State the energy changes in the following while in use:
Burning of a candle.

State the energy changes in the following while in use: A steam engine.

State the energy changes in the following cases while in use : A ceiling fan

State the energy changes in the following cases while in use : An electric iron

State the energy changes in the following cases while in use: (a) loudspeaker (b) a steam engine (c ) microphone (d) washing machine (e) a glowing electric bulb (f) burning coal (g) a solar cell (h) bio-gas burner (i) an electric cell in a circuit (j) a petrol engine of a running car (k) an electric iron (l) a ceiling fan (m) an electromagnet

State the energy changes that occur in the Burning coal while operating a steam engine.

State the energy changes that occur in the unwinding of a watch spring.

State one relevant observation for the following reaction : Burning of ammonia in air.

Energy can exist in several forms and may change from one form to another. For each of the following state the energy changes that occur in : (a) the unwinding of a watch spring. (b) a loaded truck when started and set in motion (c) a car going uphill, (d) photosynthesis in green leaves, (e) charging of a battery, (f) respiration, (g) burning of a match stick. (h) explosion of crackers

State the energy changes that occur in the lighting of a torch bulb.

Write the energy conversions in Lighted candle