Friction

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

Swimming fish experience-

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

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

• similar
• opposite
• parallel
• west

A type of friction that occurs when air pushes against a moving object causing it to negatively accelerate

• surface area
• air resistance
• descent velocity
• gravity 

Tags

NGSS.MS-PS3-5

How does friction affect speed?

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

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

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 are 2 factors that determine the amount of friction between 2 objects?

• Force and roughness between surfaces
• hills and valleys and how smooth or rough the surface is
• Amount of force and amount of surface the comes in contact
• The force and the weight exerted on the surfaces