# Mini-Quiz: Energy from Gravity for Objects Projected Downward

by Ron Kurtus

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

1. What happens to the potentail energy when an object hits the ground?

It becomes infinity

It does not vary

It becomes zero

2. Why does an object have an inital KE when you project it downward?

It has an initial velocity that causes the KE

No one is certain why that happens

The initial KE helps to compensate a lack of PE

3. What happens at the maximum height when an object is projected upward?

The KE equals the PE

The KE becomes zero and the PE relates to that height

The KE and the PE interchange values

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

### Websites

Gravity and Potential Energy - University of Alaska

Potential Energy Calculator

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

Gravity Resources

### Books

(Notice: The School for Champions may earn commissions from book purchases)

## 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:
www.school-for-champions.com/science/
mini-quiz_gravity_energy_projected_downward.htm

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

## Gravitation

### 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.

### 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.