The answers for the four questions are as follows:
1. The girl's potential energy is decreasing, and her kinetic energy is increasing.
2. The person has the greatest potential energy at the top of the ramp before they begin moving down into the ramp.
3. The potential energy of the bicyclist is increasing at point C because the bicyclist is increasing in elevation at that point.
4. The potential and kinetic energies of the banana are equal at the bottom of the cliff.
Potential Energy of a System Quick Check
Science 8 Q1 / Energy of Motion
Use the picture to answer the question.
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?
(1 point)
Responses
Kinetic energy is increasing, and potential energy is decreasing.
Kinetic and potential energy are decreasing.
Kinetic and potential energy are increasing.
Potential energy is increasing, and kinetic energy is decreasing.
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
on the other side of the ramp as the person is coming back up
at the top of the ramp before they begin moving down into the ramp
on the first part of the ramp as the person is moving down the side
Use the picture to answer the question.
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 increasing at point A because the bicyclist is moving fastest at that point.
The potential energy is always decreasing because the bicyclist continues to move forward.
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.
If a monkey drops a banana off of a cliff, where are the potential and kinetic energies of the banana equal.(1 point)
Responses
a quarter of the way down
at the bottom
half way down
at the top
what is the answer to all for 4 questions
3 answers
tell what the correct answer is to all 4 questions please
1. The correct answer is: Kinetic energy is increasing, and potential energy is decreasing.
2. The correct answer is: at the top of the ramp before they begin moving down into the ramp.
3. The correct answer is: The potential energy is increasing at point C because the bicyclist is increasing in elevation at that point.
4. The correct answer is: at the bottom.
2. The correct answer is: at the top of the ramp before they begin moving down into the ramp.
3. The correct answer is: The potential energy is increasing at point C because the bicyclist is increasing in elevation at that point.
4. The correct answer is: at the bottom.
1 answer