Leanna is investigating heat transfer using a metal nail and foam cup filled with hot water. First, she records the temperature of the water and nail. Next, she places the nail in the hot water for ten minutes. Finally, she removes the nail from the water and records the temperature of the water and nail. The table shows her data. How does the motion of the molecules in the nail change after the nail is placed in the hot water?

Question

Responses

Energy was transferred from the hot water to the nail through convection, causing the molecules in the nail to move faster.
Energy was transferred from the hot water to the nail through convection, causing the molecules in the nail to move faster.

Energy was transferred between the hot water and the nail through conduction, causing the molecules in the nail to move slower.
Energy was transferred between the hot water and the nail through conduction, causing the molecules in the nail to move slower.

Energy was transferred from the hot water to the nail through conduction, causing the molecules in the nail to move faster.
Energy was transferred from the hot water to the nail through conduction, causing the molecules in the nail to move faster.

Energy was transferred between the hot water and the nail through convection, causing the molecules in the nail to move slower.

Answer 1

Energy was transferred from the hot water to the nail through conduction, causing the molecules in the nail to move faster.

Answer 2

An electric fan is plugged into an outlet and the circuit completed, making the fan blades spin. Which of the following correctly describes this situation?
Responses

Mechanical energy is transformed into electrical energy.
Mechanical energy is transformed into electrical energy.

Electrical energy is transformed into mechanical energy.
Electrical energy is transformed into mechanical energy.

Electrical energy is destroyed, and mechanical energy is created.
Electrical energy is destroyed, and mechanical energy is created.

Mechanical energy is destroyed, and electrical energy is created.

Answer 3

Electrical energy is transformed into mechanical energy.

Answer 4

Kyra and Violet are camping with their family. They are roasting marshmallows over a campfire. What types of energy are released by the camp fire?
Responses

nuclear energy and electrical energy
nuclear energy and electrical energy

heat energy and light energy
heat energy and light energy

mechanical energy and magnetic energy
mechanical energy and magnetic energy

chemical energy and sound energy

Answer 5

The campfire releases heat energy and light energy.

Answer 6

How does an ice cube cause hot coffee to become cool?
Responses

Heat from the hot coffee is transferred to the ice cube through convection.
Heat from the hot coffee is transferred to the ice cube through convection.

Cold from the ice cube is transferred to the hot coffee through conduction.
Cold from the ice cube is transferred to the hot coffee through conduction.

Cold from the ice cube is transferred to the hot coffee through convection.
Cold from the ice cube is transferred to the hot coffee through convection.

Heat from the hot coffee is transferred to the ice cube through conduction.

Answer 7

Cold from the ice cube is transferred to the hot coffee through conduction.

Answer 8

The picture below shows a model of a water geyser like those in Yellowstone National Park, which erupt with giant plumes of hot water. Which process drives geyser eruption?

Responses

the convection of water above the hot magma in the mantle
the convection of water above the hot magma in the mantle

the radiation of the Sun's energy into the ground water
the radiation of the Sun's energy into the ground water

the condensation of water that collects underground
the condensation of water that collects underground

the conduction of thermal energy from the ground

Answer 9

The convection of water above the hot magma in the mantle drives geyser eruption.