Physics Unit Test

A roller coaster cart gets pulled up to its highest peak and then goes down the track and eventually comes to a stop. Which best describes the transfer of energy?

• Kinetic energy is converted to potential energy and is converted into thermal energy due to rolling friction

• Potential Energy is converted into Kinetic energy and the cart comes to a stop due to gravity

• Kinetic Energy is converted into Thermal Energy due to sliding friction

• Potential Energy is converted into Kinetic Energy which is converted to Thermal Energy due to rolling friction

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NGSS.MS-PS3-2

NGSS.MS-PS3-4

An object has the least amount of Potential Energy at which point in the image?

• A

• B

• F

• E

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NGSS.MS-PS3-2

An object in motion has the most amount of Kinetic Energy at which point in the image?

• A

• B

• D

• G

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NGSS.HS-PS3-2

A Decrease in Potential Energy means...

• An object is speeding up

• An object is gaining height

• An object is slowing down

• An object is being stretched

The Bar Graph shows the energy of the skater. Which point on the ramp best represents where she should be?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

Two sticks are rubbed together to make fire. Which best describes the transfer of energy?

• Potential Energy is transferred to Thermal Energy through friction caused by rubbing the sticks together

• Thermal Energy is created as the potential energy increases

• Thermal Energy is transferred to Potential energy through friction caused by rubbing the sticks together

• Kinetic Energy is transferred to Thermal Energy through friction caused by rubbing the sticks together

As the skateboarder moves from the top of one side of the ramp to the other, if NO FRICTION IS PRESENT, the total of its gravitational potential energy and its kinetic energy...

• Decreases Only

• Remains The Same

• Decreases and then Increases

• Increases and then Decreases

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is the formula to calculate Kinetic Energy?

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NGSS.HS-PS3-1

NGSS.HS-PS3-2

How many joules of work are done against a cart when a force of 50 N pushes it 1 kilometer away?

• 7000 J
• 5000 J
• 5500 J
• 6600 J

In 1985 in San Antonio, Texas, an entire hotel building was moved several blocks on 36 dollies. The mass of the building was about 1.45 × 106 kg. If 1.0 x 10⁶ J of work was done with the applied force of 3.0 x 10⁴ N, how far was the building moved?

• 3.33 x 10¹ m
• 6.66 x 10³ m
• 4.5 x 10² m
• 3.2 x 10^-1 m 

Tags

NGSS.HS-PS2-1