This document discusses different types of forces including contact forces, non-contact forces, gravitational forces, magnetic forces, external forces, balanced forces, frictional forces, and unbalanced forces. It explains that forces can start or stop motion, change direction, speed up or slow down movement, and change an object's shape. The document is presented by Shalu V.S. as part of a physical science class at B.N.V. College of Teacher Education in Thiruvallam.

1. WELCOME

2. SHALU.V.S
PHYSICAL SCIENCE
B.N.V COLLEGE OF
TEACHR EDUCATION
THIRUVALLAM
Presented by

3. FORCE

4. What Forces Do ?
Begin to move
 Stop moving
 Change direction

5. Speed up
 Slow down
Change shape

6. Types of Forces
Magnetic Frictional
Balanced
Contact
External
Gravitational

7. Contact Force
The force in which an object comes in contact with
another object.

8. Non-contact force
The force applied to an object by another body that is
not in direct contact with it.
FORCE
GRAVITATIONAL FORCE

9. Magnetic Force
The fundamental force that
is associated with magnetic
fields

10. External Force
The force acting
externally on the body
results in the motion.

11. Balanced Force
The pulling force is equal on both sides,
resulting on the rope remaining stationary

12. Balanced Force
While the balloon pulls
upward, the child’s hand
pulls downward

13. Unbalanced force
Those unequal forces will cause movement
whether it is horizontal or vertical

14. Frictional Force
The force that occurs when two objects are in
contact with each other.