Matter And Energy, Frequencey And Wavelength

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Introduction to EMS Vocabulary

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Matter And Energy, Frequencey And Wavelength

  1. 1. Matter and Energy Frequency and Wavelength
  2. 2. Matter <ul><li>Anything that has weight / mass and takes up space. Example - </li></ul><ul><li>Matter is found in 3 states: solid, liquid & gas. Give example of each. </li></ul><ul><li>Matter can be changed from state to state by adding or removing energy. </li></ul><ul><li>Example of adding energy – </li></ul><ul><li>Example of removing energy - </li></ul>
  3. 3. Energy <ul><li>The ability of matter to do work. </li></ul><ul><li>There are 6 main groups of energy: </li></ul><ul><li>Heat Energy – energy produced by moving particles in matter. Faster the particles -> more heat. </li></ul><ul><li>Mechanical Energy – energy produced from moving machines (or matter) </li></ul><ul><li>Electrical Energy – energy produced when electrons move through a substance (ex. wire) </li></ul>
  4. 4. Energy <ul><li>4. Radiant Energy – energy that travels in waves and spreads out in all directions. Electromagnetic Spectrum </li></ul><ul><li>5. Chemical energy – energy produced when substances (chemicals) react with other substances. </li></ul><ul><li>6. Nuclear Energy – energy produces when the nucleus of an atom splits in two (extremely powerful and dangerous) </li></ul>
  5. 5. Energy <ul><li>Energy is always changing from one form to another. </li></ul><ul><li>Example: electricity (electrical energy) from a wire travels into a lamp and changes into light (radiant energy) which also changes into heat (radiant energy). </li></ul>
  6. 6. Frequency and Wavelength There is a relationship between frequency, wavelength and energy. Frequency – number of cycles/second . Long wavelength  Short wavelength Low frequency  High frequency Low energy  High Energy

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