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34 Cards in this Set
- Front
- Back
What is Electromagnetic Spectrum? |
Electromagnetic Spectrum is a complete spectrum (or continuum) of all forms of light. |
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An electromagnetic wave consists of what |
It consist of electric and magnetic fields which vibrates - thus making waves |
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Electromagnetic Spectrum has a |
Vibrations |
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The 9 electromagnetic spectrum consists of |
1. Radio Waves 2. Cell phones Waves 3. Microwaves 4. Radar Waves 5. Infrared Waves 6. Visible Light Waves 7. Ultraviolet Waves 8. X-ray Waves 9. Gamma Waves |
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Properties of electromagnetic waves include ______, ______, _______. |
speed frequency wavelength |
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the formula of speed |
s = f x w |
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All light waves travel of a speed of _______ in a ______ |
3x10^8 m/s Vacuum |
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All parts of the electromagnetic spectrum travel at the same _____. |
Speed |
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________ and _______ have an indirect relationship |
Wavelength and Frequency |
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Wavelength decrease, Frequency increase and |
Frequency decrease, Wavelength increase |
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Electromagnetic wave characteristics |
short wavelengths have high frequency long wavelength have low frequency |
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Electromagnetic waves and energy |
high frequency wave have high energy low frequency wave have low energy |
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low energy waves with longest wavelength and low frequency |
radio waves |
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includes AM FM radar and tv waves |
radio waves |
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Radio Wave used in many devices such as ______, _______, ______. |
Remote control items Cellphones Wireless Devices |
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Only radio waves are longer |
Microwaves |
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wavelength of microwave |
1x10^4 m 1x10^-4 m ( 1m to 0.001m ) |
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wavelength of radio waves |
10 ^ - 1 m and longer |
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Use of microwaves |
Communication Medicine Consumer use (microwave ovens) |
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Infrared Waves - invisible electromagnetic waves that are detect as ______ |
Heart |
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Can be detected with special devices such as _____ |
night goggles |
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______ used in ______ |
Infrared Waves Heat lamps |
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Higher energy than microwave but lower than visible light |
Infrared Waves |
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The portion of the electromagnetic spectrum that human eyes can detect |
Visible Light |
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ROY G BIV |
Red Orange Yellow Green Blue Indigo Violet |
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What color has the lowest frequency |
Red has the lowest frequency and violet the highest |
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Higher energy than light waves |
Ultraviolet Waves |
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Ultraviolet can cause _______ and ______ in humans |
Skin cancer and blindness |
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Used in tanning beds and sterilizing equipment |
Ultraviolet Waves |
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High energy waves |
X-ray Waves |
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Used in medicine, industry and astronomy |
X rays |
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Can cause cancer |
X-ray |
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Highest energy |
Gamma rays |
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Gamma rays blocked from Earth's surface by atmosphere |
Gamma rays |