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15
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Friction produces heat. State 5 Pro & 5 con
Pro- Walking, Con - Wear and Tear of Machinery
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trap
No points!
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fairy
Take points!
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25
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gift
Win 25 points!
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lifesaver
Give 15 points!
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15
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Name the 3 types of friction, with one example each. Which is the most, and which least?
Static, Sliding, Rolling
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banana
Go to last place!
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seesaw
Swap points!
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rocket
Go to first place!
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lifesaver
Give 25 points!
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baam
Lose 10 points!
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gold
Win 50 points!
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fairy
Take points!
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thief
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15
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How do Ice Skies reduce friction?
Both Ski and Ice are smooth
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15
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How do fishes reduce friction?
Water, Slippery and smooth, Stream-lined
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banana
Go to last place!
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star
Double points!
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rocket
Go to first place!
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thief
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25
15
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Why are bowling balls round and not square?
point of contact is minimal in round ball than square
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15
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Why do Hovercrafts work?
Air Cushion
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15
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How does Air Hockey work?
Air Cushion
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15
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What kind of shoes do mountaineers/ cricketers use?
Spiked shoes
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15
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Why are Car wheels round, and not square?
Point of contact is minimal, so friction is minimized
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15
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How are heavy loads shifted, if you want to slide it on the ground? Name this type of Friction
With Rollers. The point of contact is so little that it minimizes friction. This is Sliding friction
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