Potential Energy

Let's practice Kinetic energy first:

What is the kinetic energy of a 4kg bowling ball that is moving 9m/s?

Follow these steps:

Formula

Identify variables

Substitute the variables

Solve for the exponent

Find the solution

Remember to add "j"

What is the kinetic energy of a 7kg dog running 13m/s?

Follow these steps:

Formula

Identify variables

Substitute the variables

Find the solution

Remember to add "j"

Label the parts of the Potential Energy equation

Watch the Edio video on Page 1

The Falcon's mass is 0.9kg and it soars above the earth's surface at 200m. Remembering that gravity is 9.8 m/s, what is the potential energy of the falcon?

Remember:

Formula

Variables

Substitution

Solution

Also the units are "j" for joules, just like in the KE formula.

What is the potential energy of a 90kg skydiver in a plane 500m above Earth's surface? Gravity = 9.8m/s

Remember:

Formula

Variables

Substitution

Solution

Also the units are "j" for joules, just like in the KE formula.

You've got this! Try this one without me: What is the potential energy of a 0.5kg book sitting on top of a 1.5m shelf? - Don't forget about Gravity

Remember:

Formula

Variables

Substitution

Solution

Also the units are "j" for joules, just like in the KE formula.