Gravity and Friction

What is gravity?

• A force
• Energy
• A push
• All of them

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NGSS.MS-ESS1-2

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Without gravity we would________. 

• Float away
• Stay in the ground
• Nothing would happen.
• I don't know

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Which objects have a STRONG force of gravity?

• Objects with GREATER mass, like elephants
• Objects with LESS mass, like mice

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NGSS.MS-PS2-4

Which has a STRONGER force of gravity, Earth or the Moon?

• Earth
• Moon

Tags

NGSS.MS-PS2-4

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Friction is a force that acts in a(n) ___________ direction relative to a moving object.

• similar
• opposite
• parallel
• perpendicular

 What is the unit that measures force?

• Weight
• Net force
• Newton
• Kilogram

What type of friction acts on an object that is not yet moving?

• Static
• Dynamic
• kinetic
• Rolling

These swimmers are most likely experiencing _________.

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

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

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

Tags

NGSS.MS-PS2-2

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

• mass and distance 
• mass and volume
• distance and weight 
• weight and mass

Tags

NGSS.MS-PS2-4