Potential Energy

Potential Energy- Pgs 26-27

Class Announcements

Math Response

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

Find the solution

Remember to add "j"

Type answer here

Correct Answer: 162j

Deg^°

Rad

Math Response

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"

Type answer here

Correct Answer: 591.5j

Deg^°

Rad

Labelling

Label the parts of the Potential Energy equation

Drag labels to their correct position on the image

mass= kg

9.8 m/s

height= cm or m

Potential Energy

Potential Energy- Stored energy

Different types include-
Energy of Position- an object off the ground has energy from being higher

Chemical Energy- Energy stored in molecules

Batteries- Device that converts chemical energy into electrical energy

​

​Potential Energy

Math Response

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.

Type answer here

Correct Answer: 1764j

Deg^°

Rad

Math Response

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.

Type answer here

Correct Answer: 441000j

Deg^°

Rad

Math Response

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.

Type answer here

Correct Answer: 7.4j

Deg^°

Rad

Word Cloud

The quiz about this is Monday. Write 1 or 2 words that describes how you are feeling about the quiz.

Drag and Drop

An example of ​

Placeholder

includes an apple.

Plugging in a phone is an example of a​

Placeholder

.

​

Placeholder

is when a child is sitting at the top of a slide.

Drag these tiles and drop them in the correct blank above

chemical energy

battery

Energy of position

Poll

While you vote- watch the video in Edio on page 3

Would you ever skydive? (Mrs. Cool is a definite NO! on this one)

• Yes when I am older!

• No way- feet on the ground

• Hmm I don't know...

• Ha! I've already been!