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Why will these ice samples not melt at the same rate even when they are exposed to the same amount of heat?
 
Adding heat will increase the kinetic energy at different rates b/c of mass
 
Adding heat will increase the kinetic energy at the same rate b/c of mass
If the same amount of thermal energy is added to these ice samples, which will melt first and why?
 
Ice sample 1 because with less mass, kinetic energy will rise faster
 
Ice sample 3 because with more mass, kinetic energy will rise faster
What state of matter is shown below?
 
Liquid
 
Solid
 
Gas
What state of matter is shown below?
 
Gas
 
Solid
 
Liquid
What state of matter is shown below?
 
Solid
 
Gas
 
Liquid
What state of matter is shown below?
 
Gas
 
Solid
 
Liquid
What state of matter is shown below?
 
Solid
 
Liquid
 
Gas
What state of matter is shown below?
 
Liquid
 
Solid
 
Gas
DEPENDENT VARIABLE - CHANGE IN RESPONSE TO IND. VARIABLE Which statement below would be a dependent variable?
 
Test score on the phase change critical juncture
 
Time studying for the phase change critical juncture
INDEPENDENT VARIABLE - YOU CONTROL Which statement below would be an independent variable
 
Time studying for the phase change critical juncture
 
Test score on the phase change critical juncture
Using the pattern shown in the table, what would you expect the temperature increase to be of a 300 g sample?
 
6 <sup>o</sup>F
 
12 <sup>o</sup>F
 
6 <sup>o</sup>2
 
0 <sup>o</sup>F
Lulu heated up 3 identical containers on a stove and recorded their increase in temperature. What explains the results?
 
The same energy was added to all &amp; the increas was proportional to the mass
 
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
Before leaving home, the pool was 21o C. Later, the pool was warmer. What happened to the molecules?
 
they started moving faster
 
they got closer together
 
they lost cold molecules
 
they became larger
Grandma's pan is made of aluminum. When are the molecules in the pan moving?
 
they are always moving
 
they are moving when she heats the pan up
 
they are moving when she cools the pan down
 
they are never moving
How does kinetic energy change if molecules move faster?
 
it would increase
 
it would not change
 
it would decrease
 
it would depend on the molecule
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
 
pink has stronger 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
What happens to molecules when their kinetic energy decreases?
 
they move slower
 
they move faster
 
they get heavier
 
it would depend on the type of molecule
What happens to molecules when kinetic energy increases?
 
they move faster
 
they move slower
 
they defy gravity
 
they stay the same
Which object below has molecules that are moving?
 
both have moving molecules
 
the glass of water
 
the ocean wave
 
neither has moving molecules
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 in place
 
substance 1 had weaker attraction; molecules now move around each other
 
substance 1 had stronger attraction; molecules now move away from each oth
JT has a substance moving in place in a closed container. What happens if he transfers heat into the closed container?
 
molecules move faster and the substance would be a liquid
 
molecules move faster and the substance would be a solid
 
molecules move slower and the substance would be a solid
 
molecules move slower and the substance would be a liquid
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 away from each other
 
molecules were moving in place then moving around each other
 
molecules were moving around each other then moving in place
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