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Energy Transformations  Energy comes in many forms that are interchangeable and is always conserved in a closed system.

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Presentation on theme: "Energy Transformations  Energy comes in many forms that are interchangeable and is always conserved in a closed system."— Presentation transcript:

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2 Energy Transformations

3  Energy comes in many forms that are interchangeable and is always conserved in a closed system.

4 Nuclear Energy  Energy stored inside the atom  Atom: all matter is made up of atoms, which we will study more later in the chemistry unit  Energy stored inside the atom  Atom: all matter is made up of atoms, which we will study more later in the chemistry unit

5 Kinetic Energy  The energy of motion  Also known as mechanical energy  The energy of motion  Also known as mechanical energy

6 Chemical Energy  The energy stored in molecules

7 Sound Energy  The energy carried by vibrations

8 Thermal Energy  The energy an object has as a result of the motion of its molecules  Also known as heat energy  The energy an object has as a result of the motion of its molecules  Also known as heat energy

9 Radiant Energy  Energy that travels as electromagnetic waves  Most common is light energy

10 Electrical Energy  The energy associated with moving electric charges

11 Energy Transformation Equation  Changes in energy can be summarized using an energy-transformation equation.

12 Energy Transformation Equation  For example,a microwave oven transforms electrical energy into radiant energy (microwaves), which in turn is transformed into thermal energy which cooks the food. Therefore  electrical energy  light energy  heat energy  For example,a microwave oven transforms electrical energy into radiant energy (microwaves), which in turn is transformed into thermal energy which cooks the food. Therefore  electrical energy  light energy  heat energy

13 Energy Transformation Technology  The microwave is an example of an energy-transformation technology, which is a device used to transform energy for a specific purpose.

14 Generator System  A generator system converts mechanical energy into electrical energy.  The key parts of a generator are a turbine, shaft, and the generator itself.  Any type of energy that can be used to turn a turbine can be used to generate electrical energy.  The mechanical energy turns the turbine and rotates a magnet within a wire coil, causing the charged particles in the wire to move.  A generator system converts mechanical energy into electrical energy.  The key parts of a generator are a turbine, shaft, and the generator itself.  Any type of energy that can be used to turn a turbine can be used to generate electrical energy.  The mechanical energy turns the turbine and rotates a magnet within a wire coil, causing the charged particles in the wire to move.

15 Generating Electrical Energy in Ontario 1.Hydroelectric  moving water 2.Thermoelectric  heat from the burning of fossil fuels 3.Nuclear  heat from nuclear reactions 1.Hydroelectric  moving water 2.Thermoelectric  heat from the burning of fossil fuels 3.Nuclear  heat from nuclear reactions


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