Mechanical Energy 2024

Presentation

•

Science

•

7th Grade

•

Easy

•

NGSS

MS-PS3-2, MS-PS3-1, MS-PS3-5

Standards-aligned

Kelly Callahan

Used 5+ times

FREE Resource

2 Slides • 20 Questions

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?

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?

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

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

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