Welcome to The Online class with Teacher Jeffrey
Our topic for today is about introduction to Energy
Introduction to Energy
Nuclear fusion that occurs in the Sun emits a form of energy that brightens our world during the day. And when it sets, the moon reflects its light to brighten the night. BUT there is another form of energy we call electricity that also provides light.
These will be our goal for today
1. define energy,
2. name the sources of energy and the forms of energy.
3. differentiate the words: source and form
What is energy?
Energy is the ability to do work.
We have defined energy.
The sources can be renewable or non-renewable. When we say renewable, it means it is sustainable. When we say, non-renewable, it means it can be depleted.
Source
Renewable Non-renewable
The sources of energy contain different forms. These forms of energy can be energy in motion or energy at rest.
Energy in motion is called kinetic energy while the energy at rest is called potential energy.
Forms
Kinetic is energy in motion
Potential is energy at rest
Examples of renewable sources of energy are hydroelectric power plants or stations, geothermal, fuel cells, biomass, solar, wind, and tidal.
Examples of non-renewable sources of energy are coal, oil, natural gas, and nuclear.
Sources of energy can be
Renewable Energy
Hydroelectric power plant
Geothermal
Fuel Cells
Biomass
Solar
Wind
Tidal
Non-renewable Energy
Coal
Oil
Natural Gas
Nuclear
This energy source contains forms of energy. The forms of energy can either be kinetic or potential.
Forms of energy
Kinetic Energy
Heat/Thermal
Light/Radiant
Sound
Electrical
Mechanical
Solar
Potential Energy
Elastic
Gravitational
Chemical
We have named the sources of energy and their forms.
A source of energy produces a particular form of energy.
Example:
The sun is fueled by nuclear fusion that emits forms of energy like solar, radiant, and thermal energy. Nuclear fusion is the source of energy. The forms of energy are solar, radiant, and thermal.
We have differentiated the words: source and form.
Before we end this topic, we will now have a quick check. To differentiate the words: source and form. Here is the question.
SOLAR PANELS are devices used to harness clean and sustainable energy to light up the community.
Name the energy SOURCE and the FORM of energy produced by the solar panel.
Write your answer in the comment box below.
This ends our topic for today. Introduction to Energy
This is Teacher Jeffrey
A goal without a plan is just a wish!
CREDITS
Secondary SCIENCE for Brunei Darussalam
US Energy Information Administration
UWSP.edu
Clean and Dance
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