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Homework exercises on Heat for a Physical Science course. Also refer to Physics, thermodynamics, temperature, Thermometer, expansion, WBT, education, distance learning, Ron Kurtus, School for Champions. Copyright © Restrictions

Heat - Homework Answers

After you have completed the Heat Homework, you can refer to these answers. Although it is better to have known the answer from your reading, the process of writing the correct answer on your homework sheet will help you remember the concepts.

1. What is heat?

Heat is the total energy of moving molecules in an object. 

2. What property of liquids are used in a thermometer?

.Liquids expand with increasing temperature.

3. How does a bimetal thermometer work?

.Different metals expand at different rates, causing the bimetal strip to bend and make electrical contact..

4. What are the boiling and freezing points of water on a Fahrenheit scale thermometer?  On a Celsius thermometer?

212 degrees F, 32 degrees F, 100 degrees C and 0 degrees C.

5. What does Absolute Zero mean?

.The temperature when matter stops moving and it has no kinetic energy

6. Why is the Kelvin scale used in science?

Absolute Zeros is a logical starting point for studying motion and energy..

7. What is the difference between temperature and amount of heat energy?

.Temperature is the average energy and heat is the total energy.

8. What are the different states of water?

Solid (ice), liquid (water), and gas (steam).

9. Why does a gas expand when heated?

Increased energy causes increased pressure to move outward..

10. Give examples of the different ways heat is transferred in your home.

Convection from a heater, radiation from a heat lamp, and conduction in hot water.

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