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)
Responses
electrical energy
electrical energy
kinetic energy
kinetic energy
potential energy
potential energy
motion energy
motion energy
Question 2
b. As the ball is falling, what is happening to its energy?(1 point)
Responses
potential energy stays the same as it falls
potential energy stays the same as it falls
kinetic energy converts to potential energy as it falls
kinetic energy converts to potential energy as it falls
potential energy converts to kinetic energy as it falls
potential energy converts to kinetic energy as it falls
kinetic energy stays the same as it falls
kinetic energy stays the same as it falls
Question 3
c. Just before the ball hits the ground, how are its speed and kinetic energy related?(1 point)
Responses
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.
Speed 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.
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.
Question 1
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)
Responses
electrical energy
electrical energy
kinetic energy
kinetic energy
potential energy
potential energy
motion energy
potential energy
b. As the ball is falling, what is happening to its energy?(1 point)
Responses
potential energy stays the same as it falls
potential energy stays the same as it falls
kinetic energy converts to potential energy as it falls
kinetic energy converts to potential energy as it falls
potential energy converts to kinetic energy as it falls
potential energy converts to kinetic energy as it falls
kinetic energy stays the same as it falls
potential energy converts to kinetic energy as it falls
thx!!!
You're welcome! If you have any more questions, feel free to ask.
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)
Responses
The size of the splash is independent of the mass of the ball.
The size of the splash is independent of the mass of the ball.
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 balls would make splashes of the same size.