Is it a mechanical wave
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Is it a Mechanical Wave?. Pick up a Telescope Quiz on the front table. You have five minutes to complete it . Please submit to your class In-Box. List characteristics of the electromagnetic spectrum. Describe how the electromagnetic spectrum is arranged.

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Is it a Mechanical Wave?

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Is it a mechanical wave

Is it a Mechanical Wave?


Is it a mechanical wave

  • Pick up a Telescope Quiz on the front table.

  • You have five minutes to complete it.

  • Please submit to your class In-Box.


Is it a mechanical wave

  • List characteristics of the electromagnetic spectrum.

  • Describe how the electromagnetic spectrum is arranged.

  • Compare & Contrast mechanical & electromagnetic waves.


Is it a mechanical wave

  • Terms

    • Wavelength

    • Frequency

    • Medium

    • Crest

    • Trough

    • Amplitude

    • Transverse Wave

    • Radiation


Is it a mechanical wave

  • Can you imagine trying to keep food warm with a flashlight? How about trying to tune in a radio station on your TV?

  • How is electromagnetic radiation different?


Is it a mechanical wave

  • How is electromagnetic radiation different?

  • Light & radio waves are both E.M. radiation, but each has properties that make it useful for some specific purpose.


Is it a mechanical wave

  • Characteristics of EM Waves

    • All Electromagnetic (EM) waves travel at the same speed

    • All EM waves travel in wavelengths

    • Each EM wave travels at different frequencies.


Is it a mechanical wave

  • Transverse Wave

    • Crest-Highest point of a transverse wave.

    • Trough-Lowest point of a transverse wave.

Crest

Trough


Is it a mechanical wave

  • Transverse Wave

    • Amplitude-Distance between the midpoint of the wave and the crest.

    • Measure of how much energy the wave is carrying

Crest

Amplitude

Trough


Is it a mechanical wave

  • Wavelength

    • The distance a wave travels in one cycle. The distance between two crests or two troughs.

Wavelength

Wavelength


Is it a mechanical wave

  • Frequency

    • The number of waves that pass a given point in one second.

      • Measured in Hertz=wavelengths/second

Crest

Trough


Is it a mechanical wave

  • Work in pairs & complete the questions to show how the EM Spectrum is arranged.


Is it a mechanical wave

  • Similarities of Mechanical & EM Waves

    • Both are measured the same way

      • Transverse Waves

        • Wavelength

        • Frequency

    • Both transfer energy from one place to another


Is it a mechanical wave

  • Differences between Mechanical & EM waves

    • Mechanical waves need a medium to move through.

    • EM waves can travel through a completely empty space.


Is it a mechanical wave

  • Medium-Matter that is disturbed by energy.

    • Chains of vibrating molecules through the medium.

    • Kinetic energy moving the molecules; however, after passing the molecules come to rest in the same spot.


Is it a mechanical wave

  • List characteristics of the electromagnetic spectrum.

  • Describe how the electromagnetic spectrum is arranged.

  • Compare & Contrast mechanical & electromagnetic waves.


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