PHYSICS REVISION

5. a substance that flows freely but is of constant volume
6. the particles that carry charge through wires in a circuit are mobile electrons
7. the degree or intensity of heat present in a substance or object
9. dull and flat
12. a material or device that conducts or transmits heat or electricity
13. move from a lower position to a higher one
14. the emission of energy as electromagnetic waves or as moving subatomic particles
16. the action of insulating something.
20. move continuously and rapidly to and fro.

1. the amount of space that a substance or object occupies
2. produce and discharge
3. the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise
4. a stable subatomic particle with a charge of negative electricity
6. the process by which heat or electricity is directly transmitted through the material
8. Evaporation is defined as the process of a liquid changing into a gas
10. the quantity of mass per unit volume of a substance
11. firm and stable in shape
15. an air-like fluid substance which expands freely to fill any space available
17. measure of heat loss
18. take in or soak up
19. of a smooth surface reflecting light