Page 119 - Viva ICSE Science 4 : E-book

E. Answer the following questions.

1. What are push and pull? Give two examples of each.

2. What is force? Name four types of force.
3. What changes can force bring in an object? Explain with examples.

4. Write about the following with an example of each.

(a) Muscular force

(b) Gravitational force

(c) Magnetic force
5. What is frictional force? Why is it necessary for us?

6. Describe an activity to prove that the rough surface causes more friction than

the smooth surface.

THINK AND ANSWER

What would happen if the gravitational force of the earth stops functioning?

TALK ABOUT

Discuss about the importance of ramp in hospitals, shopping complexes and other public places.

LINK AND LEARN

When we exercise or play in the ground, we use muscular force. Discuss how the use of muscular
force benefi ts our muscles. Also discuss the importance of healthy food for healthy muscles.

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