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- 1. Multiple ChoiceWhat are electromagnetic waves?sound waveselectric & magnetic fields (energy) that travel through empty space very quicklySomeone's namethings like longitudinal waves
- 2. Multiple ChoiceThe height of the wave from the rest position is known as the _____________.amplitudecresttroughwavelength
- 3. Multiple ChoiceHow much of the electromagnetic spectrum is visible?All of itNone of itMost of itOnly a small part
- 4. Multiple ChoiceThe distance between two crests or two troughs of a wave is called:frequencyamplitudwavelengthhertz
- 5. Multiple Choice
High frequency waves have _________ wavelengths.varyinglongthe sameshort - 6. Multiple ChoiceAs the frequency of an electromagnetic wave increases, the amount of energy in that wave...increases.decreases.stays the same.
- 7. Multiple ChoiceWhich of the following electromagnetic waves has the lowest energy?gamma rayinfrared wavevisible light wavemicrowave
- 8. Multiple ChoiceHow are electromagnetic waves different from other waves?They have very short wavelengthsThey transmit energy instead of matterThey can travel through empty spaceThey can change direction by reflection
- 9. Multiple ChoiceTrue or false: as you move along the spectrum, radio to gamma waves, the wavelengths decrease in size (get smaller)truefalse
- 10. Multiple ChoiceA wave with a large wavelength will have a ______ frequency and _____ energyhigh, lowhigh, highlow, highlow, low
- 11. Multiple ChoiceSelect the correct order of waves on the EMS from the longest wavelength to the shortest wavelengthRadio, Micro, Infra, Visible, Ultra, X-ray, GammaGamma, X-ray, Ultra, Vis, Infra, Micro, RadioVis, Micro, Infra, Ultra, X-ray, Gamma, RadioMicro, Radio, Vis, Infra, Ultra, X-ray, Gamma
- 12. Multiple ChoiceWhich has the LONGEST wavelength and, therefore, the lowest frequency/energyGamma RaysRadio WavesVisible LightInfrared rays
- 13. Multiple ChoiceWhich has the SHORTEST wavelength and, therefore, the highest frequency/most energyRadio wavesUltraviolet RaysGamma RaysX-rays
- 14. Multiple ChoiceWhich section of the spectrum is the ONLY one we can see?X-raysVisible LightGamma RaysUltraviolet Rays
- 15. Multiple ChoiceThe relationship between wavelength and frequency is λ=c/f. Calculate the wavelength of light that has a frequency of 5.2 x 1012 1/s. The speed of of light is 3.0x 108 m/s.5.8 x 10 -5 m5.8 x 10 -7 m5.19 x 10 14 m1.56 x 10 23 m
- 16. Multiple ChoiceSolve this problems using the equation:
C = λν
If an AM radio station broadcasts at
9.95 x 105 Hz, what is the wavelength of this radiation?6.59 x 10-28 m1.01 x 10-6 m3.32 x 10-3 m302 m - 17. Multiple Choice
Calculate the wavelength of light that has a frequency of 5.2 x 1012 1/s.
5.8 x 10 -5 m
5.8 x 10 -7 m
5.19 x 10 14 m
1.56 x 10 23 m
- 18. Multiple ChoiceWhat are the units of frequency?m/ssHzm
- 19. Multiple Choice
IRAS, the Infrared Astronomy Satellite launched by NASA in 1983, had a detector that measured infrared or heat radiation from different regions of space. What is the frequency of infrared light that has a wavelength of
1.10 X 10-6 m?
3.67 x 10-15 Hz
3.67 x 10-3 Hz
2.73 x 102 Hz
2.73 x 1014 Hz
- 20. Multiple Choice
A wave has a frequency of 10 hz and a wavelength of 4 m. What is the velocity of the wave?
24 m/s
40 m/s
2.5 m/s
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