List of Topics

SfC Home > Physics > Gravity >


Mini-Quiz: Energy from Gravity of Falling Objects

by Ron Kurtus (revised 15 February 2016)

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

1. What is the potential energy of an object at some height "h" above the ground?

PE = mv2/2


PE = mgh

2. It the object is not moving, what is its kinetic energy?

KE = 0

It depends on its height

KE = mgh

3. What is the final velocity when a dropped object hits the ground?

vf = 0

vf = √(2gh)

vf = PE + KE

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.

Be alert for new opportunities

Resources and references

Ron Kurtus' Credentials


Gravity and Potential Energy - University of Alaska

Potential Energy Calculator

Gravity and Energy - Exploring the interplay of gravity and mass-energy

Gravity Resources


Top-rated books on Simple Gravity Science

Top-rated books on Advanced Gravity Physics

Questions and comments

Do you have any questions, comments, or opinions on this subject? If so, send an email with your feedback. I will try to get back to you as soon as possible.

Share this page

Click on a button to bookmark or share this page through Twitter, Facebook, email, or other services:


Students and researchers

The Web address of this page is:

Please include it as a link on your website or as a reference in your report, document, or thesis.

Copyright © Restrictions

Where are you now?

School for Champions

Gravity topics

Mini-Quiz: Energy from Gravity of Falling Objects

Gravity and Gravitation

Gravity topics



Derivations of equations

Falling objects

Projected downward

Projected upward

Gravity and energy

Gravity and work

Gravity applications


Let's make the world a better place

Be the best that you can be.

Use your knowledge and skills to help others succeed.

Don't be wasteful; protect our environment.

You CAN influence the world.

Live Your Life as a Champion:

Take care of your health

Seek knowledge and gain skills

Do excellent work

Be valuable to others

Have utmost character

Be a Champion!

The School for Champions helps you become the type of person who can be called a Champion.