# Mini-Quiz: Relationship Between Mass, Weight and Gravity

by Ron Kurtus (updated 29 May 2023)

Take this Mini-Quiz to check your understanding of the lesson material.

1. What are the units for the force of gravity?

Gravity is unitless

32 ft/s2

Newton or pound-force

2. What is the relationship between mass, weight, and gravity?

Mass equals weight times gravity

W = mg

They are all the same thing

3. Why does an object weigh less on the Moon?

It actually weighs more on the Moon

It depends if you use the SI or British system

The force of gravity on the Moon is less than on the Earth

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.

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