Chap 5 & 6

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, such as the Earth pulling objects towards its center.

Front

What happens to a ball when it is released from a height?

Back

The ball falls to the ground due to the force of gravity.

Front

What type of energy does a cell phone battery contain?

Back

A cell phone battery contains chemical energy.

Front

How does sound volume affect battery life in a cell phone?

Back

Loud sounds use more battery energy than quiet sounds.

Front

What force can stop a moving car?

Back

A force that pushes in the opposite direction of the car's movement can stop it.

Front

What happens to the forces acting on a glider as it falls?

Back

The upward force on the glider becomes weaker than the downward force of gravity.

Front

What type of force causes a thrown rock to come down?

Back

Gravity is the force that causes a thrown rock to come down.

Front

What is the relationship between energy and sound volume?

Back

Higher sound volumes require more energy, while lower volumes require less energy.

Front

What is an example of a force that acts in the opposite direction of motion?

Back

Friction is an example of a force that acts in the opposite direction of motion.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.