Radiation

Question 1

Which best illustrates the way in which radiation transfers thermal energy?

Revolt · Accepted Answer

A red ball at left labeled warm does not touch a blue ball labeled cool at right. Curved arrows point from the red ball to the blue ball.

Question 2

Which best explains how radiation is helpful in the plastics industry?

Revolt · Accepted Answer

It makes plastics easier to shape.

Question 3

A farmer places unhatched chicken eggs under a heat lamp. How does the radiation help the eggs?

Revolt · Accepted Answer

It keeps the eggs warm until they hatch.

Question 4

Why is thermal energy from the Sun transferred to Earth through electromagnetic waves instead of any other type of thermal energy transfer?

Revolt · Accepted Answer

Electromagnetic waves can travel through empty space.

Question 5

Which refers to a diagram that shows thermal energy being released by objects?

Revolt · Accepted Answer

thermogram

Question 6

Which material would result in the greatest amount of energy transfer?

Revolt · Accepted Answer

An absorber that is dark in color and rough.

Question 7

Which refers to a material that takes in the energy of a wave when the wave hits it?

Revolt · Accepted Answer

absorber

Question 8

Which best explains how thermal energy is transferred when someone holds a hand above a fire?

Revolt · Accepted Answer

It is transferred by radiation and convection.

Question 9

How does radiation help treat cancer?

Revolt · Accepted Answer

It heats up the cancer cells and weakens them.

Question 10

Car manufacturers use radiation for which task?

Revolt · Accepted Answer

drying paint

Radiation Answers