Question 1

Question

Sharon and Bruce are playing basketball at a local park. When they take a break, they put the basketball on the brick wall that is near the bleachers. They notice that the basketball rolls off the wall and falls to the ground.

This makes them think about a school lesson about energy. Fill in the blanks from their conversation.

(4 points)
a. Sharon reminded Bruce that the basketball had energy as it fell. This energy of motion is called
. Bruce agreed and said this energy of motion was
right before the ball hit the ground.

b. Then Bruce recalled that the ball originally had stored energy as it sat on the wall. This stored energy is called
. Sharon explained that this stored energy
as the ball fell.

Question 2
Sharon and Bruce want to determine what type of energy the basketball has at various times.

c. Identify the type or types of energy described in each situation listed below.

You might click only one answer in each row, or you might click both answers in a row.

(3 points)
potential energy kinetic energy
The basketball is sitting on the wall.

The basketball is falling and is about half-way between the top and the bottom.

After the basketball hits the ground, it starts rolling across the ground in front of the wall.

Answer 1

Question 1
a. Sharon reminded Bruce that the basketball had energy as it fell. This energy of motion is called kinetic energy. Bruce agreed and said this energy of motion was at its maximum right before the ball hit the ground.

b. Then Bruce recalled that the ball originally had stored energy as it sat on the wall. This stored energy is called potential energy. Sharon explained that this stored energy decreased as the ball fell.

Question 2
c. Identify the type or types of energy described in each situation listed below.

| Situation Description | Potential Energy | Kinetic Energy | |--------------------------------------------------------------------------------------|------------------|-----------------| | The basketball is sitting on the wall. | ✔ | | | The basketball is falling and is about half-way between the top and the bottom. | | ✔ | | After the basketball hits the ground, it starts rolling across the ground in front of the wall. | | ✔ |