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15
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Which surface creates the most friction with skateboard? (Grass. Wood, Stone)
Grass
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15
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If there is too much friction, Nothing will move. True or False?
True
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×
seesaw
Swap points!
Oops!
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rocket
Go to first place!
Okay!
×
shark
Other team loses 10 points!
Okay!
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thief
Give points!
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25
15
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Rougher surfaces have MORE or LESS? friction.
More
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15
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True or False? Friction speeds up moving objects.
False: Friction slows down moving objects.
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15
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Friction between eraser and paper helps us to erase pencil marks-True or False
True
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15
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What is the thing that keeps everything on Earth from flying into the air?
Gravity (not Friction)
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15
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Lighting a matchstick using a match box is not an example of friction-True or False?
False
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15
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When there's friction between two objects, the objects become cold. True or False?
False
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heart
Other team wins 20 points!
Oops!
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rocket
Go to first place!
Okay!
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fairy
Take points!
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25
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baam
Lose 20 points!
Oops!
15
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Friction makes it easier to slide heavy objects across the floor-True or False?
False
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15
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Which would create more friction? metal of carpet
carpet
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boom
Lose 50 points!
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fairy
Take points!
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25
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gift
Win 20 points!
Okay!
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lifesaver
Give 10 points!
Oops!
15
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Is it easier to stop a bike on a sunny day or a rainy day?
It's easier to brake on a sunny day, ground is slippery on rainy days, so you get less friction = harder to stop.
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Check
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thief
Give points!
5
10
15
20
25
×
seesaw
Swap points!
Okay!
×
shark
Other team loses 5 points!
Okay!
×
baam
Lose 20 points!
Oops!
15
×
Which activity has less friction? skating or rock climbing
skating
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×
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