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Force and Newton’s Laws of Motion : CBSE Class 9 IX Science
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Hello students, in this video we are going to study topics such as, what is a force, types of forces and Newton’s laws of motions.
Let’s start with What is Force?
A push or pull on a body is called force.
Forces are used in our everyday actions like pushing, lifting, pulling, stretching, twisting and pressing. A force cannot be seen. A force can be judged only by the effects which it can produce in several bodies or objects around us.
Force has both magnitude and direction, making it a vector quantity. It is measured in the SI unit of Newton and represented by the symbol F.
Effects of Force
– Force can make a stationary body in motion.
– Force can stop a moving body.
– Force can change the direction of a moving object.
– Force can change the shape and size of an object.
Balanced and Unbalanced Forces
1) Balanced Forces
If the resultant of applied forces is equal to zero, it is called balanced forces.
2) Unbalanced Forces
It the resultant of applied forces are greater than zero the forces are called unbalanced forces.
All the above-mentioned topics are described in an interactive and efficient manner so that the students could easily understand them.
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#Motion #newtonslawsofmotion #class9science
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