Kinetic and Potential Energy Concepts

Potential energy depends on:

• Elastics

• Mass and force

• Motion

• Position and shape

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NGSS.MS-PS3-2

Any moving object has ______________

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

When you do work on an object, some of your ___________ is transferred to the object.

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NGSS.MS-PS3-5

While actively going down a ramp, how much kinetic energy do you have?

• None

• How ever many feet of ramp are left

• However much potential energy you lost

• The same amount of potential energy you started with

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NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the formula for calculating work?

• GPE = mgh

• W = v final - v initial / t

• W = Fd

• W = d/t

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NGSS.MS-PS3-5

What does the law of conservation of energy state?

• Energy can be transformed, but not destroyed or created.

• Energy can be created or destroyed.

• Energy can only be created, but not destroyed.

• Energy can be destroyed but not created.

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NGSS.HS-PS3-4

In a roller coaster, as the car moves down the first hill, what happens to its potential energy?

• It is destroyed.

• It is converted into kinetic energy.

• It becomes thermal energy.

• It remains unchanged.

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NGSS.MS-PS3-1

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NGSS.MS-PS3-5

Which of the following is true according to the law of conservation of energy?

• Energy is always lost in the form of heat.

• Energy can disappear from a system.

• Energy is created and used only by living organisms.

• The total amount of energy in a closed system remains constant.

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

Why is energy never "lost" in a system, according to the law of conservation of energy?

• It moves from one object to another.

• It disappears as heat.

• It is stored in the system forever.

• It is only transformed into another form.

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NGSS.MS-PS3-5

What happens to the mechanical energy in a system when friction is present?

• It is destroyed.

• It is converted into heat energy.

• It is converted into light energy.

• It is transformed into electrical energy.

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NGSS.MS-PS3-5