The Force of Friction

Which type of friction occurs when an object rolls over or rotates on a surface?

• sliding
• static
• fluid
• rolling

Oil between machine parts would be an example of which type of friction?

• static
• sliding
• fluid
• rolling

Friction force is the reason for stopping any body during motion .

• False

• True

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

• similar
• opposite
• parallel
• west

What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

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

Which of the following is an example of trying to increase friction?

• Squirting oil into the door hinges
• Spreading grit on the icy roads
• Waxing the underneath of skis

Which of the following statements is false?

• Friction can only slow things down
• Friction is never useful
• Friction can stop things from moving

Tags

NGSS.MS-PS3-5

What does friction produce?

• light
• sound
• heat
• gravity

Tags

NGSS.HS-PS3-4