Friction and Air Resistance

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What happens to friction when sandpaper is used on wood?

Back

Friction is decreased.

Front

Why do feathers fall slower than bowling balls?

Back

Because of air resistance.

Front

What can reduce friction the most?

Back

Ice on a paved road.

Front

Why do basketball players choose their shoes carefully?

Back

To decrease friction on the basketball court.

Front

What is air resistance?

Back

A force that opposes the motion of an object moving through air.

Front

How does surface texture affect friction?

Back

Rough surfaces increase friction, while smooth surfaces decrease it.

Front

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

Back

Friction helps us walk without slipping.

Front

What is an example of a situation where friction is not useful?

Back

Friction can cause wear and tear on moving parts in machines.

Front

What is the relationship between mass and friction?

Back

More mass usually means more friction.