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प्रश्न
Is energy a vector quantity?
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उत्तर
No, energy is a scalar quantity as it has only magnitude.
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संबंधित प्रश्न
A body falls freely under gravity from rest. Name the kind of energy it will possess while falling.
State whether the object possess kinetic energy, potential energy, or both :
A man climbing a hill _____________.
What kind of energy is possessed by the following?
A running car ____________
Fill in the blank with suitable word :
The ability of a body to do work is called __________. The ability of a body to do work because of its motion is called __________.
A boy weighing 40 kg makes a high jump of 1.5 m.
What is his potential energy at the highest point? (g = 10 m/s2)
Name the device or machine which convert :
Chemical energy into kinetic energy (or mechanical energy).
Name the energy transfers which occur when someone speaks into a microphone.
When an object falls freely towards the earth, then its total energy :
Which of the following energy change involves frictional force?
An object is falling freely from a height x. After it has fallen a height `pi/2` , it will possess :
