Mechanical Energy 2024

Multiple Choice

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

Multiple Choice

As mass decreased, kinetic energy ________________.

• increases

• stays the same

• decreases

• doubles

Multiple Choice

Moving a book to a lower shelf ____________ the potential energy.

• decreases

• increases

• triples

• doubles

Multiple Choice

A blimp circling above a sporting event will have what kind of energy?

• kinetic only

• kinetic and elastic potential

• potential only

• kinetic and gravitational potential

Multiple Choice

According to the law of conservation of energy, energy cannot be _____________________________________.

• destroyed.

• conserved.

• changed ever.

• created nor destroyed.

Multiple Choice

Work ____________ energy.

• creates

• transfers

• destroys

• subdues

Multiple Choice

Which equation is correct?

• Mechanical energy=kinetic energy-potential energy

• mechanical energy=potential energy -kinetic energy

• mechanical energy= kinetic energy + potential energy

• Mechancal energy= kinetic energy x potential energy

Multiple Choice

What variable would you change to increase the kinetic energy of the rolling marble?

• Increase the length of the ramp

• Increase the height of the ramp

• Decrease the length of the ramp

• Decrease the height of the ramp

Multiple Choice

According to the picture, how would the gravitational potential energy of the car change if its mass was doubled?

• The gravitational potential energy would be doubled

• The gravitational potential energy would stay the same

• The gravitational potential energy would be cut in half

• The gravitational potential energy would be increased by 750

Multiple Choice

Students are investigating changes from potential to kinetic energy by rolling a marble down a ramp made by propping up a plastic ruler on a book and letting it roll down.

Which of the following will change the potential energy the marble starts with?

• Adding more books beneath the ruler to increase its height

• Pushing the marble down the ramp

• Switching the plastic ruler with a wooden one

• Replacing the marble with a rock

Multiple Choice

The diagram below shows a swinging pendulum ball.

Which point represents the pendulum's greatest potential energy?

• 1

• 2

• 3

• 4

Multiple Choice

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

Multiple Choice

Which passenger has the most potential energy?

• A

• B

• C

• D

Multiple Choice

Which cylinder has more kinetic energy?

• Hollow cylinder

• Solid cylinder

• Kinetic energy is the same

Multiple Choice

Which skier has more mechanical energy?

• Skier 1

• Skier 2

• Neither, they don't have any mechanical energy

• The mechanical energy is the same since they're not moving.

Multiple Choice

What is the transformation of mechanical energy in a ball when it is thrown straight up and then comes back down?

• Potential energy as the ball is thrown, kinetic as it is at the top, potential as it returns.

• Kinetic energy as the ball is thrown, potential as it is at the top, potential as it returns.

• Kinetic energy as the ball is thrown, potential as it is at the top, kinetic as it returns.

Multiple Choice

Is mechanical energy conserved as a playground swing moves?

• Yes

• No

Multiple Select

What are the two forms of energy that make up mechanical energy?

• Chemical

• Potential

• Kinetic

• Electrical

Multiple Choice

What can you determine about total energy from this graph?

• The pendulum loses mechanical energy

• Kinetic energy stays constant throughout the graph

• Total energy is conserved throughout the graph

• Potential energy stays constant throughout the graph

Multiple Choice

The energy associated with BOTH the motion and position of an object is

• A. Electrical Energy

• B. Mechanical Energy

• C. Light Energy

• D. Sound Energy