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15
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Two substances were in liquid form and got energy transferred out. Substance 1 changed, but substance 2 didn't. Why?
substance 1 had stronger attraction; molecules now move in place
substance 1 had weaker attraction; molecules now move around each other
substance 1 had weaker attraction; molecules now move in place
substance 1 had stronger attraction; molecules now move away from each oth
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15
×
What happens to molecules when kinetic energy increases?
they stay the same
they defy gravity
they move faster
they move slower
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lifesaver
Give 20 points!
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star
Double points!
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gift
Win 25 points!
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banana
Go to last place!
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15
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What state of matter is shown below?
Solid
Liquid
Gas
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seesaw
Swap points!
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star
Double points!
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shark
Other team loses 10 points!
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lifesaver
Give 5 points!
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lifesaver
Give 25 points!
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seesaw
Swap points!
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gift
Win 15 points!
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thief
Give points!
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25
15
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INDEPENDENT VARIABLE - YOU CONTROL Which statement below would be an independent variable
Test score on the phase change critical juncture
Time studying for the phase change critical juncture
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15
×
Lulu heated up 3 identical containers on a stove and recorded their increase in temperature. What explains the results?
More energy was added to the 100 g sample so it increased more
More energy was added to the 400 g sample because it had more mass
Energy was removed from the 400 g sample to give it a lower temperature
The same energy was added to all & the increas was proportional to the mass
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15
×
What state of matter is shown below?
Liquid
Solid
Gas
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15
×
I have pink and blue liquid. Both have energy transferred in to them. Only the pink changes phase. Why?
pink has weaker attraction; now the molecules move away from each other
blue has weaker attraction; now the molecules move away in place
there is not enough information to answer this question
pink has stronger attraction; now the molecules move away from each other
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15
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How does kinetic energy change if molecules move faster?
it would increase
it would decrease
it would not change
it would depend on the molecule
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15
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DEPENDENT VARIABLE - CHANGE IN RESPONSE TO IND. VARIABLE Which statement below would be a dependent variable?
Time studying for the phase change critical juncture
Test score on the phase change critical juncture
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15
×
Ty had a container of a substance in the gas phase. He left it outside. Upon returning, it was a liquid. What happened?
molecules were moving away from each other then moving around each other
molecules were moving around each other then moving in place
molecules were moving in place then moving around each other
molecules were moving around each other then moving away from each other
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15
×
Grandma's pan is made of aluminum. When are the molecules in the pan moving?
they are never moving
they are moving when she heats the pan up
they are moving when she cools the pan down
they are always moving
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15
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What happens to molecules when their kinetic energy decreases?
they get heavier
it would depend on the type of molecule
they move slower
they move faster
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15
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JT has a substance moving in place in a closed container. What happens if he transfers heat into the closed container?
molecules move slower and the substance would be a liquid
molecules move slower and the substance would be a solid
molecules move faster and the substance would be a solid
molecules move faster and the substance would be a liquid
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