An object’s gravitational potential energy depends on the object’s mass, the strength of the gravitational field, and what other variable?(1 point)
Responses
the shape of the object
the shape of the object
the speed of the object
the speed of the object
the object's height from the ground
the object's height from the ground
the color of the object
the object's height from the ground
If you are at an amusement park and you ride a slingshot, how does your potential energy compare to your kinetic energy at the top of the shot?
(1 point)
Responses
The kinetic energy is twice the amount of potential energy.
The kinetic energy is twice the amount of potential energy.
The kinetic energy is less than potential energy.
The kinetic energy is less than potential energy.
The kinetic energy and potential energy are the same.
The kinetic energy and potential energy are the same.
Kinetic energy is greater than potential energy.
The kinetic energy is less than potential energy.
In an investigation of energy transfer, a student observes a roller coaster at locations A, B, C, and D. Then she creates the graph below of the roller coaster’s potential and kinetic energy at each location.
Which statement is true according to the graph?
(1 point)
Responses
The roller coaster destroys potential energy.
The roller coaster destroys potential energy.
The roller coaster’s kinetic and potential energy change from location to the next, but its total energy remains the same.
The roller coaster’s kinetic and potential energy change from location to the next, but its total energy remains the same.
Potential energy increases, but kinetic energy does not change.
Potential energy increases, but kinetic energy does not change.
The roller coaster creates kinetic energy.
The roller coaster’s kinetic and potential energy change from location to the next, but its total energy remains the same.
8. The pendulum in the diagram below swings from position A to B.
If we don’t consider friction, what happens to the total mechanical energy as the pendulum swings from position A to position B?
(1 point)
Responses
It declines
It declines
It becomes greater.
It becomes greater.
It is not conserved
It is not conserved
It remains the same
It remains the same
Rebecca climbs the ladder of a large water slide, waits her turn at the top, and then slides down the slide into a pool. Which answer best describes the energy changes during her time on the slide?(1 point)
Responses
kinetic → potential → kinetic
kinetic → potential → kinetic
potential → mechanical → kinetic
potential → mechanical → kinetic
kinetic → mechanical → potential
kinetic → mechanical → potential
potential → kinetic → potential
kinetic → potential → kinetic
Kim is upstairs, but walks downstairs to the kitchen for a snack. Which statement correctly describes the types of energy she has at the top of the stairs and as she walks down the stairs?(1 point)
Responses
potential energy at the top of the stairs; kinetic energy as she walks down
potential energy at the top of the stairs; kinetic energy as she walks down
potential energy at the top of the stairs; potential energy as she walks down
potential energy at the top of the stairs; potential energy as she walks down
kinetic energy at the top of the stairs; potential energy as she walks down
kinetic energy at the top of the stairs; potential energy as she walks down
kinetic energy at the top of the stairs; kinetic energy as she walks down