KS3 Unit 8i – Heating and Cooling 1© NTScience.co.uk 2005

Heating and Cooling

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Q1. What type of energy is due to the motion of

the atoms in a material?

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A1. Heat

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Q2. What do we call a decrease in

temperature?

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A2. Cooling

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Q3. How does heat move through a metal

bar?

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A3. Conduction

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Q4. How is heat transferred from bottom to top of a room or an

ocean?

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A4. Convection

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Q5. How does energy reach the earth from the

sun?

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A5. Radiation

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Q6. What type of material transmits heat

easily?

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A6. A good thermal conductor

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Q7. What type of material transmits heat

slowly?

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A7. A good thermal insulator

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Q8. What do we call a measure of the average

kinetic energy of the particles in a substance?

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A8. Temperature

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Q9. Name an instrument used to measure

temperature?

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A9. Thermometer

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Q10. Name a plastic often used as a thermal insulator in its expanded

form

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A10. Polystyrene

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Q11. What word means something that can

ignite (catch fire) easily?

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A11. Flammable

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Q12. Name a commonly used temperature scale based on the freezing and boiling points of

water?

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A12. Celsius

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Q13. What do we call an increase in length, area or volume, often due to

an increase in temperature?

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A13. Expansion

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Q14. What is the scientific term for

"Heaviness", something's mass

divided by its volume?

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A14. Density

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Q15. What word means to move or rest on the

surface of a fluid because of its lower

density?

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A15. Float

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Q16. What word means to take in something, for

example heat or light.

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A16. Absorb

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Q16. What word means to bounce sound or light

from a surface, for example.

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A16. Reflect

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