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Team 2
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15
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How does friction cause heat?
When surfaces get rubbed together, the molecules start moving faster. This movement causes the material to get hotter.
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15
×
How do we know if an object will sink or float in water?
to float, an object has to be less dense than water.
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15
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What is a friction burn?
Burns caused by friction working at high speeds.
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heart
Other team wins 10 points!
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magnet
Take 25 points!
Okay!
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shark
Other team loses 25 points!
Okay!
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baam
Lose 10 points!
Oops!
15
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What is a force?
the amount of matter in something
the amount of matter in something
pushes and pulls that change the motion of objects
when one surface or object rubs against another
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15
×
What would happen if friction didn't exist.
We would all be slipping and sliding.
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boom
Lose 50 points!
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rocket
Go to first place!
Okay!
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rocket
Go to first place!
Okay!
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banana
Go to last place!
Oops!
15
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How does a parachute work? Why do people wear them when they go parachuting?
When the parachute opens, the air resistance is greater than the gravity. This slows the person down and allows them to land safely.
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seesaw
Swap points!
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gold
Win 50 points!
Okay!
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rocket
Go to first place!
Okay!
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thief
Give points!
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25
15
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Give me two examples of friction in action!
.
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monster
Reset all scores!
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fairy
Take points!
5
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25
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rocket
Go to first place!
Okay!
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banana
Go to last place!
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15
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Is your weight the same in every planet of our Solar System? How about your mass?
Your weight is different, because it depends on the gravity. Your mass is the same!
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15
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What is mass?
the force that attracts things towards Earth
when one surface or object rubs against another
pushes and pulls
the amount of matter in something
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15
×
Why does rubbing your hands together warm them up?
friction!
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15
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Can water surface tension support our weight?
No! It can only support a little bit of weight.
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15
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True or False. Water has a skin that allows insects to stand on the water.
False! Water doesn't have skin. It has surface tension.
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