Tag: vector quantity
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FORCE AND PRESSURE
Force is a push or a pull on an object. It changes or tends to change the state of rest or the state of motion of an object by a push or pull. It cannot be seen, but its effect can be seen or felt. It is caused by an interaction. An interaction of one…
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Class 9th – WORK
Work is defined as the force acting upon an object that causes an object to move. It is defined as the product of the magnitude of force and the displacement due to force. W=F x s Here, W= work done on an object F = Force on the object s = Displacement of the object Work done depends upon 2 factors…
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Class 9th – Gravitation – MASS & WEIGHT
According to Galileo, Two bodies of different masses dropped from the same height will touch the floor at the same in the absence of air resistance. For example, if we drop two objects of masses 5kg and 8kg from same height then both the object will reach at the surface of earth at same…