Friction

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it rubs against another surface.

Front

What creates friction?

Back

Friction is created by rubbing surfaces together.

Front

What kind of force is needed to pull a sled with a person on it?

Back

A strong force is needed to pull a sled with a person on it.

Front

True or False: Air causes friction and slows things down.

Back

True.

Front

What does friction do to moving objects?

Back

Friction makes things slow down or stop.

Front

Why do swimmers wear smooth swimsuits and hats?

Back

Swimmers wear smooth swimsuits and hats to reduce friction in the water.

Front

What is an example of friction in everyday life?

Back

An example of friction is when you rub your hands together to warm them up.

Front

What happens when there is less friction?

Back

When there is less friction, objects can move more easily and quickly.

Front

What is static friction?

Back

Static friction is the friction that prevents an object from starting to move.

Front

What is kinetic friction?

Back

Kinetic friction is the friction that acts on an object that is already moving.