Question

Which of the following is not a form of energy ?
A) Heat
B) Light
C) Sound
D) Charge

Answer 1

Energy: energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat , the object. Energy is a conserved quantity ; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.SI unit of energy is joules, which is the energy transferred to an object by the work of moving it a distance of 1metre against a force of 1newton.
Various other units of energy units of energy:erg, foot pound, BTU(British Thermal Unit),calorie, KWh .

Complete step by step solution:
As we have defined the basic definition of energy in the hint .Now let’s check out each option given in the question whether the quantity is transferable from one form to another or not.

Heat: yes heat is transferable from one form to another. example : cooking of food .

Light : it is also a form of energy ,which can be converted in another form. example :lighting bulb converts electrical energy into light energy and light energy is again converted to heat

Sound : yes sound energy is also an energy .Example formation of electrical energy from tapping sound of feet on a railway station and any other chaotic places.

Charge: cannot be converted to another form. charge is just a physical property of matter which causes it to experience a force when placed in an electromagnetic field.

Therefore our answer becomes option 4.

Note:
To understand the concept of energy further ,the best example we can have is our sun.
Sun converts nuclear energy into light and heat energy .Sun is a natural source of energy present in our solar system . Heat and light from the sun is converted to obtain electrical energy by using solar panels.