Which energy transformation takes place when a lamp with a light bulb is plugged into a working wall socket?(1 point)
Responses
chemical to light
chemical to light
electrical to light
electrical to light
chemical to electrical
chemical to electrical
electrical to chemical
electrical to light
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
graduated cylinder
graduated cylinder
balance
balance
thermometer
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
1
1
2
2
4
4
3
3
Thermal Energy Unit Test
6 of 96 of 9 Items
Question
Use the picture to complete the statement.
An illustration shows convection currents in water, with the warm water rising upward, and the cold water moving down to the bottom.
The arrows in the pot represent _____.
(1 point)
Responses
radiation
radiation
convection
convection
conduction
conduction
waves
waves
convection
A teacher opens a window on a cold day. Which statement explains why the room starts to feel cooler? (1 point)
Responses
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.
The density of the air is lower on the inside than on the outside.
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.
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
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 both the ice and water decrease.
The temperature of both the ice and water decrease.
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
Both the bottle and the ice stay the same temperature