Sources of Energy
The lesson covers different sources of energy, including renewable and non-renewable types. It explains how energy is used in society and discusses the environmental impacts of various energy sources. Specific examples include petroleum, natural gas, solar energy, and wind energy.
- 00:02 “Good day, class. My name is Eme Nnamdi John. I'll be taking you on physics, through the topic, energy and society. Now, our first objective today, at the end of the study, Lena should be able to know one, the source of e...”
- 15:38 “We have what the acid drain, we have the global warming. We have the greenhouse effects. We also have the global warming, like I said. We have the oil spillage. Now, we're taking them one after the other. Let's first tak...”
- 08:36 “on what are surrounding the Earth. Okay, we have the bio-man energy. Like I said before, as I said, these are the energy that is getting from either from poultry, from animal escrets from inorganic substances. These are...”
Energy Sources and Forms
This lesson explains the meaning of energy and identifies its various sources, including solar energy. It describes different forms of energy and how energy is transformed from one form to another. The lesson also covers the implications of using renewable and non-renewable energy.
- 01:37 “the capacity of a system to do work. When you have an object on a table, if it's a ball, when you use your arms to push the ball, you have exerted an amount of energy, say force to push the ball. Energy exists in everybo...”
- 00:00 “Good day, everyone. My name is Mr. Eiffel and I'm your basic science instructor. Our lesson for today says energy, objectives, explain the meaning of energy, state and describe the sources of energy, name the forms of en...”
- 13:51 “mechanical energy to an electric energy. This electric city is then sent to electric car grid and to our homes where it is converted into light energy. Light and television, they begin to work. The sound energy you can h...”