Patterns of Motion & Friction

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What is the purpose of reducing friction?

Back

Reducing friction can help objects move more easily and quickly, like in air hockey.

Front

What is an example of a surface that reduces friction?

Back

Oil is often used on bowling alleys to reduce friction.

Front

What increases friction on a car?

Back

The tires of a car increase friction, helping it grip the road.

Front

What is a pendulum?

Back

A pendulum is a weight hung from a fixed point that swings back and forth due to gravity.

Front

How does the length of a pendulum affect its motion?

Back

A longer pendulum swings slower than a shorter one.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, like the Earth pulling us down.

Front

What happens to the motion of a pendulum if there is too much friction?

Back

If there is too much friction, the pendulum will swing less and eventually stop.

Front

What is an example of a pattern of motion?

Back

The swinging of a pendulum creates a regular pattern of motion.

Front

How does air help in air hockey?

Back

Air reduces friction between the puck and the table, allowing it to glide smoothly.