Answer:

Kinetic Energy

1. A rock is sitting at the top of a hill. What is its potential energy?

The potential energy of the rock is equal to the work done in order to move it to the top of the hill. The work is equal to the force applied to the rock multiplied by the distance it is moved.

2. A car is accelerating down a road. What is the force acting on the car?

The force acting on the car is equal to the mass of the car multiplied by the acceleration.

3. A person is standing on a scale. What is the force acting on the person?

The force acting on the person is equal to the weight of the person. The weight is equal to the mass of the person multiplied by the acceleration due to gravity.

4. A ball is thrown into the air. What is the force acting on the ball?

The force acting on the ball is equal to the weight of the ball. The weight is equal to the mass of the ball multiplied by the acceleration due to gravity.