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WorksheetsEMS telescopes
Total questions: 25
Worksheet time: 32mins
Name
Class
Date
1.
The electromagnetic spectrum consists of
a)
all of the colors of light you can see with your eyes.
b)
all of the different types of electromagnetic waves.
c)
a band of colors formed when white light passes through a prism.
d)
the distance between the crest of one wave and the crest of the next wave.
2.
Both reflecting and refracting telescopes are designed to
a)
break visible light into colors of the spectrum.
b)
separate visible light from ultraviolet and radio waves.
c)
gather and focus visible light.
d)
work better with short-wavelength radiation.
3.
Why are many large optical telescopes located on mountains?
a)
to be closer to the stars
b)
to be above part of the atmosphere
c)
because it is easier to build telescopes on mountains
d)
to be closer to city lights
4.
Radio waves have ______ wavelengths than waves of visible light.
a)
shorter
b)
longer
c)
the same length
5.
The type of light humans can see is called ___________ light.
a)
electromagnetic
b)
red
c)
white
d)
visible
6.
A device that detects radio waves from objects in space is called a(n)
a)
radio telescope.
b)
reflecting telescope.
c)
refracting telescope.
d)
electromagnetic telescope.
7.
A spectrograph breaks the light from an object into a(n) ____________, or range of different colors, and produces an image of it.
a)
spectrum
b)
spectragraph
c)
visible light
d)
prism
8.
Why do we use the entire electromagnetic spectrum to study space?
a)
Because the visible spectrum is such a small part of light we are missing out by not doing so.
b)
So we can determine the direction galaxies are moving
c)
So we can understand the nature of time.
d)
So we can see the composition of galaxies
9.
Why must Ultra-Violet observing be done in space?
a)
The ozone blocks most of the UV rays in the surface.
b)
It’s hard to know exactly where the ozone hole will be to find UV images
c)
It’s hard to use UV telescopes and radio telescopes together on the surface.
d)
It’s hard to use UV X-Ray telescopes and radio telescopes together on the surface
10.
Radio telescopes biggest advantage is that they:
a)
Can be used during the day
b)
Can be used in any type of weather
c)
Almost all radio waves make it to the surface
d)
All of these
11.
What is interferometry?
a)
Using a radio telescope as an optical one
b)
The process the computer goes through get the radio images
c)
The joining of several telescopes to catch the largest waves
d)
A coating of protection against UV radiation from the sun.
12.
What is the basic difference between each type of electromagnetic wave?
a)
Wavelength
b)
Speed they travel
c)
Medium through which they move
d)
The “disturbance” that causes them.
13.
What color has the longest wavelength?
a)
Red
b)
Orange
c)
Green
d)
Blue
14.
What color has the shortest wavelength?
a)
Blue
b)
Red
c)
Green
d)
Yellow
15.
Which of the following has the highest frequency?
a)
X-Ray
b)
Radio Waves
c)
Gamma Waves
d)
Ultra Violet Radiation
16.
How much of the electromagnetic spectrum is visible?
a)
All of it.
b)
None of it.
c)
Most of it.
d)
Very little of it.
17.
Which is NOT an example of electromagnetic radiation.
a)
A microwave being used to heat up pot roast.
b)
A dolphin communicating with a fellow dolphin using sonar.
c)
A remote using infrared radiation to change the channel.
d)
An x-ray machine being used to take a picture of a broken bone.
18.
Cell phones use_____________waves.
a)
Microwaves
b)
Gamma
c)
XRays
d)
Radio
19.
The blue section of the wave is measuring _________________.
a)
wavelength
b)
crest
c)
trough
d)
amplitude
20.
The acronym (letters) used to remember visible light is____________
a)
KTPERRY
b)
ROYGBIV
c)
DOGPOUND
d)
ROMERO
21.
Put the visible light colors in order from longest wavelength to shortest wavelength
a)
Violet, Indigo, Blue, Green, Orange, Yellow, Red
b)
Red, Yellow, Green, Orange, Violet, Blue, Indigo
c)
Red, Orange, Yellow, Green, Blue, Indigo, Violet
d)
Yellow, Blue, Orange, Violet, Red
22.
If you're moving from gamma rays to microwave, describe how the energy level changes
a)
Increases
b)
Decreases
c)
Energy level doesn't change
d)
We never talked about it
23.
Select the correct order of waves on the Electromagnetic Spectrum
a)
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
b)
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
c)
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
d)
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
24.
Which statement regarding light is true?
a)
it travels at a constant speed
b)
its speed depends on temp
c)
slows down as it moves
d)
travels fastest through water
25.
Which kind of wave has the greatest frequency?
a)
gamma rays
b)
infrared
c)
ultraviolet
d)
microwaves
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