Friction

Friction is the ____________ that one surface exerts on another surface.

• gravity

• motion

• force

What does friction do to the motion of an object?

• Friction slows down or stops an object.

• Friction keeps an object from moving.

• Both of the above

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

Tags

NGSS.3-PS2-1

A hard wood floor has more friction than a carpet.

• true

• false

Sliding friction is when two _____________ surfaces slide over one another.

• liquid

• oil

• solid

Fluid friction includes when an object moves through air.

• true

• false

Tags

NGSS.MS-ESS2-5

The more friction that there is, the slower an object will move.

• true

• false

Tags

NGSS.MS-PS2-2

Wheels on a skateboard most likely experiences-

• Rolling Friction
• Sliding Friction
• Fluid Friction
• Static Friction

Sally experiences-

• Rolling Friction
• Sliding Friction
• Fluid Friction
• Static Friction

Wheels of a shopping cart experience-

• Rolling Friction
• Sliding Friction
• Fluid Friction
• Static Friction

Tags

NGSS.MS-PS2-2