Friction and Gravity

How does friction affect speed?

• more friction decreases speed
• more friction increases speed
• less friction decreases speed
• less friction doesn't affect speed

Tags

NGSS.MS-PS2-2

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

• True
• False

On which surface will a toy car travel the furthest?

• Carpet
• Polished Wood
• Ice

Tags

NGSS.MS-PS2-2

Rougher surfaces have ...

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

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

• similar
• opposite
• parallel
• west

Tags

NGSS.HS-PS2-1

How does friction affect speed?

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

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

• True
• False

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

• True
• False

When most objects with smooth surfaces rub, there is less friction.

• True
• False

What does friction produce?

• light
• sound
• heat
• gravity

Tags

NGSS.HS-PS3-4