5. 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 speed of the object
the speed of the object
the object's height from the ground
the object's height from the ground
the shape of the object
the shape of the object
the color of the object
the height of the object
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 remains the same
It remains the same
It is not conserved
It is not conserved
It declines
It declines
It becomes greater.
It remains the same
10. 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
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
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; kinetic energy as she walks down
kinetic 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; kinetic energy as she walks down
the object's height from the ground
The correct answer is the object's height from the ground.
Gravitational potential energy is the energy stored in an object due to its position in a gravitational field. The formula for gravitational potential energy is given by:
Potential energy = mass × gravitational field strength × height
As we can see from the formula, the object's mass and the strength of the gravitational field are directly involved in determining the gravitational potential energy. Additionally, the height of the object from the ground is also a crucial variable. The higher the object is from the ground, the greater its gravitational potential energy.
Therefore, the correct answer is the object's height from the ground.