Complete Newton's Third Law: For every action_________________.
there is an equal and opposite reaction.
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15
What is the type of force when 2 surfaces rub together?
Friction
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10
What do we call the overall / single force acting on an object?
Resultant Force
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15
Name 2 advantages of friction.
Any 2: allows objects to remain still, allows us to grip things and walk, prevents slipping, allows moving objects to stop, produces heat to start a fire.
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5
What is a force?
A push or pull applied to an object.
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trap
No points!
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gift
Win 5 points!
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rocket
Go to first place!
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thief
Give points!
5
10
15
20
25
10
What device is used to measure force?
Spring Balance
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banana
Go to last place!
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star
Double points!
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shark
Other team loses 10 points!
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banana
Go to last place!
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10
What is the force that keeps everything on Earth from flying into the air?
Gravity
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10
True or False: Heavier objects require more force to move and stop.
True
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10
What unit do we use to measure force?
Newtons
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10
True or False: Friction speeds up moving objects.
False: Friction slows down moving objects.
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15
What is the magnitude of a force?
The size of the force acting on an object.
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15
What is the equation to calculate force? Force= _________ _____ _________
Force = Mass x Acceleration
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15
Name 2 disadvantges of friction.
Any 2: slows moving objects, produces unnecessary heat and noise, damages / wears out surfaces that are in contact.
