What is Force? Force can be defined as a push or a pull that changes or tends to change the state of rest or uniform motion of an object or changes the direction or shape of an object. It causes objects to accelerate or add to their overall pressure. In simple terms, it is a push or a pull on an object that takes place when two objects interact. It is the basic cause of motion from rest. Unit of Measurement It is measured in ‘Newton’ (N). Newton measures the force needed to move, accelerate or speed up objects. The basic formula for it is, F = m.a, where, ‘m’ stands for the mass in kilograms and ‘a’ stands for acceleration in m/sec 2 . It may also be measured in Pounds. Force is a Vector Quantity Types of Forces There are different types of forces in the Universe. Based on the nature of the interaction between two bodies, they can be classified into two main categories viz. Contact Forces. Non-Contact Forces (Field Forces or Action at a D...
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