Examples of energy transfer

Question 1

Which of the following is NOT a form of energy transfer?
A. Conduction
B. Insulation
C. Convection
D. Radiation

Answer 1

B. Insulation

Question 2

What type of energy transfer occurs when a pan is placed on a hot stove?
A. Conduction
B. Insulation
C. Convection
D. Radiation

Answer 2

A. Conduction

Question 3

Which form of energy transfer involves the movement of particles in a fluid?
A. Conduction
B. Insulation
C. Convection
D. Radiation

Answer 3

C. Convection

Question 4

What form of energy transfer occurs through electromagnetic waves?
A. Conduction
B. Insulation
C. Convection
D. Radiation

Answer 4

D. Radiation

Question 5

How does the transfer of energy by conduction differ from convection?
A. Conduction requires a medium, while convection does not.
B. Convection involves direct contact, while conduction does not.
C. Conduction transfers energy through electromagnetic waves.
D. Convection only occurs in solids, while conduction only occurs in liquids and gases.

Answer 5

A. Conduction requires a medium, while convection does not.

Question 6

Which of the following materials is a good conductor of heat?
A. Rubber
B. Plastic
C. Metal
D. Wood

Answer 6

C. Metal

Question 7

In which form of energy transfer do particles vibrate to pass on heat energy?
A. Conduction
B. Insulation
C. Convection
D. Radiation

Answer 7

A. Conduction

Question 8

Which type of energy transfer can occur in a vacuum?
A. Conduction
B. Insulation
C. Convection
D. Radiation

Answer 8

D. Radiation

Question 9

What role does insulation play in energy transfer?
A. It facilitates conduction.
B. It enhances convection.
C. It blocks radiation.
D. It slows down energy transfer by reducing heat loss.

Answer 9

D. It slows down energy transfer by reducing heat loss.

Question 10

How does radiation differ from convection and conduction?
A. Radiation involves electromagnetic waves, while convection and conduction involve particles.
B. Convection transfers energy in a vacuum, while radiation requires a medium.
C. Conduction only occurs in liquids, while radiation occurs in gases.
D. Radiation is only effective on solid surfaces, while convection involves fluids.

Answer 10

A. Radiation involves electromagnetic waves, while convection and conduction involve particles.

Question 11

Which of the following is an example of a system that uses radiation for energy transfer?
A. Freezer
B. Central heating system
C. Solar panel
D. Fireplace

Answer 11

C. Solar panel

Question 12

How does energy transfer through convection in the atmosphere affect weather patterns?
A. It increases wind speeds.
B. It traps heat in the atmosphere.
C. It causes tornadoes and hurricanes.
D. It redistributes heat around the Earth

Answer 12

D. It redistributes heat around the Earth

Question 13

What is the primary reason why wearing dark colours in the sun makes you feel hotter?
A. Dark colours absorb more radiation.
B. Dark colours reflect more radiation.
C. Dark colours conduct heat faster.
D. Dark colours increase insulation.

Answer 13

A. Dark colours absorb more radiation.

Question 14

Why is convection an important process in cooking food in a pot of boiling water?
A. It prevents the food from burning.
B. It evenly heats the food through the movement of fluid.
C. It reduces the cooking time.
D. It increases the boiling point of the water.

Answer 14

B. It evenly heats the food through the movement of fluid

Question 15

How does a vacuum flask reduce heat transfer compared to a regular flask?
A. By using radiation to trap heat.
B. By increasing conduction in the flask.
C. By decreasing convection in the liquid.
D. By preventing heat transfer through convection and conduction

Answer 15

D. By preventing heat transfer through convection and conduction