Unit 3 Review

As a roller coaster goes downhill

• Kinetic energy is converted to potential energy

• Potential energy is converted to kinetic energy

• Electrical energy to potential energy

• Potential energy to electrical energy

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

Energy is the ability to do

• Nothing

• Power

• Work

• Energy

Select ALL the statements that best reflect what is occurring as the rock moves up the hill

• Potential energy is decreasing

• Kinetic energy is increasing

• Kinetic energy is decreasing

• Potential energy is increasing

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NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

You get to ride a thriller water slide (as depicted below). Each letter represents a location along the ride. Between which two points would you predict the smallest change in energy?

• A to B

• B to C

• B to D

• D to E

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NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following represents the position in which the roller coaster has the maximum potential energy?

• A

• B

• C

• D

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NGSS.MS-PS3-2

Which point on the pendulum's swing represents the minimum potential energy?

• A

• B

• C

• D

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NGSS.MS-PS3-2

A group of students is exploring how different variables affect the kinetic energy of a cart. They set up four different experiments. One end of the ramp rests on 1 to 3 blocks and the cart carries a load of one to three 20g marbles. For each test, they release the cart at the top of the ramp and measure its speed at the bottom of the ramp.

Which experiment(s) best explores the relationship between mass and kinetic energy? (remember you can only change 1 thing) **Look at the marbles**

• 
• 
• 
• 

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NGSS.MS-PS2-2

NGSS.MS-PS3-1

The data table below shows the speed of each car recorded at each second. Based on the data, which car(s) traveled at a constant speed? **Select more than one**

• Car A

• Car B

• Car C

• Car D

A roller coaster is traveling 1 m/s at the top of the track. At the bottom of the track, 3 seconds later, it is traveling 36 m/s. What is the average acceleration?

• 11.66 m/s²

• -7 m/s²

• 12 m/s

• 12 m/s²

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Alexis walked 1.5 km to her house in 0.5 hours. What is Alexis' speed?

• 3 km/hr

• .75 km/hr

• 0.3 km/hr

• Fast

Tags

NGSS.MS-PS3-1