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REVIEW J.U2L2-Changes Of State
Test Description: Quiz prep
Instructions: Answer all questions to get your test result.
1) Which phrase describes the changes that take place when a gas condenses?
A
gain of energy and decreased freedom of particle motion
B
loss of energy and increased freedom of particle motion
C
gain of energy and increased freedom of particle motion
D
loss of energy and decreased freedom of particle motion
2) Which of these could represent the temperature values of a liquid X, a boiling liquid Y, and a gas Z?
A
X = −50; Y = −100; Z = −50
B
X = −50; Y = −100; Z = −150
C
X = 50; Y = 100; Z = 150
D
X = 50; Y = 100; Z = 50
3) If you were to model the water particles before and after deposition, how would they compare?
A
Before deposition, the particles slide by each other; after deposition, they vibrate in place.
B
Before deposition, the particles vibrate in place; after deposition, they slide by each other.
C
Before deposition, the particles vibrate in place; after deposition, they move quickly in all directions.
D
Before deposition, the particles move quickly in all directions; after deposition, they vibrate in place.
4) Which energy transfer takes place when water freezes to form ice crystals in the atmosphere?
A
Energy is transferred from the water into the ground.
B
Energy is transferred from the air into the water.
C
Energy is transferred from warmer ice crystals to colder ones.
D
Energy is transferred from the water into the air.
5) What change of state occurred to a substance in a beaker, when thermal energy was added?
A
The substance changed from a gas to a liquid.
B
The substance changed from a liquid to a solid.
C
The substance changed from a gas to a solid.
D
The substance changed from a liquid to a gas.
6) A beaker of ice and water are warming on a hot plate. How is the liquid water, as it is warming, different from the ice?
A
The temperature of the liquid water is lower.
B
The motion of the particles that make up the water is slower.
C
The average kinetic energy of the ice particles is lower.
D
The freezing point of the ice is lower.
7) What type of change would you expect the heated ice to undergo?
A
a physical and chemical change because it will change state
B
a physical and chemical change because it will form a new substance
C
a purely physical change because it will change state
D
a purely physical change because it will form a new substance
8) Compare the speeds of particles in ice, water, and air.
A
free, slow, mobile
B
slow, free, slow
C
mobile, free, slow
D
slow, mobile, free
9) Describe how you would sketch the spacing and motion of the molecules in the gas state above the liquid surface. Balls=molecules, long arrows=fast motion.
A
balls far apart with long arrows between them
B
balls stuck together, long arrows
C
balls close together with short arrows between them
D
balls stuck on the bottom of the beaker, no arrows
10) Explain what happens to mercury atoms due to added thermal energy, during the time in which temperature stays the same.
A
solid mercury is cooling down
B
gaseous mercury is becoming liquid
C
liquid mercury is becoming solid
D
a phase change is taking place
*select an answer for all questions
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