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Agree with your first answer, but what are your choices for the other questions?
1. A bottle of water is taken out of a refrigerator and put on a kitchen table. As the bottle of water warms up, what happens to the particles in the water?
a The average kinetic energy of the particles increases. ***
b The average temperature of the particles increases.
c The average space between particles decreases.
d The average potential energy of the particles decreases.
2. Ice and water in a glass are at the same temperature. What other similarities or differences are there between the water and the ice?
a All of the particles will have the same potential energy, but the particles in the water will have more kinetic energy.
b All of the particles will have the same kinetic energy, but the particles in the water will have more potential energy.
c All of the particles will have the same potential energy, but the particles in the ice will have more kinetic energy.
d All of the particles will have the same kinetic energy, but the particles in the ice will have more potential energy.
3. Which change occurs due to the addition of thermal energy to a substance?
a There is a decrease in the kinetic energy of its particles and a decrease in temperature.
b There is a decrease in the kinetic energy of its particles and an increase in temperature.
c There is an increase in the kinetic energy of its particles and an increase in temperature.
d There is an increase in the kinetic energy of its particles and a decrease in temperature.
4. Liquid water becomes a gas at a certain temperature. Which changes will occur in the molecules of water?
a The molecules will have more kinetic energy because they will be moving faster.
b The molecules will have more kinetic energy because they will be farther apart.
c The molecules will have more potential energy because they will be moving faster.
d The molecules will have more potential energy because they will be farther apart.
5. A student measures the temperature of four samples of water. Which sample has water particles that have the greatest average kinetic energy?
Sample Temperature (ºC) Volume (mL)
1 15 30
2 8 30
3 22 30
4 4 30
a 4
b 1
c 3
d 2
6. A student sets up four cups with 40 mL of water in each and adds different amounts of ice to each cup. The student measures the temperature of the water before and after the ice melts in each cup. Which statement describes how the student can determine the connection between the temperature change and the transfer of kinetic energy?
a The cup with the greatest temperature change has the least transfer of kinetic energy, and this transfer occurs from the water to the ice.
b The cup with the greatest temperature change has the least transfer of kinetic energy, and this transfer occurs from the ice to the water.
c The cup with the greatest temperature change has the greatest transfer of kinetic energy, and this transfer occurs from the water to the ice.
d The cup with the greatest temperature change has the greatest transfer of kinetic energy, and this transfer occurs from the ice to the water.
7. Which state of matter has the most energy?
a plasma
b solid
c gas
d liquid
8. A student adds ice to four identical cups of water. The mass of ice added is shown in the table. Which cup will have the greatest change in temperature?
Cup Number Ice Added (grams)
1 22.1
2 105.3
3 19.0
4 58.0
a 1
b 3
c 2
d 4
9. What happens to water molecules as water is heated?
a The molecules sink.
b The molecules get closer together.
c The molecules move more slowly.
d The molecules become less dense.
10. A cook places a pot of water over a flame on a stove. What will happen to the water molecules near the surface of the water?
a They will become more dense and sink.
b They will become less dense and sink.
c They will become more dense and rise.
d They will become less dense and rise.
11. Which option is an example of a transfer of heat by radiation?
a people warming up near a campfire
b soup being heated in a bowl in the microwave
c a metal spoon in a cup of tea becoming hot
d ice melting in a glass of warm water
12. Which property makes a substance a good conductor of heat?
a if its particles are unlikely to bump together
b if heat is unlikely to escape to its surroundings
c if heat moves through it quickly
d if its particles are farther apart
4 answers
1. The average kinetic energy of the particles increases.
2. All of the particles will have the same kinetic energy, but the particles in the water will have more potential energy.
3. There is an increase in the kinetic energy of its particles and an increase in temperature.
4. The molecules will have more potential energy because they will be farther apart.
5. 3
6. The cup with the greatest temperature change has the greatest transfer of kinetic energy, and this transfer occurs from the water to the ice.
7. plasma
8. 2
9. The molecules become less dense.
10. They will become more dense and sink.
11. people warming up near a campfire
12. if heat moves through it quickly
2. All of the particles will have the same kinetic energy, but the particles in the water will have more potential energy.
3. There is an increase in the kinetic energy of its particles and an increase in temperature.
4. The molecules will have more potential energy because they will be farther apart.
5. 3
6. The cup with the greatest temperature change has the greatest transfer of kinetic energy, and this transfer occurs from the water to the ice.
7. plasma
8. 2
9. The molecules become less dense.
10. They will become more dense and sink.
11. people warming up near a campfire
12. if heat moves through it quickly
Ash is right
you can trust ash
6 answers