An object that is stationary has (WORD BANK: NO, KINETIC, MAXIMUM, POTENTIAL) energy. When the object is pushed, that energy transfers to (WORD BANK: POTENTIAL, TOTAL, MAXIMUM, KINETIC) energy. Throughout this energy transfer, the object's total energy (WORD BANK: DECREASES, INCREASES, STAYS THE SAME)
7 answers
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.
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 decreases.
As the ball’s potential energy decreases, 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.
Responses
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 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 increases.
A student drops a ball from a height of 60 meters. The table below shows the ball’s speed and height as time passes.
TIME | SPEED m/s | HEIGHT
0.0 | 0 | 60
0.5 | 7 | 53
1.0 | 10 | 43
1.5 | 15 | 28
2.0 | 20 | 8
2.5 | 0 | 0
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
TIME | SPEED m/s | HEIGHT
0.0 | 0 | 60
0.5 | 7 | 53
1.0 | 10 | 43
1.5 | 15 | 28
2.0 | 20 | 8
2.5 | 0 | 0
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
The ball has the highest kinetic energy after 2 seconds.
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 stays the same.
Total mechanical energy stays the same.
Total mechanical energy goes up.
Total mechanical energy goes up.
Total mechanical energy goes down.
Total mechanical energy goes down.
Total mechanical energy is not conserved.
(1 point)
Responses
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 goes down.
Total mechanical energy goes down.
Total mechanical energy is not conserved.
Total mechanical energy stays the same.