Kinetic and Potential Energy

During an ________________ collision in a closed system, kinetic energy will be conserved.

• elastic

• inelastic

An object experiences free fall and tumbles from a high shelf down to the floor, experiencing...

• an increase in potential energy

• an decrease in potential energy

• an decrease in kinetic energy

• no change in kinetic energy

Tags

NGSS.HS-PS2-4

A man pushes on a grocery cart, increasing the cart's velocity. He....

• did no work to the cart

• did negative work to the cart

• did positive work to the cart

Tags

NGSS.HS-PS2-1

A car runs into a barrier. The barrier stops the car and brings it to a rest. The barrier

• did no work to the car

• did positive work on the car

• did negative work on the car

A ball is launched into the air. On the way up, the ball experiences

• increase in PE & decrease in KE

• increase in PE & increase in KE

• decrease in PE & decrease in KE

• decrease in PE & increase in KE

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A bike slows down as the rider uses the brakes, and the velocity changes from 5 m/s to 2 m/s. The overall change in kinetic energy

• is positive

• is negative

• does not change

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The total mechanical energy of an ideal, closed system

• is constant

• decreases over time

• is equal to the sum of KE and PE

• is constant AND equal to the sum of KE and PE

The location with the most KE out of the three listed below is

• A

• B

• C

The location with the most PE out of the three listed below is

• A

• B

• C

Tags

NGSS.HS-PS2-4

The unit for measuring KE or PE is

• the joule

• equivalent to 1 N x 1 m

• the same unit as work

• all of the above

Tags

NGSS.HS-PS3-2