Mechanical Energy and Work

Where does the pendulum have the greatest kinetic energy?

• A

• B

• C

• D

• E

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is the mechanical energy of the system? (ignore friction)

• 0J

• 10,000J

• 20,000J

• can not be determined

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What is the kinetic energy at position X? (ignore friction)

• 0J

• 1,000J

• 19,000J

• can not be determined

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

This drawing illustrates which of the following?

• Conservation of Mechanical Energy

• Conservation of Mass

• Conservation of Momentum

• Universal Gravitation

Tags

NGSS.MS-PS3-1

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If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?

• 272 m

• 17 m

• 4.05 m

• 272 cm 

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NGSS.HS-PS3-1

An object of mass 6.8 kg is lifted to a height of 1.3 m. How much work is done on the object?

• 8.84 J

• 8.1 J

• 5.23 J

• No work is done.

Tags

NGSS.MS-PS3-2

The roller coaster car has a mass of 500 kg. It is pulled from position 1 to 2 (30 m) by a motor. At the top of the ride the vertical distance top to bottom is 20 m. The motor pulls the car with a 4000 N force. Calculate the work done getting the car to the top of the ride.

• 100 000J

• 120 000J

• 800 000J

• 90 000J

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NGSS.MS-PS2-1

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What are the two types of Mechanical Energy? (ME)

• Kinetic and Potential Energy

• Kinetic and Nuclear Energy

• Potential and Chemical Energy

• Thermal and Kinetic Energy

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NGSS.MS-PS3-1

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What is the sum of kinetic energy and potential energy of a system?

• mechanical energy

• electrical energy

• moving energy

• nuclear energy

Tags

NGSS.MS-PS3-4

Where does the pendulum have the least amount of potential energy?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS3-2