Key Terms Energy Worksheet Answers
Free energy conversion, also termed as energy transformation, is the process of changing ane form of energy into another. Energy conversion occurs everywhere and every minute of the twenty-four hour period. There are numerous forms of energy like thermal energy, electric energy, nuclear energy, electromagnetic energy, mechanical energy, chemical energy, sound energy, etc. On the other mitt, the term Energy Transformation is used when energy changes forms from ane class to another. Whether the energy is transferred or transformed, the total amount of free energy doesn't change and this is known as the Law of Conservation of Energy.
The Law of Energy Conversion
The diagram shows how different forms of energy can be converted to another course of energy.
Thermodynamics is the study of how energy gets converted from one grade to another. Details on how the laws of thermodynamics apply to the conversion of energy are given below.
The first law of thermodynamics states that
Energy can neither be created nor destroyed, information technology tin can only be transformed from one form to another.
This is also known as the law of conservation of energy or the law of free energy conversion. There are diverse types and forms of free energy. Some examples of everyday energy conversions are provided below.
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Examples of Energy Conversion
Some examples of sets of free energy conversion in machines are explained below.
Coal-fired Power Plant
The sets of energy transformations inside a coal-fired power plant are given in the points below.
- During the process of combustion, the chemical free energy in the coal gets converted into thermal energy.
- And so through the rut exchanger, the thermal energy of the frazzle gases gets converted into the thermal energy of steam.
- Afterwards that in the turbine, the thermal free energy of steam gets converted into mechanical energy.
- Finally, with the help of a generator, the mechanical energy gets converted into electrical energy.
Conventional Machine
The sets of energy transformations in a conventional car are given in the points below.
- Due to combustion, the chemical energy in the fuel gets converted into kinetic energy of the expanded gas.
- Then the kinetic energy of the expanding gas gets converted into linear piston movement.
- And then the linear piston move gets converted into rotary crankshaft motion.
- The rotary motility of drive wheels gets converted into linear motility of the motorcar.
Energy Transfer vs Energy Transformation vs Energy Conservation
What is Energy Transfer?
The movement of energy from one location to another.
What is Energy Transformation?
The process of irresolute of the energy from one type to another.
What is Energy Conservation?
It means that the full corporeality of energy remains the same.
Exercise Questions
Using the post-obit diagram answer the following questions. Neglect the result of resistance forces.
- What happens to the sum of gravitational potential and kinetic energies when the object moves from point A to indicate D across the surface?
Answer: The full mechanical free energy (i.eastward., the sum of the kinetic and potential energies) remains the same whenever there are no external or nonconservative forces (such every bit friction or air resistance) doing piece of work.
- At what point will the object have a minimum gravitational potential energy?
Answer: The gravitational potential energy depends on the height. The potential energy is minimum when the height is minimum. At signal B, the object will have minimum gravitational potential energy.
- At which indicate in the diagram is the object's kinetic energy higher than the object's kinetic free energy at C?
Answer: Since the full mechanical energy is conserved, kinetic energy volition be greatest when the potential free energy is smallest. Point B is the simply point that is lower than point C. The reasoning would follow that betoken B is the point with the smallest PE, the greatest KE, and the greatest speed. Therefore, the object will have less kinetic free energy at point C than at signal B (just).
Oft Asked Questions – FAQs
Can energy exist stored?
Aye, free energy can be stored. 1 efficient manner to store energy is in the class of chemical energy in a battery. When connected to a circuit, energy stored in the battery is released to produce electricity.
What energy transformation occurs in a waterfall?
Potential free energy is converted into kinetic free energy.
Can energy be destroyed?
No, energy tin never exist created or destroyed. Merely the transfer of free energy from i form to another tin can accept identify.
What is mechanical energy?
Mechanical energy is the free energy possessed by an object due to its movement (kinetic energy) or due to its position (potential energy).
What energy transformation occurs when an electric bong rings?
Electrical energy is transformed into sound free energy.
Stay tuned with BYJU'Due south to learn more interesting Physics topics similar Ohm's Law, Thermodynamics, Laws of Motion, etc.
What is Kinetic Energy and Potential Free energy?
Key Terms Energy Worksheet Answers,
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