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25
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Josh loves her garden slide. She finds that when she wears cotton clothes she goes faster than when she wears woollen clothes. Why?
Less friction between slide and cotton clothes than between slide and woolen clothes.
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lifesaver
Give 10 points!
Oops!
×
magnet
Take 5 points!
Okay!
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rocket
Go to first place!
Okay!
×
baam
Lose 25 points!
Oops!
25
×
How does friction affect speed?
more friction decreases speed
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trap
No points!
Oops!
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rocket
Go to first place!
Okay!
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fairy
Take points!
5
10
15
20
25
×
baam
Lose 20 points!
Oops!
25
×
Mention 3 things around you that you can pull!
Your friends and teacher will check your answer.
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25
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Is the friction more or less when the ground is slippery?
Less Friction. Smooth surfaces has less or no bumps and they make it easier to push objects.
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15
×
When I use elastic band, I can change its shape by .....
pulling
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20
×
What is the unit of measurement of force?
Newton
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25
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When does friction happen?
Friction takes place when object runs against each other.
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25
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Does this surface smooth or rough? Why?
Smooth! Smooth surfaces have much smaller bumps.
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25
×
This is a force that pulls everything to the ground.
Gravity
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heart
Other team wins 25 points!
Oops!
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magnet
Take 10 points!
Okay!
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gift
Win 25 points!
Okay!
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baam
Lose 25 points!
Oops!
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eraser
Reset score!
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shark
Other team loses 10 points!
Okay!
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gift
Win 10 points!
Okay!
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banana
Go to last place!
Oops!
25
×
Does this surface look rough or smooth? Why? Friction?
Rough! It is covered with many bumps and groove which increase friction when surfaces rub together.
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25
×
Mention some workers who have to change the shape of materials. (three)
Baker, Potter, Carpenter
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20
×
what's the name of this equipment?
Spring Scale
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