Dear Readers, Welcome to Energy Interview Questions and Answers have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of Energy. These Energy Questions are very important for campus placement test and job interviews. As per my experience good interviewers hardly plan to ask any particular questions during your Job interview and these model questions are asked in the online technical test and interview of many IT & Non IT Industries.
The ability to do work is called energy.
Sun is the main source of energy for earth.
The energy that is stored in an object because of its position is called potential energy.
Any object that is at rest position has potential energy. For example, a book on a table, water in a lake, trees, and mountains have potential energy.
The formula for potential energy is
PE = mgh
m = mass of the object
g = acceleration due to gravity
h = height above the earth surface
The various types of potential energy include:
The energy stored in an object because of its height above the ground is called gravitational potential energy.
The energy stored in a stretched or compressed object is called elastic potential energy.
Nuclear energy is the potential energy of the particles such as neutrons and protons that are present inside the nucleus of an atom.
The energy stored in the chemical bonds of atoms and molecules is called chemical energy.
Electric potential energy is a type of potential energy that a charged particle has because of its own electric charge and its relative position to other charged particles.
Kinetic energy is a type of energy that an object has because of its motion.
The formula for kinetic energy is
K = ½ mv2
m = mass of an object
v = velocity of an object
K = kinetic energy
The various types of kinetic energy include:
Radiant energy is the energy of electromagnetic radiation.
Thermal energy is the internal energy of an object due to the motion and collision of atoms.
The energy produced due to vibration of an object is called sound energy.
An electrical energy is the energy of moving electrons.
The various forms of kinetic energy include:
The sum of kinetic energy and potential energy is called mechanical energy.
The law of conservation of energy states that energy cannot be created or destroyed. However, it can be converted from one form to another form.
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