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Metric Prefix Flashcards: All 24 SI Names, Symbols & Powers of Ten

Learn all 24 current SI prefixes with 72 flashcards for name, case-sensitive symbol, and power-of-ten recall.

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These metric prefix flashcards cover all 24 SI prefixes currently recognized by NIST, from quetta at 10^30 to quecto at 10^-30. The 72 cards practice exactly three mappings for every prefix: name to case-sensitive symbol and power of ten; symbol to name and power of ten; and power of ten to name and case-sensitive symbol.

Case matters. M is mega while m is milli, and P/p, Z/z, Y/y, R/r, and Q/q also represent different prefixes. Each front labels the cue and requested mapping, so a bare symbol or exponent stays unambiguous on mixed-review and standalone surfaces. Each back starts with the answer.

The deterministic sequence begins with familiar metric prefixes, expands toward the extremes, and interleaves all three recall directions. Variants of the same prefix stay far apart, with at least three unrelated cards between them. Confusing uppercase and lowercase symbols are separated too.

This is a focused metric prefix quiz, not a full SI course. It excludes conversions, full decimal expansions, SI base and derived units, unit examples, pronunciation and spelling drills, IEC or binary prefixes, historical prefixes, and 10^0, which has no prefix. There are no card images.

The NIST Metric (SI) Prefixes page supplies the factual ledger. The prompts, answers, selection structure, metadata, sequence, and generated cover were independently authored; no NIST prose, examples, layout, or media were copied. Facts aren't claimed as proprietary. The original wording, organization, metadata, and cover are dedicated under CC0 1.0 to the extent applicable rights exist.

Independent study deck. Not affiliated with or endorsed by NIST.

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  1. Kaart 1

    Küsimus

    SI prefix name: kilo → case-sensitive symbol + power of ten

    Vastus

    k

    10310^{3}

  2. Kaart 2

    Küsimus

    SI prefix symbol (case-sensitive): M → name + power of ten

    Vastus

    mega

    10610^{6}

  3. Kaart 3

    Küsimus

    SI prefix power:

    10−210^{-2}

    → name + case-sensitive symbol

    Vastus

    centi

    c

  4. Kaart 4

    Küsimus

    SI prefix name: nano → case-sensitive symbol + power of ten

    Vastus

    n

    10−910^{-9}

  5. Kaart 5

    Küsimus

    SI prefix symbol (case-sensitive): h → name + power of ten

    Vastus

    hecto

    10210^{2}

  6. Kaart 6

    Küsimus

    SI prefix power:

    10−610^{-6}

    → name + case-sensitive symbol

    Vastus

    micro

    μ

  7. Kaart 7

    Küsimus

    SI prefix name: peta → case-sensitive symbol + power of ten

    Vastus

    P

    101510^{15}

  8. Kaart 8

    Küsimus

    SI prefix symbol (case-sensitive): d → name + power of ten

    Vastus

    deci

    10−110^{-1}

  9. Kaart 9

    Küsimus

    SI prefix power:

    10−310^{-3}

    → name + case-sensitive symbol

    Vastus

    milli

    m

  10. Kaart 10

    Küsimus

    SI prefix name: tera → case-sensitive symbol + power of ten

    Vastus

    T

    101210^{12}

  11. Kaart 11

    Küsimus

    SI prefix symbol (case-sensitive): p → name + power of ten

    Vastus

    pico

    10−1210^{-12}

  12. Kaart 12

    Küsimus

    SI prefix power:

    10110^{1}

    → name + case-sensitive symbol

    Vastus

    deka

    da

  13. Kaart 13

    Küsimus

    SI prefix name: giga → case-sensitive symbol + power of ten

    Vastus

    G

    10910^{9}

  14. Kaart 14

    Küsimus

    SI prefix symbol (case-sensitive): f → name + power of ten

    Vastus

    femto

    10−1510^{-15}

  15. Kaart 15

    Küsimus

    SI prefix power:

    101810^{18}

    → name + case-sensitive symbol

    Vastus

    exa

    E

  16. Kaart 16

    Küsimus

    SI prefix name: atto → case-sensitive symbol + power of ten

    Vastus

    a

    10−1810^{-18}

  17. Kaart 17

    Küsimus

    SI prefix symbol (case-sensitive): Z → name + power of ten

    Vastus

    zetta

    102110^{21}

  18. Kaart 18

    Küsimus

    SI prefix power:

    10−2410^{-24}

    → name + case-sensitive symbol

    Vastus

    yocto

    y

  19. Kaart 19

    Küsimus

    SI prefix name: ronna → case-sensitive symbol + power of ten

    Vastus

    R

    102710^{27}

  20. Kaart 20

    Küsimus

    SI prefix symbol (case-sensitive): q → name + power of ten

    Vastus

    quecto

    10−3010^{-30}

  21. Kaart 21

    Küsimus

    SI prefix power:

    10−2110^{-21}

    → name + case-sensitive symbol

    Vastus

    zepto

    z

  22. Kaart 22

    Küsimus

    SI prefix name: yotta → case-sensitive symbol + power of ten

    Vastus

    Y

    102410^{24}

  23. Kaart 23

    Küsimus

    SI prefix symbol (case-sensitive): r → name + power of ten

    Vastus

    ronto

    10−2710^{-27}

  24. Kaart 24

    Küsimus

    SI prefix power:

    103010^{30}

    → name + case-sensitive symbol

    Vastus

    quetta

    Q

  25. Kaart 25

    Küsimus

    SI prefix name: milli → case-sensitive symbol + power of ten

    Vastus

    m

    10−310^{-3}

  26. Kaart 26

    Küsimus

    SI prefix symbol (case-sensitive): k → name + power of ten

    Vastus

    kilo

    10310^{3}

  27. Kaart 27

    Küsimus

    SI prefix power:

    10210^{2}

    → name + case-sensitive symbol

    Vastus

    hecto

    h

  28. Kaart 28

    Küsimus

    SI prefix name: micro → case-sensitive symbol + power of ten

    Vastus

    μ

    10−610^{-6}

  29. Kaart 29

    Küsimus

    SI prefix symbol (case-sensitive): G → name + power of ten

    Vastus

    giga

    10910^{9}

  30. Kaart 30

    Küsimus

    SI prefix power:

    10−110^{-1}

    → name + case-sensitive symbol

    Vastus

    deci

    d

  31. Kaart 31

    Küsimus

    SI prefix name: centi → case-sensitive symbol + power of ten

    Vastus

    c

    10−210^{-2}

  32. Kaart 32

    Küsimus

    SI prefix symbol (case-sensitive): T → name + power of ten

    Vastus

    tera

    101210^{12}

  33. Kaart 33

    Küsimus

    SI prefix power:

    10610^{6}

    → name + case-sensitive symbol

    Vastus

    mega

    M

  34. Kaart 34

    Küsimus

    SI prefix name: deka → case-sensitive symbol + power of ten

    Vastus

    da

    10110^{1}

  35. Kaart 35

    Küsimus

    SI prefix symbol (case-sensitive): n → name + power of ten

    Vastus

    nano

    10−910^{-9}

  36. Kaart 36

    Küsimus

    SI prefix power:

    10−1210^{-12}

    → name + case-sensitive symbol

    Vastus

    pico

    p

  37. Kaart 37

    Küsimus

    SI prefix name: exa → case-sensitive symbol + power of ten

    Vastus

    E

    101810^{18}

  38. Kaart 38

    Küsimus

    SI prefix symbol (case-sensitive): a → name + power of ten

    Vastus

    atto

    10−1810^{-18}

  39. Kaart 39

    Küsimus

    SI prefix power:

    10−2710^{-27}

    → name + case-sensitive symbol

    Vastus

    ronto

    r

  40. Kaart 40

    Küsimus

    SI prefix name: yocto → case-sensitive symbol + power of ten

    Vastus

    y

    10−2410^{-24}

  41. Kaart 41

    Küsimus

    SI prefix symbol (case-sensitive): P → name + power of ten

    Vastus

    peta

    101510^{15}

  42. Kaart 42

    Küsimus

    SI prefix power:

    102110^{21}

    → name + case-sensitive symbol

    Vastus

    zetta

    Z

  43. Kaart 43

    Küsimus

    SI prefix name: quetta → case-sensitive symbol + power of ten

    Vastus

    Q

    103010^{30}

  44. Kaart 44

    Küsimus

    SI prefix symbol (case-sensitive): R → name + power of ten

    Vastus

    ronna

    102710^{27}

  45. Kaart 45

    Küsimus

    SI prefix power:

    10−1510^{-15}

    → name + case-sensitive symbol

    Vastus

    femto

    f

  46. Kaart 46

    Küsimus

    SI prefix name: zepto → case-sensitive symbol + power of ten

    Vastus

    z

    10−2110^{-21}

  47. Kaart 47

    Küsimus

    SI prefix symbol (case-sensitive): Y → name + power of ten

    Vastus

    yotta

    102410^{24}

  48. Kaart 48

    Küsimus

    SI prefix power:

    10−3010^{-30}

    → name + case-sensitive symbol

    Vastus

    quecto

    q

  49. Kaart 49

    Küsimus

    SI prefix name: mega → case-sensitive symbol + power of ten

    Vastus

    M

    10610^{6}

  50. Kaart 50

    Küsimus

    SI prefix symbol (case-sensitive): c → name + power of ten

    Vastus

    centi

    10−210^{-2}

  51. Kaart 51

    Küsimus

    SI prefix power:

    10310^{3}

    → name + case-sensitive symbol

    Vastus

    kilo

    k

  52. Kaart 52

    Küsimus

    SI prefix name: hecto → case-sensitive symbol + power of ten

    Vastus

    h

    10210^{2}

  53. Kaart 53

    Küsimus

    SI prefix symbol (case-sensitive): μ → name + power of ten

    Vastus

    micro

    10−610^{-6}

  54. Kaart 54

    Küsimus

    SI prefix power:

    10−910^{-9}

    → name + case-sensitive symbol

    Vastus

    nano

    n

  55. Kaart 55

    Küsimus

    SI prefix name: deci → case-sensitive symbol + power of ten

    Vastus

    d

    10−110^{-1}

  56. Kaart 56

    Küsimus

    SI prefix symbol (case-sensitive): m → name + power of ten

    Vastus

    milli

    10−310^{-3}

  57. Kaart 57

    Küsimus

    SI prefix power:

    10910^{9}

    → name + case-sensitive symbol

    Vastus

    giga

    G

  58. Kaart 58

    Küsimus

    SI prefix name: pico → case-sensitive symbol + power of ten

    Vastus

    p

    10−1210^{-12}

  59. Kaart 59

    Küsimus

    SI prefix symbol (case-sensitive): da → name + power of ten

    Vastus

    deka

    10110^{1}

  60. Kaart 60

    Küsimus

    SI prefix power:

    101210^{12}

    → name + case-sensitive symbol

    Vastus

    tera

    T

  61. Kaart 61

    Küsimus

    SI prefix name: quecto → case-sensitive symbol + power of ten

    Vastus

    q

    10−3010^{-30}

  62. Kaart 62

    Küsimus

    SI prefix symbol (case-sensitive): E → name + power of ten

    Vastus

    exa

    101810^{18}

  63. Kaart 63

    Küsimus

    SI prefix power:

    10−1810^{-18}

    → name + case-sensitive symbol

    Vastus

    atto

    a

  64. Kaart 64

    Küsimus

    SI prefix name: zetta → case-sensitive symbol + power of ten

    Vastus

    Z

    102110^{21}

  65. Kaart 65

    Küsimus

    SI prefix symbol (case-sensitive): y → name + power of ten

    Vastus

    yocto

    10−2410^{-24}

  66. Kaart 66

    Küsimus

    SI prefix power:

    101510^{15}

    → name + case-sensitive symbol

    Vastus

    peta

    P

  67. Kaart 67

    Küsimus

    SI prefix name: ronto → case-sensitive symbol + power of ten

    Vastus

    r

    10−2710^{-27}

  68. Kaart 68

    Küsimus

    SI prefix symbol (case-sensitive): Q → name + power of ten

    Vastus

    quetta

    103010^{30}

  69. Kaart 69

    Küsimus

    SI prefix power:

    102410^{24}

    → name + case-sensitive symbol

    Vastus

    yotta

    Y

  70. Kaart 70

    Küsimus

    SI prefix name: femto → case-sensitive symbol + power of ten

    Vastus

    f

    10−1510^{-15}

  71. Kaart 71

    Küsimus

    SI prefix symbol (case-sensitive): z → name + power of ten

    Vastus

    zepto

    10−2110^{-21}

  72. Kaart 72

    Küsimus

    SI prefix power:

    102710^{27}

    → name + case-sensitive symbol

    Vastus

    ronna

    R

Concentric luminous rings and nested translucent forms expanding from a warm center on a deep blue background.

72 kaarti

Metric Prefix Flashcards: All 24 SI Names, Symbols & Powers of Ten

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