Friction #1

Wheels on a skateboard most likely experiences-

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

Tags

NGSS.3-PS2-1

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Sally experiences-

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

Tags

NGSS.3-PS2-1

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Swimming fish experience-

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

Tags

NGSS.3-PS2-1

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

• similar
• opposite
• parallel
• west

Which type of friction occurs when an object moves through a liquid or gas?

• sliding
• fluid
• static
• rolling

Objects balanced on Timmy's head experiences-

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

Tags

NGSS.MS-PS2-2

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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 

How does friction affect speed?

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

Tags

NGSS.3-PS2-1

How can friction be reduced?

• reduce the force acting between the 2 surfaces
• reduce the roughness of the 2 surfaces coming in contact
• use wax, grease or oil
• all of the above are ways of reducing friction

Tags

NGSS.MS-PS2-1

What type of friction is not moving?

• static
• sliding
• fluid
• rolling