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Free Exam: Science - Heat

Number of Questions in Test: 20
Number of Questions in Preview: 5
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Question 1

Since solids, liquids, and gases usually expand when heated and contract when cooled, almost any substance could be used in a thermometer.

Type: True/False
Points: 1

Question 2

________________________________ can be used to measure temperature in an appliance, such as a furnace, or in a room. They can also switch appliances on or off at a preset temperature. ________________________________ use the expansion and contraction of solids to measure temperature. They contain a strip of two metals (called a bimetallic strip). When heated or cooled, the two metals expand or contract by different amounts, causing the strip to bend. The amount of bending depends on the temperature. It provides a measure of the temperature.

Type: Multiple choice
Points: 1
Randomize answers: No

Question 3

_____________________________ don't use the expansion or contraction of a solid, a liquid, or a gas to measure temperature, they use electricity. By measuring the amount of electricity that flows through the meter, you can measure the temperature of the metal wires.

Type: Multiple choice
Points: 1
Randomize answers: No

Question 4

__________________________ use the expansion and contraction of a liquid to measure temperature. The liquid in the bulb (usually ethyl alcohol with colouring added) expands when it is warmed and is forced up the narrow bore on its temperature. The more the liquid cools. It contracts, dropping lower in the bore.

Type: Multiple choice
Points: 1
Randomize answers: No

Question 5

__________________________ use expansion and contraction of a liquid to measure temperature. They are sensitive to very small changes in temperature and are able to measure temperatures only within a few degrees.

Type: Multiple choice
Points: 1
Randomize answers: No

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