Grade 4 EVS Ch- Force, Work and Energy Notebook work

CH-9

Force, Work and Energy

New Words-

1. Force

2. Breathing

3. Engine

4. Calories

5. Heat energy

6. Chemical energy

7. Electrical energy

8. Solar energy

Answer the following Questions-

a. How do plants prepare their food?

Ans- Plants prepare their own food with the help of sunlight.

b. What do you mean by energy?

Ans- Energy is the ability to do the work.

c. State two factors on which amount of work done depends.

Ans- The amount of work done depends on two factors -

 i) The amount of force applied on the object.

ii) The distance through which the object moves.