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- Multiple ChoicePlease save your changes before editing any questions.What are electromagnetic waves?sound waveselectric & magnetic fields (energy) that travel through empty space very quicklySomeone's namethings like longitudinal waves
- Multiple ChoicePlease save your changes before editing any questions.The height of the wave from the rest position is known as the _____________.amplitudecresttroughwavelength
- Multiple ChoicePlease save your changes before editing any questions.How much of the electromagnetic spectrum is visible?All of itNone of itMost of itOnly a small part
- Multiple ChoicePlease save your changes before editing any questions.The distance between two crests or two troughs of a wave is called:frequencyamplitudwavelengthhertz
- Multiple ChoicePlease save your changes before editing any questions.
High frequency waves have _________ wavelengths.varyinglongthe sameshort - Multiple ChoicePlease save your changes before editing any questions.As the frequency of an electromagnetic wave increases, the amount of energy in that wave...increases.decreases.stays the same.
- Multiple ChoicePlease save your changes before editing any questions.Which of the following electromagnetic waves has the lowest energy?gamma rayinfrared wavevisible light wavemicrowave
- Multiple ChoicePlease save your changes before editing any questions.How 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
- Multiple ChoicePlease save your changes before editing any questions.True or false: as you move along the spectrum, radio to gamma waves, the wavelengths decrease in size (get smaller)truefalse
- Multiple ChoicePlease save your changes before editing any questions.A wave with a large wavelength will have a ______ frequency and _____ energyhigh, lowhigh, highlow, highlow, low
- Multiple ChoicePlease save your changes before editing any questions.Select 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
- Multiple ChoicePlease save your changes before editing any questions.Which has the LONGEST wavelength and, therefore, the lowest frequency/energyGamma RaysRadio WavesVisible LightInfrared rays
- Multiple ChoicePlease save your changes before editing any questions.Which has the SHORTEST wavelength and, therefore, the highest frequency/most energyRadio wavesUltraviolet RaysGamma RaysX-rays
- Multiple ChoicePlease save your changes before editing any questions.Which section of the spectrum is the ONLY one we can see?X-raysVisible LightGamma RaysUltraviolet Rays
- Multiple ChoicePlease save your changes before editing any questions.The 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
- Multiple ChoicePlease save your changes before editing any questions.Solve 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 - Multiple ChoicePlease save your changes before editing any questions.
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
- Multiple ChoicePlease save your changes before editing any questions.What are the units of frequency?m/ssHzm
- Multiple ChoicePlease save your changes before editing any questions.
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
- Multiple ChoicePlease save your changes before editing any questions.
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