Physics Energy Review

Which position has the most potential energy?

• A

• B

• C

• G

• H

Tags

NGSS.MS-PS3-2

Which position has the most kinetic energy?

• A

• B

• D

• E

• F

Tags

NGSS.HS-PS3-2

A pendulum is released from point C. Which statement is correct as it swings from C to A?

• The PE increases and KE decreases

• The KE increases and PE decreases.

• The PE is maximum at A.

• The KE is maximum at C and B.

Tags

NGSS.HS-PS3-1

When my velocity triples, my kinetic energy increases by

• 9 times

• 2 times

• 5 times

• 0.5 times

What is the equation for kinetic energy?

• K=(m)(h)(10)

• K=1/2(k)(x)^2

• K=1/2(m)(v)

• K=1/2(m)(v)^2

A truck has 2 times the mass of yet another truck, and is moving at the same velocity. If K₁ and K₂ refer to the two trucks respectively, it is correct to say that

• K₁=4K₂

• K₁=3K₂

• K₁₌2K₂

• K₁₌K₂

Tags

NGSS.HS-PS3-2

Which of the following equations is the correct formula for power?

• P=W/t

• P=N/t

• P=F*t

• P=E/t

How fast must a 5-kg cat have to run in order to have a kinetic energy of 170 J?

• V= 1.2/s

• V=20m/s

• V=9.2m/s

• V=8.2m/s

Tags

NGSS.HS-PS3-1

You do work against gravity when you walk up some stairs.

• True

• False

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Which are correct units for work?

• N x s

• N x m

• J

• J/s

• W