PE and KE

Kinetic and Potential Energy

by Mr. Ibrahim

Energy

• Energy is the ability to do work

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• Work is being done whenever a force moves an object in the same direction as the for being applied

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Types of Energy

-There are two types of energy​ Potential and Kinetic

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- Energy changes from potential to kinetic, but is never destroyed or created

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​Kinetic Energy

KE is the energy of motion

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​The amount of Kinetic energy is dependent on the mass and speed of an object.

​Potential Energy

​Stored energy

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The energy of position

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The amount of energy contained in an object at rest

Potential and Kinetic Energy

Notice that as the kinetic energy increases the potential energy decrease.

When the coaster goes back up the hill the energy is converted back to potential energy.

5.2 Kinetic and Potential Energy

by: Ms. Alicia

Multiple Choice

The amount of force required to move an object is called

• mechanical energy

• work

• kinetic energy

• potential energy

Multiple Choice

Energy due to motion is ____________ energy. 

• Potential 
• Energy
• Kinetic
• Friction

Multiple Choice

Kinetic energy depends on

• mass and height

• height and speed

• mass and speed

• mass and force

Multiple Choice

The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• all of the above 

Multiple Choice

__________ is stored energy. 

• Potential
• Kinetic
• None of the above 
• All of the above 

Multiple Choice

Potential energy depends on

• mass and height

• height and speed

• mass and speed

• height and force

Multiple Choice

What kind of energy is in a rock at the edge of a cliff?

• Potential
• Kinetic

Multiple Choice

At which point does the ball has the greatest gravitational potential energy (GPE)?

• A

• G

• D

• C

Multiple Choice

Where would this tossed baseball have the greatest amount of kinetic energy?

• point W

• point X

• point y

• point z

Multiple Choice

Kinetic or potential?

• Kinetic because the roller coaster is moving

• Potential because the roller coaster is setting still

Multiple Choice

Kinetic or potential?

• Kinetic because the man is moving.

• Potential because the man is sitting.

Multiple Choice

Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.

• 18 J
• 36 J
• 12 J
• 6 J

Multiple Choice

A moving 10 kilogram object has 20 Joules of kinetic energy. What is its velocity?

• 2 m/s
• 4 m/s
• 200 m/s
• 10 m/s

Multiple Choice

What is the mass of a moving object that has 100 Joules of kinetic energy and moves at a velocity of 2 m/s?

• 50 kg
• 200 kg
• 25 kg
• 100 kg

Multiple Choice

A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?

• 43982.4 J
• 63982.3 J
• 43962.4 J
• 83942.4 J

Multiple Choice

An Olympic high jumper, with a mass of 82 kg, has a maximum gravitational potential energy of 1970 J. How high was the jump?

Let g = 9.8N/kg

• 24 m

• 161,540 m

• 2.5 m

• 201 m

Match

Match the following terms to the correct definition

• Kinetic Energy

• Potential Energy

• Work

• Force

Energy in motion

Stored energy

Force that causes motion

A push or pull

• Energy in motion

• Stored energy

• Force that causes motion

• A push or pull

Multiple Choice

When a pendulum swings, at which point is potential energy at its greatest?

• 1
• 2
• 3
• 4

Multiple Choice

• I

• II

• III

• IV

Multiple Choice

at which point the potential energy is greatest?

• A

• B

• C

• D

Multiple Select

Joules (J) is the unit for

• Potential Energy

• Kinetic Energy

• Energy

• Gravity

Multiple Choice

Choose the image below that shows potential energy decreasing then increasing if following the arrows from left to right?

Multiple Choice

1. A student is investigating the motion of a pendulum. The student holds the Bob in Point A and then releases it. Which statement is correct about the energy of the Bob?

• The KE of the Bob is greatest at Point A.

• KE changes to PE as the Bob moves from D to E.

• The PE of the Bob is greatest at Point C.

• PE changes to KE as the Bob moves from C to D.