Thermal energy is the energy of moving particles that causes heat. Heat is the transfer of thermal energy between objects when they are at different temperatures. The document discusses conductors and insulators - materials that easily allow heat to pass through them are conductors like metals and materials that do not are insulators like rubber, wood, and paper. Common examples of conductors and insulators are provided.

1. Thermal energy
Energy of the moving particles of
matter.

2. Heat
Flow of thermal energy from one
object to another.

3. Example:
1)

4. 2)

5. 3)

6. Sources of heat
sun
fire

7. stove
Light bulb
Rubbing two
objects together

8. Thermal
Conductors and Insulators
conductors
Materials that let heat pass
through them easily

9. Metals :
Cooking pots are made of steel and aluminium,
so the food inside heats up quickly and be
cooked.

10. Thermal
Conductors and Insulators
insulator
Materials that do not let heat move
through them easily

12. Conductor or Insulator
kettle
conductor

13. Conductor or Insulator
Rubber toy
Insulator

14. Conductor or Insulator
Aluminium foil
conductor

15. Conductor or Insulator
Rubber tyre
Insulator

16. Conductor or Insulator
Silver coin
conductor

17. Conductor or Insulator
String
Insulator

18. Conductor or Insulator
Teddy bear
Insulator

19. Conductor or Insulator
Nickel knife
conductor

20. Conductor or Insulator
Wooden spoon
Insulator

21. Conductor or Insulator
Gold ring
conductor

22. Conductor or Insulator
key
conductor

23. Conductor or Insulator
Paper
Insulator

24. Conductor or Insulator
Tissue
Insulator