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In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.
Examples of Kinetic Energy
A semi-truck travelling down the road has more kinetic energy than a car travelling at the same speed because the truck's mass is much more than the car's.
A river flowing at a certain speed comprises kinetic energy as water has certain velocity and mass.
In physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.
Examples.
Mechanical Potential Energy
A raised weight.
Water that is behind a dam.
A car that is parked at the top of a hill.
A yoyo before it is released.
River water at the top of a waterfall.
A book on a table before it falls.
A child at the top of a slide.
Ripe fruit before it falls.
In physics, sound energy is a form of energy that can be heard by living beings. Only those waves that have a frequency of 16Hz to 20kHz are audible to humans. However, this range is an average and will slightly change from individual to individual.
Examples of Sound Energy
An air conditioning fan.
An airplane taking off.
A ballerina dancing in toe shoes.
A balloon popping.
The bell dinging on a microwave.
A boom box blaring.
A broom swishing.
A buzzing bee.
Electrical energy is energy derived from electric potential energy or kinetic energy. When used loosely, electrical energy refers to energy that has been converted from electric potential energy
Specific examples of electrical energy include:
Alternating current (AC)
Direct current (DC)
Lightning.
Batteries.
Capacitors.
Light energy is a form of electromagnetic radiation. Light consists of photons, which are produced when an object's atoms heat up. Light travels in waves and is the only form of energy visible to the human eye.
Light energy comes in many different forms, including:
Visible light.
Infrared waves.
X-rays.
Ultraviolet light.
Gamma rays.
Radio waves.
Microwaves.
Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. Heat energy can be transferred from one object to another. The transfer or flow due to the difference in temperature between the two objects is called heat
Everyday Examples of Heat Energy
The biggest example of heat energy in our solar system is the sun itself. ...
When the burner of a stovetop is very hot, it is a source of heat energy. ...
Automobile fuels such as gasoline are sources of heat energy, as is the hot engine of a racecar or a school bus
Objects have mechanical energy if they are in motion and/or if they are at some position relative to a zero potential energy position (for example, a brick held at a vertical position above the ground or zero height position). A moving car possesses mechanical energy due to its motion (kinetic energy).
Examples of matter containing chemical energy include:
Coal: Combustion reaction converts chemical energy into light and heat.
Wood: Combustion reaction converts chemical energy into light and heat.
Petroleum: Can be burned to release light and heat or changed into another form of chemical energy, such as gasoline.
Chemical energy is the potential of a chemical substance to undergo a chemical reaction to transform into other substances. Some examples of storage media of chemical energy include batteries, food, and gasoline.
Explanation:
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