Patterns of Motion & Friction

Front

What is resistance to motion called?

Back

Friction is the resistance that one surface or object encounters when moving over another.

Front

What does air do in air hockey?

Back

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

Front

Which pendulum swings the fastest?

Back

The shortest pendulum swings the fastest because it has less distance to cover.

Front

What is used to reduce friction on a bowling alley lane?

Back

Oil is used to coat the bowling alley lane to reduce friction.

Front

What can patterns of motion help us do?

Back

Patterns of motion can help us make predictions about how objects will move.

Front

What is friction?

Back

Friction is a force that opposes motion between two surfaces in contact.

Front

How does reducing friction affect motion?

Back

Reducing friction allows objects to move more easily and quickly.

Front

What is an example of a situation where friction is helpful?

Back

Friction helps us walk without slipping.

Front

What happens to a pendulum's speed as it gets longer?

Back

A longer pendulum swings more slowly than a shorter one.

Front

What is viscosity?

Back

Viscosity is a measure of a fluid's resistance to flow.