Day: June 4, 2020
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Learning & Memory
LEARNING AND MEMORY: – Learning and Memory are closely related concepts. Learning is acquiring the new knowledge, skill, values and behavior while Memory is the expression of what we have already acquired. Learning and Memory both depend on each other. For Example: -We are learning a new language by studying it, but we are speaking…
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Class 9th – POTENTIAL ENERGY
The energy possessed by a body due to its position or configuration is called Potential Energy. EXAMPLES OF POTENTIAL ENERGY A stretched rubber band possesses potential energy. A raised object possesses potential energy. Water that is stored in the dam possesses potential energy.
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Class 9th – KINETIC ENERGY
Any object that is having the capability to do work possesses energy. The energy possessed by a moving object is called Kinetic Energy. The energy can be transferred from one form to another, i.e. an object S does the work on object K, if an object S which does the work looses energy and the…
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Class 9th – ENERGY
The capacity of a body to do work is called the energy. SI Unit of energy is same that of work i.e. Joule. Energy is Scalar quantity. 1kJ = 1000J
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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…