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FORCE - Coggle Diagram
FORCE
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Effects of force
**1. Can move a body at rest
- Stop a moving body
- Make moving body move faster
- Slow down a moving body
- Change direction of motion of moving body
- Change shape or size of a body**
Kinds of Forces
Contact
**1. Muscular - Push or Pull
- Frictional force - by surface to a body in contact - in opposite direction
- Force of Tension - Load suspended on a string
- Force of reaction - Book kept on a table**
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Properties of Force
**1. Does not change the mass of the body
- Cannot see Force
- It is expressed in both magnitude and direction
- 2 forces acting in same direction add to the force
- 2 forces action in opposite direction subtracts from force
- If 2 forces are equal and opposite result is zero
- S.I Unit is newton (symbol N)
- Gravitational units are kgf and gf
- 1000 gf = 1 kgf and 1 kgf = 10 N (nearly)**