Friction

Wheels on a skateboard most likely experience _______

• Rolling Friction

• Sliding Friction

• Fluid Friction

• Static Friction

Friction is the force that acts in the ___________ direction of movement.

• similar

• opposite

• parallel

• west

How does friction affect speed?

• more friction decreases speed
• more friction increases speed
• less friction decreases speed

Tags

NGSS.MS-PS2-2

The rougher the surface, the faster an object will travel over the surface.

• True
• False

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

• True
• False

What does friction produce?

• light
• sound
• heat
• gravity

Tags

NGSS.HS-PS3-4

What is friction?

• The random force between two solids, liquids, or gases.

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

• The force that creates static electricity and helps us fly.

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

• heat

• kinetic

• stronger

• friction

Tags

NGSS.MS-PS3-5

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

Rougher surfaces have ...

• greater friction
• less friction
• the same level of friction