An object that is stationary has potential energy. When the object is pushed, that energy transfers to kinetic energy. Throughout this energy transfer, the object's total energy stays the same.
Complete the following statements with the correct words.(1 point)
An object that is stationary has (response area) energy. When the object is pushed, that energy transfers to (response area) energy. Throughout this energy transfer, the object's total energy (response area).
1st response
maximum
no
potential
kinetic
2nd response
kinetic maximum
total
potential
3rd response
decreases
increases
stays the same
11 answers
When a baseball is at rest and then is thrown, what is the relationship between the ball’s potential and kinetic energy?(1 point)
Responses
As the ball’s potential energy increases, its kinetic energy increases.
As the ball’s potential energy increases, its kinetic energy increases.
As the ball’s potential energy decreases, its kinetic energy decreases.
As the ball’s potential energy decreases, its kinetic energy decreases.
As the ball’s potential energy increases, its kinetic energy decreases.
As the ball’s potential energy increases, its kinetic energy decreases.
As the ball’s potential energy decreases, its kinetic energy increases.
As the ball’s potential energy decreases, its kinetic energy increases.
Responses
As the ball’s potential energy increases, its kinetic energy increases.
As the ball’s potential energy increases, its kinetic energy increases.
As the ball’s potential energy decreases, its kinetic energy decreases.
As the ball’s potential energy decreases, its kinetic energy decreases.
As the ball’s potential energy increases, its kinetic energy decreases.
As the ball’s potential energy increases, its kinetic energy decreases.
As the ball’s potential energy decreases, its kinetic energy increases.
As the ball’s potential energy decreases, its kinetic energy increases.
The correct response is:
As the ball’s potential energy decreases, its kinetic energy increases.
When the ball is thrown, it gains kinetic energy as it moves, while its potential energy decreases if it moves downward or remains horizontal.
A student drops a ball from a height of 60 meters. The table below shows the ball’s speed and height as time passes.
At what point in time does the ball have the highest kinetic energy?
(1 point)
Responses
At the start (0 seconds)
At the start (0 seconds)
After 0.5 seconds
After 0.5 seconds
After 2 seconds
After 2 seconds
After 2.5 seconds
After 2.5 seconds
At what point in time does the ball have the highest kinetic energy?
(1 point)
Responses
At the start (0 seconds)
At the start (0 seconds)
After 0.5 seconds
After 0.5 seconds
After 2 seconds
After 2 seconds
After 2.5 seconds
After 2.5 seconds
The ball will have the highest kinetic energy just before it reaches the ground, as kinetic energy increases with speed due to the conversion of potential energy as it falls. Therefore, based on the given options, the highest kinetic energy would occur after 2.5 seconds, assuming it has not yet hit the ground.
A student observes a roller coaster at locations A, B, C, and D on the track.
Which statement is true according to the bar graph?
(1 point)
Responses
Both potential and kinetic energy change, but total energy does not change.
Both potential and kinetic energy change, but total energy does not change.
The roller coaster creates kinetic energy.
The roller coaster creates kinetic energy.
The roller coaster destroys potential energy.
The roller coaster destroys potential energy.
The roller coaster creates potential energy, but kinetic energy does not change.
The roller coaster creates potential energy, but kinetic energy does not change.
Which statement is true according to the bar graph?
(1 point)
Responses
Both potential and kinetic energy change, but total energy does not change.
Both potential and kinetic energy change, but total energy does not change.
The roller coaster creates kinetic energy.
The roller coaster creates kinetic energy.
The roller coaster destroys potential energy.
The roller coaster destroys potential energy.
The roller coaster creates potential energy, but kinetic energy does not change.
The roller coaster creates potential energy, but kinetic energy does not change.
The correct response is:
Both potential and kinetic energy change, but total energy does not change.
In a typical roller coaster system, energy transforms between potential and kinetic forms while the total mechanical energy remains constant (ignoring friction and air resistance).
When the pendulum shown below swings from point A to point B, what happens to its total mechanical energy (ignoring friction)?
(1 point)
Responses
Total mechanical energy goes down.
Total mechanical energy goes down.
Total mechanical energy stays the same.
Total mechanical energy stays the same.
Total mechanical energy goes up.
Total mechanical energy goes up.
Total mechanical energy is not conserved.
(1 point)
Responses
Total mechanical energy goes down.
Total mechanical energy goes down.
Total mechanical energy stays the same.
Total mechanical energy stays the same.
Total mechanical energy goes up.
Total mechanical energy goes up.
Total mechanical energy is not conserved.
The correct response is:
Total mechanical energy stays the same.
In an ideal pendulum system (ignoring friction and air resistance), the total mechanical energy is conserved as it transforms between potential energy at the highest points and kinetic energy at the lowest point.
A model roller coaster rolls from point X to point Y. Describe the energy transformation.
(1 point)
Responses
Kinetic energy transfers to potential energy, then some potential energy transfers to kinetic energy.
Kinetic energy transfers to potential energy, then some potential energy transfers to kinetic energy.
Kinetic energy transfers to potential energy, then some potential transfers to thermal energy.
Kinetic energy transfers to potential energy, then some potential transfers to thermal energy.
Thermal energy transfers to potential energy, then some potential energy transfers to thermal energy.
Thermal energy transfers to potential energy, then some potential energy transfers to thermal energy.
Potential energy transfers to kinetic energy, then some kinetic energy transfers to potential energy.
(1 point)
Responses
Kinetic energy transfers to potential energy, then some potential energy transfers to kinetic energy.
Kinetic energy transfers to potential energy, then some potential energy transfers to kinetic energy.
Kinetic energy transfers to potential energy, then some potential transfers to thermal energy.
Kinetic energy transfers to potential energy, then some potential transfers to thermal energy.
Thermal energy transfers to potential energy, then some potential energy transfers to thermal energy.
Thermal energy transfers to potential energy, then some potential energy transfers to thermal energy.
Potential energy transfers to kinetic energy, then some kinetic energy transfers to potential energy.
The correct response is:
Potential energy transfers to kinetic energy, then some kinetic energy transfers to potential energy.
As the roller coaster rises from point X to point Y, it converts kinetic energy into potential energy. As it descends or moves, that potential energy is converted back into kinetic energy.