Page 201 - New Medley 3 Semester 2

EFFECTS OF FORCE

Force can cause di erent e ects on an object. Some
of these e ects are as follows:

Moving an Object

Force can move an object kept at rest. If you apply
force on a still object such as a book, it moves ahead.

Stopping an Object A boy catching a ball

Force can also stop a moving object. When you catch a ball
coming towards you, it stops moving.

Changing the Direction of Motion

Force can change the direction of an object. Can you think
A boy hitting a ball of an example? You do it many times in a day.

Changing the Shape of an Object

Force can change the shape of an object. You can stretch
rubberbands by applying force on them. You change the

shape of clay while making toys. Your mother rolls a Making toy with clay
chapati from the dough by applying force on it.

2 • Understanding

Fill in the blanks.
1. A vibrating rubberband can produce .

2. Noise is not for our health.

3. can change the shape of an object.

AT ONE GO

 The sun is the natural source of heat and light on the Earth.
 Luminous objects produce light while nonluminous objects do not.
 A shadow is formed when an opaque object comes in the path of light.

 Sound is produced when an object starts vibrating.
 Force is a pull or push which brings changes in the position of an object.

199