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Jouer Froggy Jumps
    • 1. What is the SI unit of length?
    A
    Meter
    B
    Kilometer
    C
    Centimeter
    2. What is the speed of light in a vacuum?
    A
    3,000,000 m/s
    B
    299,792,458 m/s
    C
    29,792,458 m/s
    3. What is the SI unit of mass?
    A
    Gram
    B
    Kilogram
    C
    Milligram
    4. Which is defined as the fixed numerical value of the Planck constant?
    A
    Meter
    B
    Candela
    C
    Kilogram
    5. What is the SI unit of time?
    A
    Minute
    B
    Hour
    C
    Second
    6. What is defined as the fixed numerical value of the caesium frequency?
    A
    Second
    B
    Kilogram
    C
    Ampere
    7. How is the hertz (Hz) defined in relation to the second?
    A
    1 Hz = 1/60 s
    B
    1 Hz = 1 s^-1
    C
    1 Hz = 1/3600 s
    8. What is the SI unit of electric current?
    A
    Watt
    B
    Ohm
    C
    Ampere
    9. Which is defined as fixed numerical value of the elementary charge?
    A
    Ampere
    B
    Hertz
    C
    mole
    10. How is the coulomb (C) defined in relation to the ampere?
    A
    1 C = 1/60 A
    B
    1 C = 1/3600 A
    C
    1 C = 1 A
    11. What is the SI unit of thermodynamic temperature?
    A
    Kelvin
    B
    Celsius
    C
    Fahrenheit
    12. The definition of the kelvin is based on the fixed numerical value of which physical constant?
    A
    The Boltzmann constant
    B
    The Planck constant
    C
    The Avogadro constant
    13. What is the SI unit of amount of substance?
    A
    Liter
    B
    Kilogram
    C
    Mole
    14. What is the fixed numerical value of the Avogadro constant?
    A
    6.02214076 × 10^23
    B
    6.02214076×10^22
    C
    6.02214076 × 10^24
    15. The Avogadro constant is also known as the
    A
    Molar number
    B
    Molar constant
    C
    Avogadro number