SI Units and Prefixes Quiz

The SI base unit for mass is:

• Gram (g)

• Kilogram (kg)

• Pound (lb)

• Newton (N)

The SI base unit for temperature is:

• Celsius (°C)

• Fahrenheit (°F)

• Kelvin (K)

• Joule (J)

Which of the following is the SI base unit for electric current?

• Watt (W)

• Ampere (A)

• Coulomb (C)

• Volt (V)

Which unit is used to measure the luminous intensity of a light source in the SI system?

• Lux (lx)

• Candela (cd)

• Lumen (lm)

• Hertz (Hz)

What number does the prefix "kilo-" represent?

• 10

• 100

• 1,000

• 10,000

What is the meaning of the prefix "milli-"?

• One hundredth (0.01)

• One tenth (0.1)

• One thousandth (0.001)

• One millionth (0.000,001)

How many meters are in 1 megameter (Mm)?

• 1,000

• 100,000

• 1,000,000

• 10,000,000

Which prefix represents one billion times the base unit?

• Hecto-

• Giga-

• Micro-

• Mega-

The prefix “centi-” corresponds to which factor?

Which SI prefix means 10⁶ (one million)?

• Giga-

• Mega-

• Kilo-

• Micro-