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15
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Imagine that you are trying to open a jar, and the lid is stuck. You exert a lot of force on the lid, but it doesnโt move. Are you doing work?
No. No matter how much force you exert, you donโt do any work if the lid does not move.
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heart
Other team wins 10 points!
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magnet
Take 20 points!
Okay!
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rocket
Go to first place!
Okay!
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thief
Give points!
5
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25
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baam
Lose 10 points!
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fairy
Take points!
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25
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gift
Win 10 points!
Okay!
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thief
Give points!
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25
15
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Explain evaporation
Individual particles gain energy from the sun, other particles, etc until they gain enough to turn into a gas
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eraser
Reset score!
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fairy
Take points!
5
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25
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rocket
Go to first place!
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thief
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25
15
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What affects kinetic energy?
Speed and mass
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15
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What is the mathematical formula for gravitational potential energy?
Gravitational potential energy = Weight (in Newtons) x Height (in Meters)
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15
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what is a physical property?
A property that can be observed without changing the matter into another type of matter. Includes: Texture, hardness, luster, density
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15
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When the air pressure above a liquid increases, what happens to the amount of thermal energy need for the liquid to vaporize (boiling)?
It also increases. The temperature required to boil the liquid gets higher.
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15
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Water and CO2 in leaves is converted to oxygen and sugar: What kind of property does this describe?
A chemical property because the water and CO2 are CHANGING into sugar and oxygen. They become something different from what they originally were.
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banana
Go to last place!
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magnet
Take 25 points!
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rocket
Go to first place!
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lifesaver
Give 5 points!
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15
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What is a compound?
2 or more atoms of at least 2 different elements bonded together (Micro)
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How is a molecule different from a compound?
A molecule is may only be made of one element, whereas a compound will always have at least 2 elements.
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15
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What is elastic potential energy?
the energy of objects that can be compressed or stretched. Stored in such things as a Slinky, a spring, or a bungee cord, or a rubber ball.
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15
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How do the particles in a solid behave?
They can't freely move past each other but they vibrate in place.
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What is the difference in evaportion and boiling?
Boiling happens everywhere in the liquid. Evaporation happens on the surface of a liqui
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