A ball is held at the top of a table. The person holding the ball drops it, and the ball is allowed to fall toward Earth. Answer the following questions about the ball.a. When the ball is held at the top of the table (before being dropped), what type of energy does the ball have?(1 point)Responsespotential energypotential energykinetic energykinetic energymotion energymotion energyelectrical energyelectrical energyQuestion 2b. As the ball is falling, what is happening to its energy?(1 point)Responseskinetic energy converts to potential energy as it fallskinetic energy converts to potential energy as it fallskinetic energy stays the same as it fallskinetic energy stays the same as it fallspotential energy stays the same as it fallspotential energy stays the same as it fallspotential energy converts to kinetic energy as it fallspotential energy converts to kinetic energy as it fallsQuestion 3c. Just before the ball hits the ground, how are its speed and kinetic energy related?(1 point)ResponsesSpeed is at its highest value, while kinetic energy is at its lowest value.Speed is at its highest value, while kinetic energy is at its lowest value.Speed is at its lowest value, which kinetic energy is at its highest value.Speed is at its lowest value, which kinetic energy is at its highest value.Both speed and kinetic energy are at their greatest values.Both speed and kinetic energy are at their greatest values.Both speed and kinetic energy are at their lowest values.Both speed and kinetic energy are at their lowest values.Skip to navigation
a. When the ball is held at the top of the table (before being dropped), the ball has potential energy.
b. As the ball is falling, potential energy converts to kinetic energy.
c. Just before the ball hits the ground, speed is at its highest value, while kinetic energy is at its highest value.
A student is testing how mass impacts kinetic energy. From the same height on a diving board, she drops two balls into a swimming pool. One ball has a bigger mass than the other.a. How would the splashes of the two balls compare?(1 point)ResponsesThe balls would make splashes of the same size.The balls would make splashes of the same size.The ball with the lower mass would make a bigger splash.The ball with the lower mass would make a bigger splash.The ball with the higher mass would make a bigger splash.The ball with the higher mass would make a bigger splash.The size of the splash is independent of the mass of the ball.
a. The ball with the higher mass would make a bigger splash.
b. How does the mass of a falling object impact the object's kinetic energy?(1 point)ResponsesAn increase in mass causes an increase in kinetic energy.An increase in mass causes an increase in kinetic energy.An increase in mass causes a decrease in kinetic energy.An increase in mass causes a decrease in kinetic energy.A decrease in mass causes an increase in kinetic energy.A decrease in mass causes an increase in kinetic energy.Mass does not impact kinetic energy.
b. An increase in mass causes an increase in kinetic energy.
c. What happens to the kinetic energy of a ball when it hits the water?(1 point)ResponsesSome of the energy is transferred to the water.Some of the energy is transferred to the water.Overall, kinetic energy is gained.Overall, kinetic energy is gained.Overall, kinetic energy is lost.Overall, kinetic energy is lost.All of the kinetic energy is kept by the ball.All of the kinetic energy is kept by the ball.
c. Some of the energy is transferred to the water.
a. At which position is the potential energy the greatest?(1 point)Responses10 m10 m8 m8 m5 m5 m0 m0 mQuestion 2b. At what position is the kinetic energy the greatest?(1 point)Responses10 m10 mjust below 10 mjust below 10 mjust above 0 mjust above 0 m0 m0 mQuestion 3c. What is happening to potential energy as the ball is falling?(1 point)ResponsesPotential energy is decreasing.Potential energy is decreasing.Potential energy is increasing.Potential energy is increasing.Potential energy is staying the same.Potential energy is staying the same.It is impossible to tell.It is impossible to tell.Question 4d. What is happening to kinetic energy as the ball is falling?(1 point)ResponsesKinetic energy is decreasing.Kinetic energy is decreasing.Kinetic energy is increasing.Kinetic energy is increasing.Kinetic energy is staying the same.Kinetic energy is staying the same.It is impossible to tell.It is impossible to tell.Question 5e. What is happening to total energy as the ball is falling?(1 point)ResponsesTotal energy is decreasing.Total energy is decreasing.Total energy is increasing.Total energy is increasing.Total energy is staying the same.Total energy is staying the same.It is impossible to tell.
a. The potential energy is the greatest at 10 m.
b. The kinetic energy is the greatest just below 10 m.
c. Potential energy is decreasing as the ball is falling.
d. Kinetic energy is increasing as the ball is falling.
e. Total energy is staying the same as the ball is falling.