Friction Produces Heat

What does friction produce?

• heat

• light

• sound

• gravity

Tags

NGSS.MS-PS3-3

An instrument used to measure heat is called...

• Celsius

• Machine

• Thermometer

• Scale

When you rub your hands together quickly, you can feel warmth between your hands. Which statement explains why rubbing your hands together produces warmth?

• This action causes increased blood circulation.

• This action causes mechanical energy.

• This action captures heat from the environment.

• This action produces heat through friction.

The rougher the surface, the greater the friction.

• TRUE

• FALSE

What is the best description of friction?

• A rubbing force.

• Gravity.

• Movement across a smoother surface.

• Transfer of energy from hot to cold.

Which of these materials do you predict would have the most amount of friction?

• Sandpaper

• Silk

• Notebook paper

• Plastic

Smooth surfaces have less friction.

• True

• False

The rougher a surface is, the more heat will be produced through friction.

• TRUE

• FALSE