Water boils at 100°C and turns into steam. Which similarities or differences are there between water at 100°C and steam at 100°C? (1 point)
Responses
The particles will have more space between them as steam, but they will be moving at the same speed in both states.
The particles will have more space between them as steam, but they will be moving at the same speed in both states.
The particles will have more space between them as a liquid, but they will be moving at the same speed in both states.
The particles will have more space between them as a liquid, but they will be moving at the same speed in both states.
The particles will have more space between them and will be moving at higher speeds as steam.
The particles will have more space between them and will be moving at higher speeds as steam.
The particles will have more space between them as a liquid, but they will be moving faster as steam.
The correct response is: The particles will have more space between them and will be moving at higher speeds as steam.
An ice cube tray full of water is put into a freezer. Which energy change occurs in the particles in the water as it undergoes a phase change from a liquid to a solid?(1 point)
Responses
The potential energy decreases due to the tighter arrangement of the particles.
The potential energy decreases due to the tighter arrangement of the particles.
The potential energy increases due to the tighter arrangement of the particles.
The potential energy increases due to the tighter arrangement of the particles.
The potential energy decreases due to the looser arrangement of the particles.
The potential energy decreases due to the looser arrangement of the particles.
The potential energy increases due to the looser arrangement of the particles.
The correct response is: The potential energy decreases due to the tighter arrangement of the particles.
An increase in thermal energy leads to _____(1 point)
Responses
an increase in heat and a decrease in kinetic energy until a phase change occurs.
an increase in heat and a decrease in kinetic energy until a phase change occurs.
a decrease in heat and a decrease in kinetic energy until a phase change occurs.
a decrease in heat and a decrease in kinetic energy until a phase change occurs.
an increase in heat and an increase in kinetic energy until a phase change occurs.
an increase in heat and an increase in kinetic energy until a phase change occurs.
a decrease in heat and an increase in kinetic energy until a phase change occurs.
The correct response is: an increase in heat and an increase in kinetic energy until a phase change occurs.
A student wants to collect data during an experiment about the transfer of kinetic energy in a sample of water and ice. Which tool will help her collect the necessary data?(1 point)
Responses
meter stick
meter stick
thermometer
thermometer
graduated cylinder
graduated cylinder
balance
The correct response is: thermometer.
Use the table to answer the question.
Sample Temperature (°C)
1 98.2
2 46.0
3 100.6
4 31.4
A student records the temperature of several water samples as shown in the table. Other than the temperature, the water samples are the same. Which sample has the lowest kinetic energy?
(1 point)
Responses
2
2
4
4
3
3
1
The correct response is: 4
A teacher opens a window on a cold day. Which statement explains why the room starts to feel cooler? (1 point)
Responses
The kinetic energy of the air molecules outside is higher than the kinetic energy of the air molecules inside.
The kinetic energy of the air molecules outside is higher than the kinetic energy of the air molecules inside.
Cold air is moving into the room from outside.
Cold air is moving into the room from outside.
Air moves from the areas of higher temperature to areas of lower temperature.
Air moves from the areas of higher temperature to areas of lower temperature.
The density of the air is lower on the inside than on the outside.