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.
Bu deste hakkında
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
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Quantity ↔ unit and symbol: recall each base quantity and every named derived quantity in both directions.
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Named unit ↔ coherent base-unit expression: expand all 22 special names, then reverse the mapping with the quantity supplied whenever an expression is shared.
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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.
Bu destedeki kartlar
Kart 1
Soru
What is the SI base unit for time?
Cevap
second (s).
Kart 2
Soru
What is the SI base unit for length?
Cevap
metre (m).
Kart 3
Soru
What is the SI base unit for mass?
Cevap
kilogram (kg).
Kart 4
Soru
What is the SI base unit for electric current?
Cevap
ampere (A).
Kart 5
Soru
What is the SI base unit for thermodynamic temperature?
Cevap
kelvin (K).
Kart 6
Soru
What is the SI base unit for amount of substance?
Cevap
mole (mol).
Kart 7
Soru
What is the SI base unit for luminous intensity?
Cevap
candela (cd).
Kart 8
Soru
Which SI base quantity uses the second (s)?
Cevap
Time.
Kart 9
Soru
Which SI base quantity uses the metre (m)?
Cevap
Length.
Kart 10
Soru
Which SI base quantity uses the kilogram (kg)?
Cevap
Mass.
Kart 11
Soru
Which SI base quantity uses the ampere (A)?
Cevap
Electric current.
Kart 12
Soru
Which SI base quantity uses the kelvin (K)?
Cevap
Thermodynamic temperature.
Kart 13
Soru
Which SI base quantity uses the mole (mol)?
Cevap
Amount of substance.
Kart 14
Soru
Which SI base quantity uses the candela (cd)?
Cevap
Luminous intensity.
Kart 15
Soru
Which SI unit with a special name is used for plane angle?
Cevap
radian (rad).
Kart 16
Soru
Which SI unit with a special name is used for energy, work, or amount of heat?
Cevap
joule (J).
Kart 17
Soru
Which SI unit with a special name is used for electric resistance?
Cevap
ohm (Ω).
Kart 18
Soru
Which SI unit with a special name is used for Celsius temperature?
Cevap
degree Celsius (°C).
Kart 19
Soru
Which SI unit with a special name is used for dose equivalent?
Cevap
sievert (Sv).
Kart 20
Soru
Which SI unit with a special name is used for force?
Cevap
newton (N).
Kart 21
Soru
Which SI unit with a special name is used for electric potential difference?
Cevap
volt (V).
Kart 22
Soru
Which SI unit with a special name is used for magnetic flux density?
Cevap
tesla (T).
Kart 23
Soru
Which SI unit with a special name is used for activity referred to a radionuclide?
Cevap
becquerel (Bq).
Kart 24
Soru
Which SI unit with a special name is used for solid angle?
Cevap
steradian (sr).
Kart 25
Soru
Which SI unit with a special name is used for power or radiant flux?
Cevap
watt (W).
Kart 26
Soru
Which SI unit with a special name is used for electric conductance?
Cevap
siemens (S).
Kart 27
Soru
Which SI unit with a special name is used for luminous flux?
Cevap
lumen (lm).
Kart 28
Soru
Which SI unit with a special name is used for catalytic activity?
Cevap
katal (kat).
Kart 29
Soru
Which SI unit with a special name is used for pressure or stress?
Cevap
pascal (Pa).
Kart 30
Soru
Which SI unit with a special name is used for capacitance?
Cevap
farad (F).
Kart 31
Soru
Which SI unit with a special name is used for inductance?
Cevap
henry (H).
Kart 32
Soru
Which SI unit with a special name is used for absorbed dose or kerma?
Cevap
gray (Gy).
Kart 33
Soru
Which SI unit with a special name is used for frequency?
Cevap
hertz (Hz).
Kart 34
Soru
Which SI unit with a special name is used for electric charge?
Cevap
coulomb (C).
Kart 35
Soru
Which SI unit with a special name is used for magnetic flux?
Cevap
weber (Wb).
Kart 36
Soru
Which SI unit with a special name is used for illuminance?
Cevap
lux (lx).
Kart 37
Soru
What quantity uses the radian (rad)?
Cevap
Plane angle.
Kart 38
Soru
What quantity uses the joule (J)?
Cevap
Energy, work, and amount of heat.
Kart 39
Soru
What quantity uses the ohm (Ω)?
Cevap
Electric resistance.
Kart 40
Soru
What quantity uses the degree Celsius (°C)?
Cevap
Celsius temperature.
Kart 41
Soru
What quantity uses the sievert (Sv)?
Cevap
Dose equivalent.
Kart 42
Soru
What quantity uses the newton (N)?
Cevap
Force.
Kart 43
Soru
What quantity uses the volt (V)?
Cevap
Electric potential difference.
Kart 44
Soru
What quantity uses the tesla (T)?
Cevap
Magnetic flux density.
Kart 45
Soru
What quantity uses the becquerel (Bq)?
Cevap
Activity referred to a radionuclide.
Kart 46
Soru
What quantity uses the steradian (sr)?
Cevap
Solid angle.
Kart 47
Soru
What quantity uses the watt (W)?
Cevap
Power and radiant flux.
Kart 48
Soru
What quantity uses the siemens (S)?
Cevap
Electric conductance.
Kart 49
Soru
What quantity uses the lumen (lm)?
Cevap
Luminous flux.
Kart 50
Soru
What quantity uses the katal (kat)?
Cevap
Catalytic activity.
Kart 51
Soru
What quantity uses the pascal (Pa)?
Cevap
Pressure and stress.
Kart 52
Soru
What quantity uses the farad (F)?
Cevap
Capacitance.
Kart 53
Soru
What quantity uses the henry (H)?
Cevap
Inductance.
Kart 54
Soru
What quantity uses the gray (Gy)?
Cevap
Absorbed dose and kerma.
Kart 55
Soru
What quantity uses the hertz (Hz)?
Cevap
Frequency.
110 kart
SI Units Flashcards: 7 Base Units & 22 Named Derived Units
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Kart 56
Soru
What quantity uses the coulomb (C)?
Cevap
Electric charge.
Kart 57
Soru
What quantity uses the weber (Wb)?
Cevap
Magnetic flux.
Kart 58
Soru
What quantity uses the lux (lx)?
Cevap
Illuminance.
Kart 59
Soru
Express the radian (rad) in coherent SI base units.
Cevap
1. The symbol rad keeps the plane-angle context explicit.
Kart 60
Soru
Express the joule (J) in coherent SI base units.
Cevap
kg·m²·s⁻².
Kart 61
Soru
Express the ohm (Ω) in coherent SI base units.
Cevap
kg·m²·s⁻³·A⁻².
Kart 62
Soru
Express the degree Celsius (°C) in coherent SI base units.
Cevap
K. A degree Celsius and a kelvin have the same size; their zero points differ.
Kart 63
Soru
Express the sievert (Sv) in coherent SI base units.
Cevap
m²·s⁻².
Kart 64
Soru
Express the newton (N) in coherent SI base units.
Cevap
kg·m·s⁻².
Kart 65
Soru
Express the volt (V) in coherent SI base units.
Cevap
kg·m²·s⁻³·A⁻¹.
Kart 66
Soru
Express the tesla (T) in coherent SI base units.
Cevap
kg·s⁻²·A⁻¹.
Kart 67
Soru
Express the becquerel (Bq) in coherent SI base units.
Cevap
s⁻¹. Use Bq for stochastic nuclear transformations, not periodic phenomena.
Kart 68
Soru
Express the steradian (sr) in coherent SI base units.
Cevap
1. The symbol sr keeps the solid-angle context explicit.
Kart 69
Soru
Express the watt (W) in coherent SI base units.
Cevap
kg·m²·s⁻³.
Kart 70
Soru
Express the siemens (S) in coherent SI base units.
Cevap
kg⁻¹·m⁻²·s³·A².
Kart 71
Soru
Express the lumen (lm) in coherent SI base units.
Cevap
cd·sr. Since sr has unit one, this is dimensionally cd; sr keeps the solid-angle context explicit.
Kart 72
Soru
Express the katal (kat) in coherent SI base units.
Cevap
mol·s⁻¹.
Kart 73
Soru
Express the pascal (Pa) in coherent SI base units.
Cevap
kg·m⁻¹·s⁻².
Kart 74
Soru
Express the farad (F) in coherent SI base units.
Cevap
kg⁻¹·m⁻²·s⁴·A².
Kart 75
Soru
Express the henry (H) in coherent SI base units.
Cevap
kg·m²·s⁻²·A⁻².
Kart 76
Soru
Express the gray (Gy) in coherent SI base units.
Cevap
m²·s⁻².
Kart 77
Soru
Express the hertz (Hz) in coherent SI base units.
Cevap
s⁻¹. Use Hz for periodic phenomena.
Kart 78
Soru
Express the coulomb (C) in coherent SI base units.
Cevap
A·s.
Kart 79
Soru
Express the weber (Wb) in coherent SI base units.
Cevap
kg·m²·s⁻²·A⁻¹.
Kart 80
Soru
Express the lux (lx) in coherent SI base units.
Cevap
cd·sr·m⁻². Since sr has unit one, this is dimensionally cd·m⁻²; sr keeps the solid-angle context explicit.
Kart 81
Soru
For plane angle, which named SI unit has the coherent base-unit expression 1?
Cevap
radian (rad).
Kart 82
Soru
For energy, work, or amount of heat, which named SI unit has the coherent base-unit expression kg·m²·s⁻²?
Cevap
joule (J).
Kart 83
Soru
For electric resistance, which named SI unit has the coherent base-unit expression kg·m²·s⁻³·A⁻²?
Cevap
ohm (Ω).
Kart 84
Soru
For Celsius temperature, which named SI unit has the coherent base-unit expression K?
Cevap
degree Celsius (°C).
Kart 85
Soru
For dose equivalent, which named SI unit has the coherent base-unit expression m²·s⁻²?
Cevap
sievert (Sv).
Kart 86
Soru
For force, which named SI unit has the coherent base-unit expression kg·m·s⁻²?
Cevap
newton (N).
Kart 87
Soru
For electric potential difference, which named SI unit has the coherent base-unit expression kg·m²·s⁻³·A⁻¹?
Cevap
volt (V).
Kart 88
Soru
For magnetic flux density, which named SI unit has the coherent base-unit expression kg·s⁻²·A⁻¹?
Cevap
tesla (T).
Kart 89
Soru
For activity referred to a radionuclide, which named SI unit has the coherent base-unit expression s⁻¹?
Cevap
becquerel (Bq).
Kart 90
Soru
For solid angle, which named SI unit has the coherent base-unit expression 1?
Cevap
steradian (sr).
Kart 91
Soru
For power or radiant flux, which named SI unit has the coherent base-unit expression kg·m²·s⁻³?
Cevap
watt (W).
Kart 92
Soru
For electric conductance, which named SI unit has the coherent base-unit expression kg⁻¹·m⁻²·s³·A²?
Cevap
siemens (S).
Kart 93
Soru
For luminous flux, which named SI unit has the coherent base-unit expression cd·sr?
Cevap
lumen (lm).
Kart 94
Soru
For catalytic activity, which named SI unit has the coherent base-unit expression mol·s⁻¹?
Cevap
katal (kat).
Kart 95
Soru
For pressure or stress, which named SI unit has the coherent base-unit expression kg·m⁻¹·s⁻²?
Cevap
pascal (Pa).
Kart 96
Soru
For capacitance, which named SI unit has the coherent base-unit expression kg⁻¹·m⁻²·s⁴·A²?
Cevap
farad (F).
Kart 97
Soru
For inductance, which named SI unit has the coherent base-unit expression kg·m²·s⁻²·A⁻²?
Cevap
henry (H).
Kart 98
Soru
For absorbed dose or kerma, which named SI unit has the coherent base-unit expression m²·s⁻²?
Cevap
gray (Gy).
Kart 99
Soru
For frequency, which named SI unit has the coherent base-unit expression s⁻¹?
Cevap
hertz (Hz).
Kart 100
Soru
For electric charge, which named SI unit has the coherent base-unit expression A·s?
Cevap
coulomb (C).
Kart 101
Soru
For magnetic flux, which named SI unit has the coherent base-unit expression kg·m²·s⁻²·A⁻¹?
Cevap
weber (Wb).
Kart 102
Soru
For illuminance, which named SI unit has the coherent base-unit expression cd·sr·m⁻²?
Cevap
lux (lx).
Kart 103
Soru
How are SI unit names capitalized in English?
Cevap
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.
Kart 104
Soru
What determines capitalization in an SI unit symbol?
Cevap
Symbols derived from proper names start with a capital letter; the others are lowercase. Case is mandatory and meaningful.
Kart 105
Soru
How do SI unit symbols behave in plurals and at sentence endings?
Cevap
They never take a plural ending, and they take no period unless the symbol ends a sentence. Unit symbols are mathematical symbols, not abbreviations.
Kart 106
Soru
How should a number and an SI unit symbol be spaced?
Cevap
Put a space between them: 25 m and 20 °C. In °C, the degree sign and C stay together.
Kart 107
Soru
Both hertz and becquerel reduce to s⁻¹. When is each used?
Cevap
Use hertz (Hz) for periodic phenomena and becquerel (Bq) for activity referred to a radionuclide. The shared expression doesn't make the quantities interchangeable.
Kart 108
Soru
Both gray and sievert reduce to m²·s⁻². What distinguishes them?
Cevap
Gray (Gy) is used for absorbed dose or kerma; sievert (Sv) is used for dose equivalent. The quantity context determines the special name.
Kart 109
Soru
Radian and steradian both have coherent unit expression 1. What distinguishes them?
Cevap
Radian (rad) is used for plane angle; steradian (sr) is used for solid angle. Their symbols preserve the quantity context.
Kart 110
Soru
For temperature intervals, how do kelvin and degrees Celsius compare?
Cevap
A change of 1 K equals a change of 1 °C. Their zero points differ, so absolute temperatures aren't numerically equal.
110 kart
SI Units Flashcards: 7 Base Units & 22 Named Derived Units
Nibomo açılır ve hemen çalışmaya başlayabilirsiniz.