Friction

A force that opposes motion between any surfaces that are in contact.

• gravity

• acceleration

• friction

• direction

Which type of friction is shown in the picture?

• fluid

• static

• rolling

• sliding

Which type of friction is shown in the picture?

• rolling

• static

• fluid

• sliding

Which boy A or B will slide down faster

• A

• B

• A and B

Tags

NGSS.MS-PS2-2

What does the strength of the force depend on? Check the answers that apply.

• The types of surfaces

• The weather

• How hard the surfaces push together

• motion

A hard wood floor has more friction than a carpet.

• true

• false

_____________ friction acts on objects that are not moving.

• sliding

• rolling

• static

• fluid

What type of friction does this picture show?

• static friction.

• sliding friction.

• rolling friction.

• fluid friction

Sliding friction is stronger than static friction.

• TRUE

• FALSE

The friction force acts in the ...................... direction of movement

• Same

• Opposite

• sometime Opposite

Tags

NGSS.HS-PS2-1