Page 2 - TYPES OF FORCES (FRICTIONAL , GRAVITATIONAL, MAGNETIC AND BOUYANT FORCES)

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TYPES OF FORCES
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4. FRICTIONAL FORCE
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• •Frictional force is a force of resistance that tries to
slow down and stop the movement of objects across a
s l o w d o w n a n d s t o p th e m o v em en t o f o b j e c ts a c ro s s a
s urf a c e .
surface.
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• •Friction acts on moving objects in a direction opposite
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to the direction in which the objects are moving.
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• •On smooth surfaces less friction is exerted and on
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rough surfaces more friction is exerted. Due to it we
ro ug h s urf a c es m o re f ric t io n is exerted . D ue t o it w e
e
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are able to walk. Thus, a top spinning on a smooth

a
a
w o o d en ta b l e w o ul d f a c e l es s f ric tio n t h a n o n a ro ug h
wooden table would face less friction than on a rough
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e
surface.