CBSE Guess > Papers > Important Questions > Class X > 2008 > Science > Science By :- Nagesh Kumar

Science - Source of Energy

1. Can you place alcohol under the category of renewable source of energy?
2. What is non-renewable source of energy?
3. Which type of energy we use to perform our day to day work?
4. What is geothermal energy? When is it available?
5. Give two merits of solar energy.
6. What are the limitations of wind energy?
7. How are the blades of a windmill designed for harnessing wind energy?
8. What are the advantages of nuclear energy?
9. Distinguish between renewable and non-renewable sources of energy. Give examples too.
10. What is solar cooker? Explain its working with the help of a neat & labeled diagram.
11. Which component of sunlight is responsible for carrying heat?
12. Which material is used for making solar cell?
13. Name a renewable source of energy that we can harness for the whole year non-stop?
14. Why the use of dry wood is not considered as good domestic fuel?
15. What are the forms of ocean energy that can be harnessed? Give some places in our country where it can be harnessed?
16. State three advantages of solar cooker?
17. What do you mean by OTEC? What are the conditions necessary for the working of an OTEC?
18. What do you mean by Biomass? What is Biogas? Draw a diagram of biogas plant and explain its working.
19. Qhat are the various forms in which energy from water can be used?