP 330 §5. The 2026 BIPM edition expresses radian and steradian as unit one; this deck follows that current form. No source prose, third-party deck text, or exam content was copied.
An AI tool helped draft and sequence the cards and generated the cover. Every final front and back was manually checked against the official SI tables. The original questions, answers, selection, sequence, metadata, and cover are shared under CC0 1.0 to the extent those elements can be dedicated; the underlying SI facts remain common knowledge.
Kartičky v tomto balíčku
Kartička 1
Otázka
What is the SI base unit for time?
Odpověď
second (s).
Kartička 2
Otázka
What is the SI base unit for length?
Odpověď
metre (m).
Kartička 3
Otázka
What is the SI base unit for mass?
Odpověď
kilogram (kg).
Kartička 4
Otázka
What is the SI base unit for electric current?
Odpověď
ampere (A).
Kartička 5
Otázka
What is the SI base unit for thermodynamic temperature?
Odpověď
kelvin (K).
Kartička 6
Otázka
What is the SI base unit for amount of substance?
Odpověď
mole (mol).
Kartička 7
Otázka
What is the SI base unit for luminous intensity?
Odpověď
candela (cd).
Kartička 8
Otázka
Which SI base quantity uses the second (s)?
Odpověď
Time.
Kartička 9
Otázka
Which SI base quantity uses the metre (m)?
Odpověď
Length.
Kartička 10
Otázka
Which SI base quantity uses the kilogram (kg)?
Odpověď
Mass.
Kartička 11
Otázka
Which SI base quantity uses the ampere (A)?
Odpověď
Electric current.
Kartička 12
Otázka
Which SI base quantity uses the kelvin (K)?
Odpověď
Thermodynamic temperature.
Kartička 13
Otázka
Which SI base quantity uses the mole (mol)?
Odpověď
Amount of substance.
Kartička 14
Otázka
Which SI base quantity uses the candela (cd)?
Odpověď
Luminous intensity.
Kartička 15
Otázka
Which SI unit with a special name is used for plane angle?
Odpověď
radian (rad).
Kartička 16
Otázka
Which SI unit with a special name is used for energy, work, or amount of heat?
Odpověď
joule (J).
Kartička 17
Otázka
Which SI unit with a special name is used for electric resistance?
Odpověď
ohm (Ω).
Kartička 18
Otázka
Which SI unit with a special name is used for Celsius temperature?
Odpověď
degree Celsius (°C).
Kartička 19
Otázka
Which SI unit with a special name is used for dose equivalent?
Odpověď
sievert (Sv).
Kartička 20
Otázka
Which SI unit with a special name is used for force?
Odpověď
newton (N).
Kartička 21
Otázka
Which SI unit with a special name is used for electric potential difference?
Odpověď
volt (V).
Kartička 22
Otázka
Which SI unit with a special name is used for magnetic flux density?
Odpověď
tesla (T).
Kartička 23
Otázka
Which SI unit with a special name is used for activity referred to a radionuclide?
Odpověď
becquerel (Bq).
Kartička 24
Otázka
Which SI unit with a special name is used for solid angle?
Odpověď
steradian (sr).
Kartička 25
Otázka
Which SI unit with a special name is used for power or radiant flux?
Odpověď
watt (W).
Kartička 26
Otázka
Which SI unit with a special name is used for electric conductance?
Odpověď
siemens (S).
Kartička 27
Otázka
Which SI unit with a special name is used for luminous flux?
Odpověď
lumen (lm).
Kartička 28
Otázka
Which SI unit with a special name is used for catalytic activity?
Odpověď
katal (kat).
Kartička 29
Otázka
Which SI unit with a special name is used for pressure or stress?
Odpověď
pascal (Pa).
Kartička 30
Otázka
Which SI unit with a special name is used for capacitance?
Odpověď
farad (F).
Kartička 31
Otázka
Which SI unit with a special name is used for inductance?
Odpověď
henry (H).
Kartička 32
Otázka
Which SI unit with a special name is used for absorbed dose or kerma?
Odpověď
gray (Gy).
Kartička 33
Otázka
Which SI unit with a special name is used for frequency?
Odpověď
hertz (Hz).
Kartička 34
Otázka
Which SI unit with a special name is used for electric charge?
Odpověď
coulomb (C).
Kartička 35
Otázka
Which SI unit with a special name is used for magnetic flux?
Odpověď
weber (Wb).
Kartička 36
Otázka
Which SI unit with a special name is used for illuminance?
Odpověď
lux (lx).
Kartička 37
Otázka
What quantity uses the radian (rad)?
Odpověď
Plane angle.
Kartička 38
Otázka
What quantity uses the joule (J)?
Odpověď
Energy, work, and amount of heat.
Kartička 39
Otázka
What quantity uses the ohm (Ω)?
Odpověď
Electric resistance.
Kartička 40
Otázka
What quantity uses the degree Celsius (°C)?
Odpověď
Celsius temperature.
Kartička 41
Otázka
What quantity uses the sievert (Sv)?
Odpověď
Dose equivalent.
Kartička 42
Otázka
What quantity uses the newton (N)?
Odpověď
Force.
Kartička 43
Otázka
What quantity uses the volt (V)?
Odpověď
Electric potential difference.
Kartička 44
Otázka
What quantity uses the tesla (T)?
Odpověď
Magnetic flux density.
Kartička 45
Otázka
What quantity uses the becquerel (Bq)?
Odpověď
Activity referred to a radionuclide.
Kartička 46
Otázka
What quantity uses the steradian (sr)?
Odpověď
Solid angle.
Kartička 47
Otázka
What quantity uses the watt (W)?
Odpověď
Power and radiant flux.
Kartička 48
Otázka
What quantity uses the siemens (S)?
Odpověď
Electric conductance.
Kartička 49
Otázka
What quantity uses the lumen (lm)?
Odpověď
Luminous flux.
Kartička 50
Otázka
What quantity uses the katal (kat)?
Odpověď
Catalytic activity.
Kartička 51
Otázka
What quantity uses the pascal (Pa)?
Odpověď
Pressure and stress.
Kartička 52
Otázka
What quantity uses the farad (F)?
Odpověď
Capacitance.
Kartička 53
Otázka
What quantity uses the henry (H)?
Odpověď
Inductance.
Kartička 54
Otázka
What quantity uses the gray (Gy)?
Odpověď
Absorbed dose and kerma.
Kartička 55
Otázka
What quantity uses the hertz (Hz)?
Odpověď
Frequency.
110 kartiček
SI Units Flashcards: 7 Base Units & 22 Named Derived Units
Učit se tento balíček zdarmaOtevře se Nibomo, abyste se mohli začít učit.
Kartička 56
Otázka
What quantity uses the coulomb (C)?
Odpověď
Electric charge.
Kartička 57
Otázka
What quantity uses the weber (Wb)?
Odpověď
Magnetic flux.
Kartička 58
Otázka
What quantity uses the lux (lx)?
Odpověď
Illuminance.
Kartička 59
Otázka
Express the radian (rad) in coherent SI base units.
Odpověď
1. The symbol rad keeps the plane-angle context explicit.
Kartička 60
Otázka
Express the joule (J) in coherent SI base units.
Odpověď
kg·m²·s⁻².
Kartička 61
Otázka
Express the ohm (Ω) in coherent SI base units.
Odpověď
kg·m²·s⁻³·A⁻².
Kartička 62
Otázka
Express the degree Celsius (°C) in coherent SI base units.
Odpověď
K. A degree Celsius and a kelvin have the same size; their zero points differ.
Kartička 63
Otázka
Express the sievert (Sv) in coherent SI base units.
Odpověď
m²·s⁻².
Kartička 64
Otázka
Express the newton (N) in coherent SI base units.
Odpověď
kg·m·s⁻².
Kartička 65
Otázka
Express the volt (V) in coherent SI base units.
Odpověď
kg·m²·s⁻³·A⁻¹.
Kartička 66
Otázka
Express the tesla (T) in coherent SI base units.
Odpověď
kg·s⁻²·A⁻¹.
Kartička 67
Otázka
Express the becquerel (Bq) in coherent SI base units.
Odpověď
s⁻¹. Use Bq for stochastic nuclear transformations, not periodic phenomena.
Kartička 68
Otázka
Express the steradian (sr) in coherent SI base units.
Odpověď
1. The symbol sr keeps the solid-angle context explicit.
Kartička 69
Otázka
Express the watt (W) in coherent SI base units.
Odpověď
kg·m²·s⁻³.
Kartička 70
Otázka
Express the siemens (S) in coherent SI base units.
Odpověď
kg⁻¹·m⁻²·s³·A².
Kartička 71
Otázka
Express the lumen (lm) in coherent SI base units.
Odpověď
cd·sr. Since sr has unit one, this is dimensionally cd; sr keeps the solid-angle context explicit.
Kartička 72
Otázka
Express the katal (kat) in coherent SI base units.
Odpověď
mol·s⁻¹.
Kartička 73
Otázka
Express the pascal (Pa) in coherent SI base units.
Odpověď
kg·m⁻¹·s⁻².
Kartička 74
Otázka
Express the farad (F) in coherent SI base units.
Odpověď
kg⁻¹·m⁻²·s⁴·A².
Kartička 75
Otázka
Express the henry (H) in coherent SI base units.
Odpověď
kg·m²·s⁻²·A⁻².
Kartička 76
Otázka
Express the gray (Gy) in coherent SI base units.
Odpověď
m²·s⁻².
Kartička 77
Otázka
Express the hertz (Hz) in coherent SI base units.
Odpověď
s⁻¹. Use Hz for periodic phenomena.
Kartička 78
Otázka
Express the coulomb (C) in coherent SI base units.
Odpověď
A·s.
Kartička 79
Otázka
Express the weber (Wb) in coherent SI base units.
Odpověď
kg·m²·s⁻²·A⁻¹.
Kartička 80
Otázka
Express the lux (lx) in coherent SI base units.
Odpověď
cd·sr·m⁻². Since sr has unit one, this is dimensionally cd·m⁻²; sr keeps the solid-angle context explicit.
Kartička 81
Otázka
For plane angle, which named SI unit has the coherent base-unit expression 1?
Odpověď
radian (rad).
Kartička 82
Otázka
For energy, work, or amount of heat, which named SI unit has the coherent base-unit expression kg·m²·s⁻²?
Odpověď
joule (J).
Kartička 83
Otázka
For electric resistance, which named SI unit has the coherent base-unit expression kg·m²·s⁻³·A⁻²?
Odpověď
ohm (Ω).
Kartička 84
Otázka
For Celsius temperature, which named SI unit has the coherent base-unit expression K?
Odpověď
degree Celsius (°C).
Kartička 85
Otázka
For dose equivalent, which named SI unit has the coherent base-unit expression m²·s⁻²?
Odpověď
sievert (Sv).
Kartička 86
Otázka
For force, which named SI unit has the coherent base-unit expression kg·m·s⁻²?
Odpověď
newton (N).
Kartička 87
Otázka
For electric potential difference, which named SI unit has the coherent base-unit expression kg·m²·s⁻³·A⁻¹?
Odpověď
volt (V).
Kartička 88
Otázka
For magnetic flux density, which named SI unit has the coherent base-unit expression kg·s⁻²·A⁻¹?
Odpověď
tesla (T).
Kartička 89
Otázka
For activity referred to a radionuclide, which named SI unit has the coherent base-unit expression s⁻¹?
Odpověď
becquerel (Bq).
Kartička 90
Otázka
For solid angle, which named SI unit has the coherent base-unit expression 1?
Odpověď
steradian (sr).
Kartička 91
Otázka
For power or radiant flux, which named SI unit has the coherent base-unit expression kg·m²·s⁻³?
Odpověď
watt (W).
Kartička 92
Otázka
For electric conductance, which named SI unit has the coherent base-unit expression kg⁻¹·m⁻²·s³·A²?
Odpověď
siemens (S).
Kartička 93
Otázka
For luminous flux, which named SI unit has the coherent base-unit expression cd·sr?
Odpověď
lumen (lm).
Kartička 94
Otázka
For catalytic activity, which named SI unit has the coherent base-unit expression mol·s⁻¹?
Odpověď
katal (kat).
Kartička 95
Otázka
For pressure or stress, which named SI unit has the coherent base-unit expression kg·m⁻¹·s⁻²?
Odpověď
pascal (Pa).
Kartička 96
Otázka
For capacitance, which named SI unit has the coherent base-unit expression kg⁻¹·m⁻²·s⁴·A²?
Odpověď
farad (F).
Kartička 97
Otázka
For inductance, which named SI unit has the coherent base-unit expression kg·m²·s⁻²·A⁻²?
Odpověď
henry (H).
Kartička 98
Otázka
For absorbed dose or kerma, which named SI unit has the coherent base-unit expression m²·s⁻²?
Odpověď
gray (Gy).
Kartička 99
Otázka
For frequency, which named SI unit has the coherent base-unit expression s⁻¹?
Odpověď
hertz (Hz).
Kartička 100
Otázka
For electric charge, which named SI unit has the coherent base-unit expression A·s?
Odpověď
coulomb (C).
Kartička 101
Otázka
For magnetic flux, which named SI unit has the coherent base-unit expression kg·m²·s⁻²·A⁻¹?
Odpověď
weber (Wb).
Kartička 102
Otázka
For illuminance, which named SI unit has the coherent base-unit expression cd·sr·m⁻²?
Odpověď
lux (lx).
Kartička 103
Otázka
How are SI unit names capitalized in English?
Odpověď
They normally start with a lowercase letter, even when named after a person. Within this deck, the proper-name modifier in degree Celsius keeps its capital C.
Kartička 104
Otázka
What determines capitalization in an SI unit symbol?
Odpověď
Symbols derived from proper names start with a capital letter; the others are lowercase. Case is mandatory and meaningful.
Kartička 105
Otázka
How do SI unit symbols behave in plurals and at sentence endings?
Odpověď
They never take a plural ending, and they take no period unless the symbol ends a sentence. Unit symbols are mathematical symbols, not abbreviations.
Kartička 106
Otázka
How should a number and an SI unit symbol be spaced?
Odpověď
Put a space between them: 25 m and 20 °C. In °C, the degree sign and C stay together.
Kartička 107
Otázka
Both hertz and becquerel reduce to s⁻¹. When is each used?
Odpověď
Use hertz (Hz) for periodic phenomena and becquerel (Bq) for activity referred to a radionuclide. The shared expression doesn't make the quantities interchangeable.
Kartička 108
Otázka
Both gray and sievert reduce to m²·s⁻². What distinguishes them?
Odpověď
Gray (Gy) is used for absorbed dose or kerma; sievert (Sv) is used for dose equivalent. The quantity context determines the special name.
Kartička 109
Otázka
Radian and steradian both have coherent unit expression 1. What distinguishes them?
Odpověď
Radian (rad) is used for plane angle; steradian (sr) is used for solid angle. Their symbols preserve the quantity context.
Kartička 110
Otázka
For temperature intervals, how do kelvin and degrees Celsius compare?
Odpověď
A change of 1 K equals a change of 1 °C. Their zero points differ, so absolute temperatures aren't numerically equal.
110 kartiček
SI Units Flashcards: 7 Base Units & 22 Named Derived Units
Otevře se Nibomo, abyste se mohli začít učit.