Lab: Thermal Energy Transfer — Unit test Answers
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1
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Which best illustrates the way in which radiation transfers thermal energy?
A
A red ball at left labeled warm does not touch a blue ball labeled cool at right. Curved arrows point from the blue ball to the red ball.
B
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.
C
A red ball at left labeled warm touches a blue ball labeled cool at right. Straight arrows point from the blue ball to the red ball.
D
A red ball at left labeled warm touches a blue ball labeled cool at right. Straight arrows point from the red ball to the blue ball.
2
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Which refers to a material that causes a wave to bounce off of it?
A
absorberB
reflectorC
conductorD
insulator3
The owner of a window-treatment company wants to design shades that will cover the windows of a house. The shades should also warm the house by maximizing the absorption of solar energy coming through the windows.
A
black and texturedB
black and smoothC
white and texturedD
white and smooth4
Which best explains how radiation is helpful in the plastics industry?
A
It makes plastics easier to shape.B
It adds a protective layer to plastic.C
It decreases the melting point of plastic.D
It improves the strength and durability of plastic.5
How does radiation help treat cancer?
A
It cools down the cancer cells and weakens them.B
It cools down the non-cancerous cells and strengthens them.C
It heats up the cancer cells and weakens them.D
It heats up the non-cancerous cells and strengthens them.Did you find these answers helpful?
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