Total Energy

What is the Total Energy of the system?

• 14 J

• 12 J

• 6 J

• 8 J

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A 100 kg. skier starts at rest at the top of a 30. m hill. What is her total mechanical energy half-way down?

• 30,000 J

• 20,000 J.

• 15,000 J

• 60,000 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A 100 kg. skier starts at rest at the top of a 30. m hill. What is her total mechanical energy?

• 30,000 J

• 20,000 J.

• 10,000 J

• 40,000 J

Tags

NGSS.MS-PS3-2

If a marble was released from rest at a height of 2.3m and had a mass of 0.3kg, how much mechanical energy did it have at the top of the ramp?

• 2.3 J

• 0.23 J

• 6.9 J

• 5.2 J

Tags

NGSS.MS-PS3-2

What is the kinetic energy at W, where the car is stopped?

• 0J

• 10,000J

• 20,000J

• can not be determined

Tags

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

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

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-PS3-4

At point 2 , what is the ME?

• 150 J

• 490 J

• 1470 J

• 1960 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

At point 1, what is the mechanical energy (ME)?

• 0 J

• 400 J

• 980 J

• 1960 J

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

A 5 kg object is lifted to a height of 10 meters. What is the total potential energy of the object at this height?

Tags

NGSS.MS-PS3-2