Friction

Front

Friction is a force that acts in an ___________ direction of movement.

Back

opposite

Front

What is friction?

Back

The contact force between two solids, liquids, or gases that slide past one another.

Front

When there is friction, the energy of an object's motion is converted into _______ energy.

Back

heat

Front

Which of the following is NOT an example of friction?

• using the brakes on your bike to slow you down
• putting your hand out the window
• a satellite traveling through deep space
• a hockey puck going across an ice rink

Back

a satellite traveling through deep space

Front

On which surface will a toy car travel the furthest? Options: Carpet, Polished Wood, Ice

Back

Ice

Front

Can only solids produce friction?

Back

false

Front

The amount of friction depends on the weight of the objects pressing together.

Back

True

Front

What type of friction is not moving? Options: static, sliding, fluid, rolling

Back

static

Front

How can friction be reduced?

Back

All of the above are ways of reducing friction: reduce the force acting between the 2 surfaces, reduce the roughness of the 2 surfaces coming in contact, use wax, grease or oil.

Front

When two surfaces rub, the irregularities of one surface get caught on those of the other surface?

Back

True