Question

Give one example of each of the following transformations of energy.

(iii) Electrical energy to light energy.
(iv) Chemical energy to heat energy.
(v) Chemical energy to light energy.​

Answer 1

Answer:

iii)In the case of an electric bulb, the electrical energy is converted to light and heat. The amount of electrical energy put into a bulb = the amount of light energy (desirable form) plus the heat energy that comes out of the bulb (undesirable form).

iv)Coal is burned at a power plant.

v)Combustion reaction converts chemical energy into light and heat. ... Wood: Combustion reaction converts chemical energy into light and heat. Petroleum: Can be burned to release light and heat or changed into another form of chemical energy, such as gasoline.

Answer 2

Explanation:

iii- forexample we put electric energy into a bulb and bulb produce light (which is desired form of output from a bulb) but we also get heat from the bulb.... In this case electric bulb the electrical energy is converted into light the light energy.

iv- gasoline is burnt in a car engine as a gas burns small explosion release heat thermal energy which make the piston move so the car go.

v-photosynthesis which change solar energy into chemical energy