Energy Unit Assessment (2020)

A large demolition machine is used to knock down a building. Which wrecking ball’s potential energy contributes to the mechanical energy that is needed to knock down a building?

• #4

• #3

• #2

• #1

Tags

NGSS.MS-PS3-2

True or False: This rock in its current state is an example of potential energy.

• True

• False

Tags

NGSS.MS-PS3-2

A ball fell to the floor after rolling off a table. What was true of the ball’s energy as it fell?

• The ball’s potential energy decreased as it fell, so its kinetic energy must have increased to conserve mechanical energy.

• The ball’s potential energy decreased as it fell, so its kinetic energy must have decreased to conserve mechanical energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A child picks a ball up from the ground, then places it on a table. True or False: The ball has both potential and kinetic energy.

• True

• False

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A toy car travels up a ramp. The car’s speed decreases as it moves up the ramp. What happens to the car’s kinetic energy and potential energy as it travels up the ramp?

• The car’s kinetic energy and potential energy increase.

• The car’s kinetic energy and potential energy decrease.

• The car’s kinetic energy increases, and its potential energy decreases.

• The car’s potential energy increases, and its kinetic energy decreases.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

The diagram below shows a swinging pendulum ball.

Which point represents the pendulum's greatest potential energy?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS3-2

The diagram below shows a car on a roller coaster with four labeled locations.

Between what two locations does the car’s kinetic energy transform into potential energy?

• W and X

• W and Y

• X and Y

• Y and Z

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

True or False: This circuit would conduct electricity.

• False because it is not complete.

• True because it is complete.

Why doesn't light 1 work?

• It isn't a complete circuit.

• The battery doesn't work.

• It is a complete circuit.

Tags

NGSS.MS-PS3-5

A warm object touching a cool object represents what type of energy transfer?

• chemical

• thermal

• electrical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4