The girl in the picture is at the highest point in swinging and starts to come down. Which statement best describes the changes in energy as she begins to descend?

Question

(1 point)
Responses

Kinetic energy is increasing, and potential energy is decreasing.
Kinetic energy is increasing, and potential energy is decreasing.

Potential energy is increasing, and kinetic energy is decreasing.
Potential energy is increasing, and kinetic energy is decreasing.

Kinetic and potential energy are decreasing.
Kinetic and potential energy are decreasing.

Kinetic and potential energy are increasing.
Kinetic and potential energy are increasing.
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Answer 1

The correct statement is:

Kinetic energy is increasing, and potential energy is decreasing.

As the girl swings down from the highest point, her potential energy decreases due to a lower height, while her kinetic energy increases as she accelerates due to gravity.

Answer 2

Question
A person is riding a skateboard on a U-shaped ramp. At which point does the person have the greatest potential energy?(1 point)
Responses

in the middle of the ramp at its lowest point in the U
in the middle of the ramp at its lowest point in the U

on the other side of the ramp as the person is coming back up
on the other side of the ramp as the person is coming back up

on the first part of the ramp as the person is moving down the side
on the first part of the ramp as the person is moving down the side

at the top of the ramp before they begin moving down into the ramp
at the top of the ramp before they begin moving down into the ramp

Answer 3

The correct response is:

at the top of the ramp before they begin moving down into the ramp.

This is because potential energy is highest when an object is at its maximum height. As the skateboarder descends the ramp, potential energy decreases while kinetic energy increases.

Answer 4

Use the picture to answer the question.

An illustration depicts a cyclist riding a bike along a hill. The end on the right where the cyclist moves upward is labeled C, the top of the hill is labeled B, and the end on the left where the cyclist moves downward is labeled A.

As the bicyclist rides from right to left, at which of the three points, if any, is the bicyclist’s potential energy increasing?

(1 point)
Responses

The potential energy is always decreasing because the bicyclist continues to move forward.
The potential energy is always decreasing because the bicyclist continues to move forward.

The potential energy is increasing at point A because the bicyclist is moving fastest at that point.
The potential energy is increasing at point A because the bicyclist is moving fastest at that point.

The potential energy is increasing at point C because the bicyclist is increasing in elevation at that point.
The potential energy is increasing at point C because the bicyclist is increasing in elevation at that point.

The potential energy is increasing at point B because the bicyclist is highest there.
The potential energy is increasing at point B because the bicyclist is highest there.
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Answer 5

The correct response is:

The potential energy is increasing at point C because the bicyclist is increasing in elevation at that point.

As the bicyclist moves from point A (downhill) to point C (uphill), their elevation is increasing, which causes their potential energy to increase.

Answer 6

Question
If a monkey drops a banana off of a cliff, where are the potential and kinetic energies of the banana equal?(1 point)
Responses

halfway down
halfway down

at the bottom
at the bottom

at the top
at the top

a quarter of the way down

Answer 7

The correct response is:

halfway down.

At that point, the potential energy (due to height) and the kinetic energy (due to motion) will be equal. As the banana falls, potential energy converts to kinetic energy, and when it is halfway down, it will have lost half of its potential energy and gained an equal amount of kinetic energy.