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WorksheetsPhase Change Summative Assessment Review Quizizz
Total questions: 40
Worksheet time: 51mins
A car mechanic had a sealed bucket containing a substance in the gas phase. She left the bucket outside over the weekend. When she returned, the substance had changed phase, and the substance was in the liquid phase. What happened to the molecules of this substance?
Before the mechanic left, the molecules were moving away from each other. When she returned, they were moving around each other.
Before the mechanic left, the molecules were moving in place. When she returned, they were moving around each other.
Before the mechanic left, the molecules were moving around each other. When she returned, they were moving away from each other.
A cook had a jar containing a sweet food and a jar containing a sour food. The image above shows the sweet and sour foods. At room temperature, both foods are liquids. The same amount of energy was transferred out of both substances. Later, one of the foods had changed phase while the other had not. Which food changed phase, and how did it change?
The sweet food changed because the molecules were able to move fast enough to overcome the attraction between them. Its molecules now move away from each other.
The sweet food changed because the strong attraction between molecules made their movement slower. Its molecules now move in place.
The sour food changed because the weak attraction between molecules let them move faster. Its molecules now move away from each other.
The sour food changed because the molecules were able to move fast enough to overcome the attraction between them. Its molecules now move in place.
Refrigerators are able to transfer energy out of a substance. At first, the substance is a liquid. The refrigerator changes the phase of the substance by transferring energy out of it. How does this change affect the substance’s molecules?
After the phase change, the molecules move . . .
slower, and they move away from each other.
slower, and they move in place.
faster, and they move around each other.
faster, and they move in place.
Two different cars, the Model S and Model T, use different substances in their engines. The image above shows the two substances. At room temperature, both substances are liquids. A car mechanic transferred the same amount of energy out of the two containers, but only one substance changed phase. Which car’s substance changed phase, and how did it change?
The Model T’s substance changed phase because the attraction of the molecules was able to overcome their slower movement. Its molecules now move in place.
The Model T’s substance changed phase because the strong attraction between the molecules made their movement slower. Its molecules now move in place.
The Model S’s substance changed phase because the weak attraction between the molecules allowed them to move faster. Its molecules now move around each other.
The Model S’s substance changed phase because the attraction was able to overcome the slower molecules. Its molecules now move away from each other.
Substance A and B are both liquid. Which will become a gas more easily if energy is added?
Substance A because its molecules will be able to move fast enough to overcome the attraction between them. Its molecules now move away from each other.
Substance B because its molecules will be able to move fast enough to overcome the attraction between them. Its molecules now move away from each other.
Substance A because the weak attraction between its molecules allowed them to move faster. Its molecules now move away from each other.
Substance B because the weak attraction between its molecules allowed them to move faster. Its molecules now move away from each other.
At room temperature, both substances are liquids. A scientist transfers the same amount of energy into both substances. One substance changes phase, but the other does not. Which chemical changed phase, and why did it change?
Substance A because its molecules will be able to move fast enough to overcome the attraction between them. Its molecules now move away from each other.
Substance B because its molecules will be able to move fast enough to overcome the attraction between them. Its molecules now move away from each other.
Substance A because the weak attraction between its molecules allowed them to move faster. Its molecules now move away from each other.
Substance B because the weak attraction between its molecules allowed them to move faster. Its molecules now move away from each other.
You discover two new substance on Mars. At room temperature, both substances are liquid. You then transferred the same amount of energy out of both substances. When a scientist checked again, Substance 1 had changed phase, but Substance 2 had not. How are Substances 1 and 2 different?
Substance 1 has a . . .
weaker attraction between its molecules than Substance 2. Its molecules now move in place.
weaker attraction between its molecules than Substance 2. Its molecules now move around each other.
stronger attraction between its molecules than Substance 2. Its molecules now move away from each other.
stronger attraction between its molecules than Substance 2. Its molecules now move in place.
Workers find two substances. One is a toxic chemical. The other is a safe chemical. Both chemicals are liquids at room temperature. As a test, the workers transfer the same amount of energy out of the two containers and find that only the toxic chemical changes phase. How is the toxic chemical different from the safe chemical?
weaker attraction between its molecules than the safe chemical. Its molecules now move in place.
weaker attraction between its molecules than the safe chemical. Its molecules now move around each other.
stronger attraction between its molecules than the safe chemical. Its molecules now move away from each other.
stronger attraction between its molecules than the safe chemical. Its molecules now move in place.
Detectives find two substances at a crime scene. One is a poison, and the other is a cleaning chemical. At room temperature, both substances are liquids. To test the substances, the detectives transfer the same amount of energy into both substances, but only the cleaning chemical changes phase. How is the cleaning chemical different from the poison?
The cleaning chemical has a . . .
weaker attraction between its molecules than the poison. Its molecules now move in place.
weaker attraction between its molecules than the poison. Its molecules now move away from each other.
stronger attraction between its molecules than the poison. Its molecules now move away from each other.
stronger attraction between its molecules than the poison. Its molecules now move around each other.
If a substance experiences melting, what happens to the molecules freedom of movement?
The molecules freedom of movement increases
The molecules freedom of movement decreases.
The molecules freedom of movement stays the same.
If a substance experiences freezing, what happens to the molecules freedom of movement?
The molecules freedom of movement increases
The molecules freedom of movement decreases.
The molecules freedom of movement stays the same.
A car mechanic had a sealed bucket containing a substance in the gas phase. She left the bucket outside over the weekend. When she returned, the substance had changed phase, and the substance was in the liquid phase. What happened to the molecules of this substance?
Before the mechanic left, the molecules were moving away from each other. When she returned, they were moving around each other.
Before the mechanic left, the molecules were moving around each other. When she returned, they were moving in place.
Before the mechanic left, the molecules were moving around each other. When she returned, they were moving away from each other.
Before the mechanic left, the molecules were moving in place. When she returned, they were moving around each other.
A chef finds a sealed container consisting of an ingredient that goes into his restaurant’s secret sauce. The ingredient’s molecules are moving in place. What will happen if the chef causes the ingredient to change phase by transferring energy into it?
After the phase change, the ingredient’s molecules will move . . .
faster, and the ingredient will be a solid.
faster, and the ingredient will be a liquid.
slower, and the ingredient will be a solid.
slower, and the ingredient will be a liquid.
Cesar and Ming were investigating a see-through container of water. Water can be a solid, liquid, or gas. At first, Cesar and Ming said the water molecules were moving in place. Later , the water molecules were moving around each other. What change did they observe to the water?
At first, the water was a gas. Later, it was a liquid.
At first, the water was a liquid. Later, it was a solid.
At first, the water was a solid. Later, it was a liquid.
At first, the water was a liquid. Later, it was a gas.
You have dropped your popsicle and are watching it become a LIQUID. Which answer BEST explains what PHASE CHANGE has occurred AND how the molecule MOVEMENT has changed?
The PHASE CHANGE that has occurred is CONDENSATION and the molecule MOVEMENT has become FASTER.
The PHASE CHANGE that has occurred is EVAPORATION and the molecule MOVEMENT has become SLOWER.
The PHASE CHANGE that has occurred is MELTNG and the molecule MOVEMENT has become FASTER.
Based on the simulation, what phase of matter did this substance START as?
Solid
Liquid
Gas
Based on the simulation, what phase of matter did this substance END as?
Solid
Liquid
Gas
What happens to molecules when their kinetic energy increases?
The molecules move slower
The molecules move faster
The molecules get heavier
It depends on the type of molecule
Three containers with the same amount of the same material are shown below. Which container has the substance with the highest amount of energy?
The container on the left
The middle container
The container on the right
All have an equal amount of energy
Three containers with the same amount of the same material are shown below. Which container has the substance with the lowest amount of energy?
The container on the left
The middle container
The container on the right
All have an equal amount of energy
As you move from solid to liquid, the speed of molecules (a)
As you move from liquid to gas the speed of molecules (a)
If a substance experiences melting, what happens to the molecules freedom of movement?
The molecules freedom of movement increases
The molecules freedom of movement decreases.
The molecules freedom of movement stays the same.
If a substance experiences freezing, what happens to the molecules freedom of movement?
The molecules freedom of movement increases
The molecules freedom of movement decreases.
The molecules freedom of movement stays the same.
As kinetic energy increases, speed ___________.
Increases
Decreases
Stays the same
As temperature decreases, the speed of the molecules _______.
Increases
Decreases
Stays the same
You are looking at a substance in a sealed jar. At first the substance's molecules are moving around each other. What will happen if you transfer energy into the substance and causes a phase change?
After the phase change, the substance’s molecules will move . . .
faster, and the substance will be a liquid.
faster, and the substance will be a gas.
slower, and the substance will be a solid.
slower, and the substance will be a liquid.
A scientist is looking at a sealed container. At first the substance's molecules are in place. What will happen if you transfer energy into the substance and causes a phase change?
After the phase change, the substance’s molecules will move . . .
faster, and the substance will be a liquid.
faster, and the substance will be a gas.
slower, and the substance will be a solid.
slower, and the substance will be a liquid.
You are looking at an ice cube. At first the substance's molecules are in place. What will happen if you transfer energy into the substance and causes a phase change?
After the phase change, the substance’s molecules will move . . .
faster, and the substance will be a liquid.
faster, and the substance will be a gas.
slower, and the substance will be a solid.
slower, and the substance will be a liquid.
A scientist is looking at a sealed container. At first the substance's molecules are moving away from each other. What will happen you transfer energy out of the substance and causes a phase change?
After the phase change, the substance’s molecules will move . . .
faster, and the substance will be a liquid.
faster, and the substance will be a gas.
slower, and the substance will be a solid.
slower, and the substance will be a liquid.
You are looking at a sealed container. At first the substance's molecules are moving around each other. What will happen you transfer energy out of the substance and causes a phase change?
After the phase change, the substance’s molecules will move . . .
faster, and the substance will be a liquid.
faster, and the substance will be a gas.
slower, and the substance will be a solid.
slower, and the substance will be a liquid.
You are looking at an unknown substance that is blue. At first the substance's molecules are moving around each other. What will happen you transfer energy out of the substance and causes a phase change?
After the phase change, the substance’s molecules will move . . .
faster, and the substance will be a liquid.
faster, and the substance will be a gas.
slower, and the substance will be a solid.
slower, and the substance will be a liquid.
A scientist is looking at a sealed container. At first the substance's molecules are moving away from each other. What will happen you transfer energy out of the substance and causes a phase change?
After the phase change, the substance’s molecules will move . . .
faster, and the substance will be a liquid.
faster, and the substance will be a gas.
slower, and the substance will be a solid.
slower, and the substance will be a liquid.
