State the two forms in which energy is mainly utilised at our homes.
Two forms of energy which are utilised at our homes are:
(i) Fuels
(ii) Electricity
What are the characteristics of a good source of energy?
Explain the classification of different sources of energy?
List any four sources of energy which are selected for use for a given activity.
1. Energy to run a cycle
2. Energy to run a car
3. Energy to cook food
4. Energy to work on
Classify the following as renewable and non-renewable sources of energy.
Coal, flowing water, geothermal energy, nuclear energy, biogas, natural gas, petroleum, ocean waves, wood, flowing wind, cooking gas, biomass, hydroelectric power.
'Replenishment of energy source like wood takes a long time but it is considered as renewable source of energy.' Comment.
What constitutes a source of energy?
State the two forms in which energy is mainly utilised at our homes.
Mock Test Series
