MFE Gravity and Friction, Contact and Noncontact Forces

Any push or pull is called...

• gravity.

• magnetism.

• a force.

• acceleration.

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NGSS.MS-PS2-1

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Friction would be an example of ...

• gravity.

• magnetism.

• contact force.

• non contact force.

Two factors effecting the magnitude of the force of gravity between 2 objects are...

• Mass and Distance 
• Mass and Matter
• Distance and Weight 
• Weight and Mass

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NGSS.MS-PS2-4

The force of gravity acting on an object is the object's ______.

• Mass
• Matter
• Weight 
• Terminal velocity 

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NGSS.MS-PS2-2

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How does friction affect speed?

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

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NGSS.MS-PS2-2

Which best describes the force of gravity?

• a pulling force
• a pushing force
• a change in mass
• a change in speed

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NGSS.MS-PS2-4

James and Alex are kicking a ball back and forth. Alex kicks the ball in James’s direction, but the ball stops just before it reaches James. Which most likely caused the ball to stop?

• friction
• gravity
• change in mass of the ball
• change in shape of the ball

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NGSS.MS-PS2-2

As the child moves down the slide, they mostly experience the effect of ___________.

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

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NGSS.MS-PS2-2

These swimmers are most likely experiencing _________.

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

What is the SI unit used to measure force? 

• Pounds 
• Grams 
• Newtons 
• kg/ m²

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NGSS.MS-PS2-2