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Understanding Heat Transfer, Conduction, Convection and Radiation
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Why are shiny foil blankets wrapped around marathon runners at the end of a race?

The shiny metal reflects the heat radiation from the runner back in, this stops the runner getting cold.

Slide 19

1. Which of the following is not a method of heat transfer?

1. Which of the following is not a method of heat transfer?

A. Radiation

B. Insulation

C. Conduction

D. Convection

Slide 20

2. In which of the following are the particles closest together?

2. In which of the following are the particles closest together?

A. Solid

B. Liquid

C. Gas

D. Fluid

Slide 21

3. How does heat energy reach the Earth from the Sun?

3. How does heat energy reach the Earth from the Sun?

A. Radiation

B. Conduction

C. Convection

D. Insulation

Slide 22

4. Which is the best surface for reflecting heat radiation?

4. Which is the best surface for reflecting heat radiation?

A. Shiny white

B. Dull white

C. Shiny black

D. Dull black

Slide 23

5. Which is the best surface for absorbing heat radiation?

5. Which is the best surface for absorbing heat radiation?

A. Shiny white

B. Dull white

C. Shiny black

D. Dull black

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