# Mini-Quiz: Gravity Displacement Equations for Falling Objects

by Ron Kurtus (revised 9 Jun 2011)

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

1. If an object is falling at a rate of 9.8 m/s, how far has it fallen?

19.6 meters

9.8 meters

4.9 meters

2. If an object falls for 3 seconds, how many feet has it fallen?

144 feet

144 meters

16 feet

3. If the velocity is 50 miles per hour (mph), what do you do to find the displacement the object has fallen?

You can't solve the problem

Convert mph to ft/s

Just use 50 mph in the equation

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.

Prove yourself to be the best

## Resources and references

Ron Kurtus' Credentials

### Websites

Falling Bodies - Physics Hypertextbook

Equations for a falling body - Wikipedia

Gravity Calculations - Earth - Calculator

Kinematic Equations and Free Fall - Physics Classroom

Gravity Resources

### Books

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www.school-for-champions.com/science/
mini-quiz_gravity_equations_falling_displacement.htm

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