Friction

 What is the unit called that measures force?

• weight
• meter
• Newton
• kilogram

Tags

NGSS.MS-PS2-1

What does friction produce?

• light
• sound
• heat
• gravity

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NGSS.MS-PS1-4

NGSS.MS-PS3-5

The force that acts in the opposite direction of motion when two surfaces come in contact. 

• Force
• Friction
• Static
• Kinetic 

Tags

NGSS.3-PS2-1

What direction does friction act relative to motion?

• in the same direction
• in the opposite direction 
• need more information
• depends on the force

Tags

NGSS.3-PS2-1

True or False: objects that are smooth have LESS friction than objects that are rough

• TRUE

• FALSE

Imagine you decide to jump out of an airplane 🛩

Which force is going to pull you down towards earth

• Fluid Friction

• Static Friction

• Gravity

• The wind from the airplane

Tags

NGSS.MS-PS2-4

When you go down a slide which two forces are competing in a tug of war?

• Gravity and Sliding Friction

• Gravity and Rolling Friction

• Gravity and Your Friend Pushing You

• Gravity and Pushing Friction

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NGSS.MS-PS2-4

Which of these materials do you predict would have the MOST amount of friction

• Metal

• Tile

• Sand Paper

• Denim

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NGSS.2-PS1-1

NGSS.2-PS1-2

How does friction affect speed?

• more friction decreases speed
• more friction increases speed
• less friction decreases speed
• less friction doesn't affect speed

Tags

NGSS.MS-PS2-2

Which of the following is an example of friction that is helpful?

• Brakes used on a bike
• Tires from a car on the road
• Tread on the bottom of your shoes
• All are examples that are helpful