TEST - Unit 3 Energy

What is the scientific definition of energy?

• The rate at which work is done

• The ability to do work or cause change

• The amount of matter in an object

• The force applied to an object

Tags

SC.SCI.7-PS3-2.PS3.A

Energy cannot be ​ (a)   or ​ (b)   just ​ (c)   .

• created
• destroyed
• transformed

Tags

NGSS.MS-PS3-5

Which of the following best describes the relationship between energy and force?

• Energy is always greater than force

• Force can transfer energy to an object

• Energy and force are the same thing

• Force cannot affect energy

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SC.SCI.7-PS3-2.PS3.C

What is the proper scientific term for the energy of motion?

• Potential energy

• Kinetic energy

• Thermal energy

• Chemical energy

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SC.SCI.7.PS3.A.1

Which equation correctly represents kinetic energy?

KE - Kinetic Energy
m - mass

s - speed

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SC.SCI.7.PS3.A.1

A ball is dropped from a height. Which type of energy is being converted as it falls?

• Kinetic energy to potential energy

• Potential energy to kinetic energy

• Chemical energy to thermal energy

• Thermal energy to kinetic energy

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SC.SCI.7-PS3-5.PS3.B

Which of the following is an example of energy being transformed from one form to another?

Select ALL that apply.

• A car parked in a garage

• A battery powering a flashlight

• A rock lying on the ground

• A closed book on a shelf

• A runner eating a protein bar

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

Toasting bread in a toaster would be ​ an example of transforming ​ (a)   energy to ​ (b)   ​ energy, so that when you eat the toast your body can convert​ (c)   energy into ​ (d)   energy.

• electrical
• heat
• chemical
• mechanical
• electromagnetic
• nuclear

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

A student claims that energy is lost when a ball stops moving. Use evidence to explain whether this claim is correct or incorrect.

• The claim is correct because energy disappears when motion stops.

• The claim is incorrect because energy is transformed, not lost, often into heat or sound.

• The claim is correct because energy is only present in moving objects.

• The claim is incorrect because energy is destroyed when objects stop.

• The claim is incorrect because the energy was not lost, but just used up.

Tags

SC.SCI.7-PS3-5.PS3.B

Click on where the rollercoaster has the MOST potential energy.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4