Interactive PPT

1. welcome

3. •FORCE

4. Force is that which changes or tends to
change the state of rest or uniform motion
of a body in a straight line
UNIT = Kg m / s2

6. INTERNAL FORCE
Eg: Sit on a chair and try to lift it
without touch the legs on the floor

7. EXTERNAL FORCE
• Eg: A car is pushed to move from
outside

8. Balanced force
• Eg: Two people standing on the
opposite sides and push a table with
equal force.

9. Unbalanced force
Eg: A man hit a ball

10. Contact force
• Eg: push a table with hands

11. Non contact force
• Eg: apple falling down from an apple
tree due to gravitational force of earth.

12. Characteristics of forces
• Force is required to move an object
from a state of rest.
• Force is required to change the direction
of an object moving in a particular
direction.

13. • Force is required to increase or decrease
the speed of moving objects.
• To stop the object moving in a particular
direction force is to be applied in
opposite direction.

14. The End
THANK YOU