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The International System of Units-Nurture
Author :
Pifly PiFly
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