electromagnetic spectrum

electromagnetic spectrum

1. Transverse wave

   • The vibrations ar at right angles to the direction of energy transfer

2. Longitudinal waves

   • they are parallel to the dirction of energy transfer

3. white light is a mixture of waves with different wavelengths which we see as different colors

   • separated colors by visible spectrum.

4. Sound waves can travel through air, liquid and solids but not a vacuum.

5. Electromagnetic waves are different from other waves because they do not need a material. They can travel through a vaccum

6. All electromagnetic waves travel at the same speed in vacuum, 3.0 x 10(8) m/s

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