Question

Name the energy changes in the following examples
1. Photosynthesis
2. Microphone
3. Table fan
4. Physical exercise
5. Dry cell
6. Tubes and bulbs
7. Loudspeaker
8. Thermocouple
9. Burning candle
10. Firecracker
11. Stereo system
12. Washing machine
13. Room heater
14. Photocell
15. Electromagnet
16. Cooking
17. Generator
18.Windmill
19. TV
20. Electric motor​

Answer 1

photosynthesis have two types of energy that chemical energy and protons

Answer 2

1. Photosynthesis: Light energy into chemical energy

2. Microphone: Acoustical energy into electrical energy

3. Table fan: Electrical energy into kinetic energy

4. Physical exercise: Chemical energy into kinetic energy

5. Dry cell: Chemical energy into electrical energy

6. Tubes and bulbs: Chemical energy to electrical energy and then electrical energy into light and heat energy

7. Loudspeaker: Electrical energy into sound energy

8. Thermocouple: Heat directly into electricity

9. Burning candle: Chemical into heats and light energy

10. Firecracker: Chemical energy into light, thermal and sound energy

11. Stereo system: Electrical into sound energy

12. Washing machine: Electrical energy into mechanical energy

13. Room heater: Electrical energy into heat energy

14. Photocell: Optical energy into electrical energy

15. Electromagnet: Electrical energy to magnetic energy

16. Cooking: Thermal energy is used to cook food. Thermal energy is heat. It's converted from either electrical potential energy or chemical potential energy, depending on the cooking appliance. An electric stove converts electric potential energy to thermal energy.

17. Generator: Mechanical energy into electrical energy

18. Windmill: Kinetic energy into mechanical energy

19. TV: Electrical energy to light energy

20. Electric motor: Electrical energy into mechanical energy

Hope this helps you!