Powerpoint slide on force

1. Submitted by
SREEKALA L
Reg:no:13982022
Physical science
K.U.C.T.E Kulakkada

2. FORCE

3. FORCE
• A force is an influence which tends to set a
stationary
• object in motion or which tends to change the speed
• and direction of a moving body or which tends to
• change the speed of body.

4. Images of force

5. Balanced force
• When a number of force acts on a body and the resultant of these
forces is zero , then the force is said to be balanced.

6. Unbalanced force
• When a number of forces acts on a body , the resultant of force is not
zero , the force is said to be unbalanced.

7. Balanced force

8. Unbalanced force

9. Characteristics of force
• Force is required to move an object from a
state of rest.
• Force is required to increase or decrease the
speed of a moving object.
• Force is required to change the direction of
an object moving in a particular direction.
• To stop an object moving in a particular
direction of force is to be applied in the
opposite direction.

10. NEWTON’S FIRST LAW OF
MOTION
• Any body continues to be in a state of rest or of
uniform motion in a straight line until an unbalanced
external force is applied on it.

11. Inertia
AN OBJECY CANNOT BY ITSELF
CHANGE ITS STATE OR REST OR ITS
UNIFORM MOTION IN A STRAIGHT LINE.
THIS IS INERTIA

12. Inertia

13. Inertia of rest
AN OBJECT IN A STATE OF REST
HAS THE TENDENCY TO CONTINUE
IN THAT STATE
Inertia of motion
AN OBJECT IN A STATE OF MOTION
HAS THE TENDENCY TO CONTINUE
IN THAT STATE

14. Mass and Inertia
• Mass is the measure of inertia of a body. The
inertia of two objects is not the same . If
they have same speed or the same momentum
. Mass or inertia is an intrinsic property of an
object.