Sources of energy Worksheets

Sources of energy Worksheet-7

1. What are fossil fuels?

2. Who discovered the first nuclear reaction and when?

3. Which is most abundant isotope of uranium?

4. Name one practical application of nuclear fission.

5. What is the source of energy in nuclear fission and fusion?

6. What is the drawback of energy obtained from fusion ?

Sources of energy Worksheet-8

1. What is gasohol? Where is it used?

2. How is fission caused in U-235?

3. State Einstein's mass-energy relation, Give the meaning of each symbol which occurs in it.

4. Name two gases, other than carbon-dioxide that are given out during burning of fossil fuels and contribute towards acid rain formation.

5. Out of two solar cookers, one was covered by a plane glass slab and the other was left open. Which of the two solar cookers will be more efficient and why?

Sources of energy Worksheet-9

1. What is a solar power plant? Name one such plant in our Country.

2. What is anaerobic degradation?

3. What causes the wind to blow?

4. How can wood be made a renewable source of energy?

5. Why is Nuclear fuel classified as renewable source of energy?

6. Geothermal energy is classified as a renewable source of energy. Why?