What is Force? Video Lecture | SSC CGL Tier 2 - Study Material, Online Tests, Previous Year

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1. What is force?
Ans. Force is a physical quantity that can cause an object to accelerate, change its shape, or deform. It is a push or pull exerted on an object due to the interaction with another object or its surroundings.
2. What are the different types of forces?
Ans. There are several types of forces, including gravitational force, electromagnetic force, nuclear force, normal force, frictional force, tension force, and applied force. Each type of force has its own characteristics and effects on objects.
3. How is force measured?
Ans. Force is measured using a unit called newton (N). One newton is defined as the force required to accelerate a mass of one kilogram by one meter per second squared. Various instruments such as spring balances and force gauges are used to measure force.
4. What is the relationship between force and motion?
Ans. According to Newton's second law of motion, force is directly proportional to the rate of change of momentum of an object. This means that a larger force will result in a greater acceleration or deceleration of an object. Force is responsible for causing motion or stopping an object from moving.
5. How can forces be balanced or unbalanced?
Ans. Forces can be balanced when the net force acting on an object is zero. In this case, the object remains at rest or continues to move at a constant speed in a straight line. On the other hand, forces are unbalanced when the net force is not zero, resulting in an acceleration or change in motion of the object.
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