Page 80 - Genius Kidz Prudence Learning Sc-8

Force always has direction of its action, as seen (i) Change of direction of a moving object.
in the last section forces acting in the same (ii) Can make the moving object move faster.
direction are added up and those acting in the (iii) Can make the moving object move slower.

opposite direction would be subtracted.
(iv) Can change the size of some object.
Effects of Force :
(v) Can change the shape of some object.
Force can generate the following effects :

Activity 1

Give three examples of each of the following :
(a) Force can make the object move.
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(b) Force can make the object move in a different direction.
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(c) Force can change the size of the object.
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(d) Force can change the shape of the object.

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(e) Force can change the speed of the motion of the object.

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Types of Force :
On the basis of interaction between any two

objets, there are two types of the force :
(a) Contact force : This kind of force comes into
play when an object interacts with another
object directly by touching it.

(i) Muscular force : Force generated by
muscular action is the type of muscular Writing with pen needs force Eating requires force to be
force. For example, writing, eating, to be applied on paper. applied on food for chewing.

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