Energy: An overview
Presentation
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Science
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12th Grade
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Practice Problem
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Easy
Sara Alattar
Used 5+ times
FREE Resource
16 Slides • 7 Questions
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Energy Forms
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Multiple Choice
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2) Electrical energy
Is energy associated with electric charges.
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3) Thermal Energy
Is the kinetic energy of all the atoms and molecules in an object.
The more energy the atoms and molecules have, the faster they move.
If the particles in an object start to move faster, the object will become warmer.
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Multiple Choice
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Multiple Choice
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Multiple Choice
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4) Chemical Energy
Is energy stored in the bonds of chemical compounds, like atoms and molecules. This energy is released when a chemical reaction takes place.
Examples:
➢Food: When you move your legs and arms during walking, your body converts chemical energy stored in food into mechanical energy.
➢ Fossil fuels contain energy stored in the molecules of chemical compounds.
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Multiple Choice
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Multiple Choice
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5) Nuclear Energy
Involves forces within atoms. The forces that hold nuclear particles together in the nucleus can store a huge amount of potential energy
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Multiple Choice
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In the fan’s motor
Electrical energy has been converted to mechanical energy.
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In combustion,
chemical energy stored in the fuel is converted to thermal and electromagnetic energy. You feel the thermal energy as heat and see the electromagnetic energy as light.
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Energy Use
Four uses of energy:
1. Industrial
2. transportation
3. residential
4. commercial
Developed nations tend to use more energy than developing nations
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Energy Forms
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