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- 1. Multiple Choice
Select the correct order of waves on the EMS from low to high energy
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
- 2. Multiple Choice
Which has the LONGEST wavelength and, therefore, the LOWEST frequency/energy
Gamma Rays
Ultraviolet
Visible Light
Infrared rays
- 3. Multiple Choice
How are Electromagnetic waves different from Mechanical waves?
EM waves have very short wavelengths
EM waves transmit energy instead of matter
EM waves can travel through the vacuum of space (without particles)
EM waves can change direction by reflection
- 4. Multiple Choice
Which of the following electromagnetic waves has the lowest frequency?
gamma ray
infrared wave
visible light wave
microwave
- 5. Multiple Choice
Which is true about the speed of radio waves compared to light waves? They are...
less energy & frequency, but still the SAME speed as the speed of light (300,000,000 m/s)
less energy & frequency, so LESS than the speed of light (300,000,000 m/s)
smaller wavelength, so LESS than the speed of light (300,000,000 m/s)
more energy & frequency, so MORE than the speed of light (300,000,000 m/s)
- 6. Multiple Choice
Wavelength and Frequency are related in that...
they are always the same
when one increases, the other decreases (inversely proportional)
there is no correlation
they both vary in an irregular pattern
- 7. Multiple Choice
High frequency in EM waves equals
high energy and short wavelength
high energy and long wavelength
low energy and short wavelength
low energy and long wavelength
- 8. Multiple Choice
The _______________ determines the color of visible light.
wavelength (and frequency)
speed
amplitude
particles of the medium
- 9. Multiple Choice
Put the visible light colors in order from SHORTEST wavelength (highest frequency) to longest wavelength (lowest frequency)
Violet, Indigo, Blue, Green, Orange, Yellow, Red
Red, Yellow, Green, Orange, Violet, Blue, Indigo
Red, Orange, Yellow, Green, Blue, Indigo, Violet
- 10. Multiple Choice
All electromagnetic waves are...
transverse waves and have the same frequency
transverse waves and have the same speed
mechanical waves and have the same wavelength
longitudinal waves and have the same energy
- 11. Multiple Choice
What is different about the speed of sound waves vs. the speed of light?
sound waves are the FASTEST in solids (high density), while light waves are the FASTEST in gas (or no molecules)
sound waves are the FASTEST in gas (low density), while light waves are the FASTEST in solids
Both have the same speed all the time
Both are the FASTEST in the air or gas (low density)
- 12. Multiple Choice
How far away is the wall if the echo takes 2 s to make a ROUND trip to come back to your ear and the speed of sound is 340 m/s? (HINT...only HALF of the time is needed to make the trip TO THE WALL ONLY!!!)....d=v*t
170 m
340 m
680 m
342 m
- 13. Multiple ChoiceIf a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...Moving towards the EarthMoving away from the EarthThis is a trick question that cannot be answeredIt isn't a star, it is a very large blueberry.
- 14. Multiple ChoiceThe vast majority of galaxies in our universe are moving away from us. We know this because we observe __________ in the galaxies absorption spectra.RedshiftBlueshiftTurbulanceSuperposition
- 15. Multiple ChoiceWhat does the Red-shift tell us about the universethe universe is expandingthe universe is contractingthe big bang is falsenothing
- 16. Multiple Choice
In the diagram, if the angle of B with the wall=50 degrees, what is the total angle between the incident ray C and reflected ray B?
40
50
80
100
- 17. Multiple Choice
How is a light wave created differently than a sound wave?
An electron vibrating making photons vs. a guitar string vibrating to move the air molecules around it
An electron vibrates to move air molecules vs. a guitar string vibrating to make photons
they are both vibrating electrons but light makes photons and sound moves air molecules
they both make photons, but light is from vibrating electrons and sound is from vibrating strings or other objects
- Answer choicesTagsAnswer choicesTags