Unit 4 Test Review

As an object falls from a high shelf how does it energy transform?

• It transforms from potential to kinetic.

• It transform from kinetic to potential.

• It transforms from gravitational to chemical.

• It transforms from mechanical to gravitational.

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NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Draw something that is considered to have chemical energy.

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NGSS.MS-LS1-6

NGSS.MS-PS1-5

What two things do you need to find the density of an object?

Drag and drop each label to the appropriate description of the line it represents on a speed graph.

a straight horizontal line ​ ​ ​ (a)  

A line traveling from the left hand corner to the right upper corner of the graph ​ (b)  

a curved line ​ (c)  

• the object is not moving
• the object is traveling at a constant speed
• The object is accelerating

Find the speed of an object in meters per second.

5,000 meters

10 minutes

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NGSS.MS-PS3-1

What is the purpose of a solar panel?

• to transfer radiant energy to electrical energy

• transfer electrical energy to radiant energy

• to create radiant energy

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NGSS.HS-PS3-3

When you run the bases in baseball your body transfers ​ (a)   to ​ (b)   .

• chemical energy
• mechanical energy

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NGSS.MS-PS3-5

If you roll a small ball and a larger ball with more mass down a hill, which one will travel the fastest?

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NGSS.MS-PS2-4

NGSS.MS-PS3-1

Draw a picture of where you would have the most potential energy when you ride your bike on a hill.

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When fossil fuel are burned they....

• They provide us with clean energy.

• They create energy wit no environmental risks.

• they add pollutants like heat and carbon dioxides to the air.