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TSW – Differentiate among forms of energy including mechanical, sound, electrical, light and thermal (heat).
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It’s the ability to do work!
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Mechanical is the energy of moving things. Anything in motion has mechanical energy.
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Making things move
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Light energy comes from the energy of electromagnetic waves. Things such as candles, light bulbs and the sun give off light energy.
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Plants which change light energy into food Solar panels to turn sunlight into electricity.
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Sound energy is produced by a vibrating object. Sound energy from a radio or a guitar travels in waves to your eardrum.
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Ultrasounds Sonar Music Communication
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When an electric current flows, there is electrical energy. Electrical energy is a secondary source. Its power comes from other types of energy.
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Heating or cooling our homes, cooking, drying our hair or clothes, heating water, powering our televisions and computers. The list could go on and on. We use electricity everyday!
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Heat energy is also called thermal energy. It comes from the movement of atoms and molecules in matter. A flask of hot water has more heat energy than a flask of cold water because the molecules are moving more quickly.
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Cooking, bathing, and warmth. Heat can also be used to generate electricity.
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1. Mechanical 2. Light 3. Sound 4. Electrical 5. Thermal Do you know what each is and how it is used?
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