CBSE FORMATIVE ASSESSMENT chapter Energy class 10

ENERGY

FORMATIVE ASSESSMENT I

Q.PAPER I

MARKS-30 TIME- 70 MINUTES

Instructions:

Questions : 1 to 5 – 1 Mark each

Questions : 6 to 9 – 2 Marks each

Questions : 10 to 13 – 3 Marks each

Question 14 – 5 Marks

1. Which component of sunlight helps in drying of cloths?

2. In what form energy stored in water in high raised dams?

3. Name two places of our country where nuclear power plants are located.

4. What is a solar cell?

5. What type of energy transformation takes place when electric bulb glows?

6. Write two differences between hydroelectricity and thermal electricity.

7. Explain two reasons biogas is called as clean fuel.

8. State two limitations of using hydrogen as a common fuel.

9. How is nuclear energy employed for peaceful purposes?

10. What is the principle of wind mill?

11. Name the three forms in which energy from ocean is made available for use. What are OTEC power plants? How do they operate?

12. Give three reasons why the uses of cow dung in biogas plants are preferred than burning dry cow dung cakes for cooking.

13. Explain why

a) Charcoal is considered better fuel that wood.

b) Use of wood as fuel is not advised although forest can be replenished.

c) Fossil fuels are classified as non – renewable sources of energy.

14. a) What is a principle of solar cooker?

b) Explain its working in brief.

c) Draw a labelled diagram of solar cooker.

FORMATIVE ASSESSMENT I

Q.PAPER II

MARKS-30 TIME- 70 MINUTES

Instructions:

Questions : 1 to 5 – 1 Mark each

Questions : 6 to 9 – 2 Marks each

Questions : 10 to 13 – 3 Marks each

Question 14 – 5 Marks

1. Name the component of sunlight, exposure to which may cause skin cancer.

2. Flowing water possess which type of energy.

3. Name one place in India where wind energy power station is installed.

4. What is a solar panel?

5. What type of energy transformation takes place during winding of spring of a clock?

6. Write two differences between renewable and non – renewable sources of energy.

7. What is the principle of solar cooker? Name two types of solar cooker.

8. Name any two types of harmful nuclear radiations emitted during nuclear fission.

9. What is thermal power plant? Where it is preferably situated?

10. What is the principle of solar cooker? Give two limitations and two advantages of solar cooker.

11. Name the fuel for hydro power plant. Mention two advantages and disadvantages of producing electricity at the hydro power plant.

12. Explain why:

a) It is difficult to burn a piece of wood fresh from a tree.

b) Pouring dry sand over the fire extinguishes it.

c) It is difficult to use hydrogen as source of energy.

13. What are the different types of energies obtained from sea? Explain.

14. a) What is a principle of Biogas?

b) Explain it working in brief.

c) Draw a labeled diagram of biogas.