What is Friction?

Which child do you think is moving the fastest?

• 
• 
• 
• 

What happens when you press the brakes on your bike?

• You can go faster

• You turn around

• You lose speed

• You make a trick

Friction is a force that slows down or stops motion when two objects are in contact.

• True

• False

A surface that is _________ generally provides more friction.

• smooth

• rough

• contact

• friction

A surface that is _________ generally provides less friction.

• smooth

• rough

• friction

• contact

When you rub your hands together,...

• your hands get colder.

• your hands start to hurt.

• your hands start a fire.

• your hands get warmer.

Write a word that you learned today!