Year 8 Physics

Introduction to Energy
10 Topics | 9 Quizzes
1 | What Is Energy?
What Is Energy? – Topic Quiz
2 | Kinetic Energy
Kinetic Energy – Topic Quiz
3 | Potential Energy
Potential Energy – Topic Quiz
4 | Comparing Kinetic Energy and Potential Energy
Comparing Kinetic Energy and Potential Energy – Topic Quiz
5 | Total Energy
Total Energy – Topic Quiz
6 | Transfer of Energy
Transfer of Energy – Topic Quiz
7 | Transformation of Energy
Transformation of Energy – Topic Quiz
8 | Conservation of Energy
Conservation of Energy – Topic Quiz
9 | Heat as a By-Product of Energy Transfer and Transformation
Heat as a By-Product of Energy Transfer and Transformation – Topic Quiz
10 | Summary
Kinetic Energy
7 Topics | 6 Quizzes
1 | Types of Kinetic Energy
Types of Kinetic Energy – Topic Quiz
2 | Mechanical Kinetic Energy
Mechanical Kinetic Energy – Topic Quiz
3 | Thermal Energy
Thermal Energy – Topic Quiz
4 | Radiant Energy
Radiant Energy – Topic Quiz
5 | Sound Energy
Sound Energy – Topic Quiz
6 | Electrical Kinetic Energy
Electrical Kinetic Energy – Topic Quiz
7 | Summary
Potential Energy
8 Topics | 7 Quizzes
1 | Types of Potential Energy
Types of Potential Energy – Topic Quiz
2 | Gravitational Potential Energy
Gravitational Potential Energy – Topic Quiz
3 | Elastic Potential Energy
Elastic Potential Energy – Topic Quiz
4 | Mechanical Potential Energy
Mechanical Potential Energy – Topic Quiz
5 | Electrical Potential Energy
Electrical Potential Energy – Topic Quiz
6 | Chemical Energy
Chemical Energy – Topic Quiz
7 | Nuclear Energy
Nuclear Energy – Topic Quiz
8 | Summary
Energy Transfer
7 Topics | 6 Quizzes
1 | The Transfer of Energy
The Transfer of Energy – Topic Quiz
2 | Transfer of Mechanical Kinetic Energy
Transfer of Mechanical Kinetic Energy – Topic Quiz
3 | Transfer of Thermal Energy
Transfer of Thermal Energy – Topic Quiz
4 | Transfer of Radiant Energy
Transfer of Radiant Energy – Topic Quiz
5 | Transfer of Sound Energy
Transfer of Sound Energy – Topic Quiz
6 | Transfer of Electrical Kinetic Energy
Transfer of Electrical Kinetic Energy – Topic Quiz
7 | Summary
Energy Transformation
6 Topics | 5 Quizzes
1 | The Transformation of Energy
The Transformation of Energy – Topic Quiz
2 | Transformation of Mechanical Energy
Transformation of Mechanical Energy – Topic Quiz
3 | Transformation of Electrical Energy
Transformation of Electrical Energy – Topic Quiz
4 | Transformation of Chemical Energy
Transformation of Chemical Energy – Topic Quiz
5 | Transformation of Nuclear Energy
Transformation of Nuclear Energy – Topic Quiz
6 | Summary
Conservation of Energy
5 Topics | 4 Quizzes
1 | The Law of Conservation of Energy
The Law of Conservation of Energy – Topic Quiz
2 | Energy Transfer and Transformation and the Conservation of Energy
Energy Transfer and Transformation and the Conservation of Energy – Topic Quiz
3 | Calculating the Efficiency of Energy Transfers and Transformations
Calculating the Efficiency of Energy Transfers and Transformations – Topic Quiz
4 | Friction and Heat Energy
Friction and Heat Energy – Topic Quiz
5 | Summary
Energy-Efficient Design
5 Topics | 4 Quizzes
1 | Energy Efficiency
Energy Efficiency – Topic Quiz
2 | Increasing Mechanical Efficiency By Reducing Friction
Increasing Mechanical Efficiency By Reducing Friction – Topic Quiz
3 | Increasing Thermal Efficiency By Reducing Heat Transfer
Increasing Thermal Efficiency By Reducing Heat Transfer – Topic Quiz
4 | Other Examples of Increasing Energy Efficiency
Other Examples of Increasing Energy Efficiency – Topic Quiz
5 | Summary
Energy Consumption and Clean Energy
6 Topics | 5 Quizzes
1 | Reducing Energy Consumption and Using Cleaner Sources of Energy
Reducing Energy Consumption and Using Cleaner Sources of Energy – Topic Quiz
2 | Ways of Reducing Energy Usage Around the Home
Ways of Reducing Energy Usage Around the Home – Topic Quiz
3 | Other Ways of Reducing Energy Use
Other Ways of Reducing Energy Use – Topic Quiz
4 | Fossil Fuels as a Source of Energy
Fossil Fuels as a Source of Energy – Topic Quiz
5 | Alternative Sources of Energy
Alternative Sources of Energy – Topic Quiz
6 | Summary
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5 | Total Energy

Year 8 Physics Introduction to Energy 5 | Total Energy

Total Energy

  • All objects possess energy. In fact, they possess several different types of kinetic and potential energy.
  • For example:
  • All objects possess thermal energy, even very cold ones, because all matter is composed of moving particles.
  • All objects emit some form of radiant energy.
  • All objects possess nuclear energy, since all matter is made up of atoms.
  • The sum of all kinetic and potential energy that an objects contains is known as total energy.

 

 total energy ice cube  total energy infrared  total energy sun and clouds

All objects possess several forms of energy.

(Images: stone36, Adobe Stock; watman, Adobe Stock; vvvita, Adobe Stock)

 

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