Which factors determine the potential energy of an object?(1 point)
Responses
Mass and velocity
Gravity and position
Weight and velocity
Mass and position
Gravity and position
An object’s gravitational potential energy is dependent on the object’s mass, the strength of its gravitational field, and which of the following: (1 point)
Responses
the shape of the object
the height of the object
the velocity of the object
the temperature of the object
the height of the object
Lucy picks up an object from the floor. How will the potential energy change if Lucy lifts the object above her head?(1 point)
Responses
The object's potential energy will stay the same.
The object's potential energy will decrease.
The object's potential energy will be zero.
The object's potential energy will increase.
The object's potential energy will increase.
Complete the following statements with the correct words.(1 point)
An object that is stationary has _______ energy. When the object is pushed, that energy transfers to ________ energy. Throughout this energy transfer, the object's total energy _______.
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 remains constant.
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 decreases, its kinetic energy increases.
As the ball’s potential energy increases, its kinetic energy increases.
As the ball’s potential energy increases, its kinetic energy decreases.
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.
At what point in time does the ball have the highest kinetic energy?
(1 point)
Responses
At the start (0 seconds)
After 0.5 seconds
After 2 seconds
After 2.5 seconds