PHYSICS REVISION

3. a substance that flows freely but is of constant volume
5. measure of heat loss
8. Evaporation is defined as the process of a liquid changing into a gas
11. the particles that carry charge through wires in a circuit are mobile electrons
12. move from a lower position to a higher one
13. the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise
15. the quantity of mass per unit volume of a substance
16. of a smooth surface reflecting light
18. the emission of energy as electromagnetic waves or as moving subatomic particles
20. the amount of space that a substance or object occupies

1. the action of insulating something.
2. firm and stable in shape
4. an air-like fluid substance which expands freely to fill any space available
6. a stable subatomic particle with a charge of negative electricity
7. the process by which heat or electricity is directly transmitted through the material
9. move continuously and rapidly to and fro.
10. the degree or intensity of heat present in a substance or object
14. a material or device that conducts or transmits heat or electricity
17. produce and discharge
19. take in or soak up
21. dull and flat