FORCE AND LAWS OF MOTION | SPEED NOTES | SCIENCE | PHYSICS | CBSE | CLASS 9

Physics - Force And Newton's Laws Of Motion - Speed Notes

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Force : Push or pull is called Force. Example: We push or pull to open a door. Effects of Force

• Force can change the shape and size of an object.

• Force can move a stationary object.

• Force can change the speed of a body.

• Force can stop a moving body.

• Force can change the direction of a moving object.

Net or Resultant Force: Resultant Force or Net Force acts on a body if two or more forces act on it at the same time. Resultant Force or Net Force on a body is defined as the net effective force due to the multiple forces acting on it simultaneously. Based on Net force, Forces are classified into two types as: (A) Balanced forces (B) Unbalanced forces View Full Notes