Sample Temperature (°C)

Question

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

3
3

1
1

4
4

2

Answer 1

The sample with the lowest temperature will have the lowest kinetic energy, as temperature is directly related to the average kinetic energy of the particles in a substance.

From the given data:

• Sample 1: 98.2 °C
• Sample 2: 46.0 °C
• Sample 3: 100.6 °C
• Sample 4: 31.4 °C

Sample 4 has the lowest temperature at 31.4 °C. Therefore, it has the lowest kinetic energy.

The correct response is: 4

Answer 2

Question
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.

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.

Cold air is moving into the room from outside.
Cold air is moving into the room from outside.

The density of the air is lower on the inside than on the outside.

Answer 3

The correct statement explaining why the room starts to feel cooler when a window is opened on a cold day is:

Cold air is moving into the room from outside.

This is because when the window is opened, the cold air from outside enters the room, displacing the warmer air inside, leading to a drop in temperature and making the room feel cooler.

Answer 4

A student takes the temperature of a bottle of liquid water and a tub filled with ice. The student then places the bottle of liquid water into the tub of ice. After 15 minutes, which of the follow best describes what happens to the temperature of each?
(1 point)
Responses

Both the bottle and the ice stay the same temperature
Both the bottle and the ice stay the same temperature

The temperature of the ice increases, while the temperature of the water decreases
The temperature of the ice increases, while the temperature of the water decreases

The temperature of the ice decreases, while the temperature of the water increases
The temperature of the ice decreases, while the temperature of the water increases

The temperature of both the ice and water decrease.

Answer 5

The correct statement that best describes what happens to the temperature of each after 15 minutes is:

The temperature of the ice increases, while the temperature of the water decreases.

When the bottle of water is placed in the tub of ice, heat transfers from the warmer water to the colder ice. As a result, the temperature of the water decreases, while the ice absorbs that heat and its temperature increases as it begins to melt.