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Unit 2 Review

Total questions: 105

Worksheet time: 1hrs 6mins

Name
Class
Date
1.

A refracting telescope uses _______ to focus light.

a)

Lenses

b)

Mirrors

c)

Lasers

d)

Water

2.

Reflecting telescopes use _______ to focus light.

a)

Lenses

b)

Flat mirrors

c)

Curved Mirrors

d)

A lens and lasers

3.

Which of these light types cannot be captured by a telescope?

a)

Radio waves

b)

Microwaves

c)

Ultraviolet

d)

All of them can be captured

4.
A ______ telescope uses a mirror to focus light onto a small area.
a)
reflecting
b)
refracting
c)
radio
d)
spectrum
5.
A ______ telescope uses a mirror to focus light onto a small area.
a)
reflecting
b)
refracting
c)
radio
d)
spectrum
6.
A ______ telescope uses a glass to focus light. 
a)
reflecting
b)
refracting
c)
radio
d)
spectrum
7.
The type of light humans can see is called ___________ light.
a)
electromagnetic
b)
red
c)
white
d)
visible
8.
What type of telescope is this?
a)
Refractor
b)
Reflector
c)
Non-Optical
d)
X- Ray
9.
What type of telescope is this?
a)
Refractor
b)
Reflector
c)
Non-Optical
d)
X- Ray
10.
What does Reflecting Telescope have?
a)
Lens
b)
Mirrors
c)
Bat ears
11.
What does Refracting Telescope have?
a)
Sand
b)
Mirrors
c)
Lens
d)
Batmobile 
12.
a)
reflection telescope
b)
refraction telescope
c)
radio telescope
13.
Which telescope bends light the most making distorted images? 
a)
Reflector
b)
Refractor
c)
Compound
14.

Modern telescopes don't use film to capture images, instead they use:

a)

CCDs

b)

USBs

c)

HDDs

d)

CD-ROMs

15.
What is a photon?
a)
When radiation burst through electric waves
b)
The emission of electrons from a metal caused by light striking the metal
c)
The rate at which a waves energy flows through a given unit of area.
d)
packets of electromagnetic energy
16.
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
17.

Shortest wavelength, highest frequency wave

a)

UV

b)

Radio

c)

Microwave

d)

Gamma

18.

The main advantage of using orbital observatories like the Hubble Space Telescope is that __________.

a)

they are easier to use than land-based telescopes.

b)

they are cheaper to build than land-based telescopes.

c)

they can look anywhere in the universe at any time.

d)

they avoid the distortion and absorption of electromagnetic waves by the atmosphere.

19.

The interpretation of patterns and brightness of waves of light.

a)

Law of matter

b)

Spectroscopy

c)

Law of Light

d)

Astronomy

20.

Which reaches the surface of Earth easily?

a)

X-ray

b)

Gamma ray

c)

Infrared

d)

Radio wave

21.

Which of the following has the longest wavelength?

a)

yellow

b)

orange

c)

violet

d)

red

22.

Which of the following has the largest frequency?

a)

yellow

b)

orange

c)

violet

d)

red

23.

Chandra collects which of the following wavelengths of light?

a)

visible light

b)

X-ray

c)

Radio waves

d)

Gamma rays

24.

Waves transfer matter

a)

True

b)

False

25.

Waves transfer energy

a)

True

b)

False

26.

Light pollution is a concern for astronomers

a)

True

b)

False

27.

X-rays have longer wavelengths than gamma rays

a)

True

b)

False

28.

Which wavelength of light is responsible for your sunburn?

a)

Ultraviolet

b)

Visible

c)

Infrared

d)

X-Ray

29.

A twinkling star is caused by turbulent air flow in the Earth's atmosphere

a)

True

b)

False

30.

Spectral lines are considered the ______ of an astronomical object.

a)

brain

b)

strength

c)

fingerprint

d)

birth

31.

The James Webb Space Telescope collects ______ light.

a)

visible

b)

infrared

c)

ultraviolet

d)

microwave

32.

What are some disadvantages refracting telescopes?

a)

expensive

b)

large lens can be deformed by its own weight.

c)

flaws in glass

d)

chromatic aberration

33.

What are some of the characteristics of a good location for building a telescope?

a)

Calm air

b)

Clear skies (few clouds for most of the year)

c)

Dark skies (far from cities)

d)

Dry

34.

A star moving away from the Earth would appear to be...

a)

red shifted.

b)

blue shifted.

35.

A galaxy moving toward the Earth would appear to be...

a)

red shifted.

b)

blue shifted.

36.

When an electron "drops down" to a lower energy orbit around an atom, it emits a ________.

a)

proton

b)

neutron

c)

electron

d)

photon

37.

When you look at a galaxy that is 2 billion light years away, you see the galaxy as it was ___________ years ago.

a)

2 billion

b)

2 million

c)

zero

d)

20 billion

38.
Why is the Hubble telescope located in space?
a)
So it can be closer to the stars it magnifies
b)
They have very large optical lenses
c)
So its images arent distorted by Earth's atmosphere 
d)
So it can be operated by astronauts 
39.
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
40.
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
41.
What is the MAJOR problem with trying to see stars in or near a city?
a)
Not as many people with telescopes
b)
Light pollution
c)
Clouds
d)
The stars are too far away.
42.
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
43.

Modern telescopes are reflecting because: (Choose all that apply)

a)

Lenses are difficult to manufacture

b)

Lenses are heavy and fragile

c)

lenses absorb light that passes through them

d)

Lenses require only 1 perfect surface

44.

One of the issues created by the air surrounding us is:

a)

Interferometry

b)

Reflection

c)

Interference

d)

Atmospheric blurring

45.

What are disadvantages of refracting telescopes (choose all)

a)

images are wrong color

b)

images are more blurry

c)

gravity can distort the lens

d)

images may be too big

46.

What is the correct order of the visible light spectrum?

a)

Red, yellow, orange, blue, violet, indigo

b)

Violet, purple, indigo, blue, green, yellow, orange

c)

Green, yellow, blue, indigo, red, orange,

d)

Red, orange, yellow, green, blue, indigo, violet

47.

What wave has the longest wavelength and lowest energy?

a)

Gamma rays

b)

Infrared

c)

Radio

d)

Visible light

48.

An example of a wave with a short wavelength and high energy is a

a)

Gamma Ray

b)

Microwave

c)

Visible light wave

d)

Infrared wave

49.

What kind of electromagnetic radiation do we feel as heat?

a)

Gamma rays

b)

Visible light waves

c)

Infrared waves

d)

X rays

50.

Which of the following electromagnetic waves do we use to heat our food and for cellular phones?

a)

Radio Waves

b)

Microwaves

c)

Visible Light

d)

Gamma Rays

51.

Which electromagnetic waves help doctors detect broken bones inside your body?

a)

gamma rays

b)

x-rays

c)

ultraviolet rays

52.

How much of the electromagnetic spectrum is made up of visible light?

a)

only a small portion

b)

a very large portion

c)

about half

53.

When you put light through a prism it separates into different colors called a

a)

spasm

b)

special

c)

spectrum

d)

spork

54.

The distance from the top of one wave to the top of the next is

a)

wavelength

b)

wash line

c)

frequency

d)

amplitude

55.

Only waves the eye can detect

a)

UV

b)

Microwave

c)

Visible Light

d)

Infrared

56.

All electromagnetic waves travel at the same speed in the same medium.

a)

true

b)

false

c)

3 m/s

d)

spectrum

57.

Particles of light are called photons.

a)

true

b)

false

58.
When light passes through a lens, it _____
a)
reflects
b)
is absorbed
c)
bounces
d)
changes direction
59.

Telescopes are only able to detect visible light.

a)

True

b)

False

60.

Which of these improve the image quality of a telescope?

a)

Decreasing the size of the aperture

b)

Increasing the size of the aperture

c)

Placing the telescope higher up in the atmosphere

d)

Placing the telescope in space

e)

Decreasing light pollution

61.

X-rays are absorbed by the atmosphere. Where is the best location for an x-ray telescope?

a)

On top of a mountain

b)

At sea level

c)

In space

d)

Underground

62.
The full spectrum of light energy is called the__________
a)
broad spectrum
b)
electromagnetic spectrum
c)
helium spectrum 
d)
natural light spectrum
63.
A light year is the 
a)
distance that light travels in one year
b)
Speed at which light travels 
64.
The average distance between the earth and the sun is the 
a)
astronomical unit 
b)
Light year
65.
Light Years are a measure of:
a)
time
b)
speed
c)
distance
d)
light
66.

What is the time taken for the light to travel between the Sun and Earth?

a)

2 minutes

b)

4 minutes

c)

8 minutes

d)

12 minutes

67.

Why do we use light years and astronomical units to measure distances in space?

a)

Scientists want to sound smart.

b)

Hubble discovered these units and wanted to use them.

c)

Space is too small to use km, it wouldn't make sense.

d)

Space is too big, vast, enormous to use traditional units, like miles or kilometres.

68.

How long is an Astronomical Unit?

a)

3.0x108 miles

b)

93,000,000 miles

c)

3 miles

d)

8 miles

69.
The formation of elements is known as _________.
a)
nucleotides
b)
Synthogenesis
c)
nuclear fission
d)
nucleosynthesis
70.

Which process produced Star’s energy?

a)

combustion

b)

decomposition

c)

nuclear fission

d)

nuclear fusion

71.

What term below is defined as the process of linking several telescopes together so they can function as one telescope?

a)

Hubble Space Telescope

b)

Interferometry

c)

Refracting Telescope

d)

Reflecting Telescope

72.

Which of these is a process that is unique to radio telescopes?

a)

Spectrometry

b)

Inferferometry

c)

Photometry

d)

Photography

73.

It looks like a W or M depending on the time of the year.

a)

Cassioppeia

b)

Casioppeia

c)

Cassiopeia

d)

Casopeia

74.

There are _____ constellations named by early astronomers.

a)

78

b)

88

c)

68

d)

98

75.
A constellation is a group of visible ____ that form a pattern when viewed from Earth.  
a)
planets
b)
stars
c)
patterns
d)
creatures
76.
People in the Northern Hemisphere do see the same constellations as the people in the Southern Hemisphere.
a)
True
b)
False
77.
The sky is divided into ____ constellations.
a)
11
b)
22
c)
44
d)
88
78.
What constellation has the Little Dipper as part of its pattern?
a)
Ursa Minor
b)
Ursa Major
c)
Polaris
d)
Andromeda
79.
Ursa Major (Larger Bear) has this asterism in its pattern 
a)
the Little Dipper
b)
the Big Dipper
c)
Orion
d)
The Crux
80.
The term Zodiac refers to ...
a)
the light from Saturn's rings
b)
the head of the Celestial Empire
c)
a method for making astrological predictions
d)
a group of constellations lying near the ecliptic
81.
As the earth rotates on its axis, the constellations and stars in them appear to _________.  
a)
move across the sky
b)
stand still in the sky
c)
move around each other
d)
rotate
82.

These constellations circle the North Star and never appear to go below the horizon.

a)

Circumpolar Constellations

b)

Northern Constellations

c)

Southern Constellations

d)

Zodiac Constellations

83.

These constellations lie on the ecliptic and for about month, the sun hides one of the constellation.

a)

Circumpolar Constellations

b)

Northern Constellations

c)

Southern Constellations

d)

Zodiac Constellations

84.

Which of the following instrument is used to analyze and view the stars and constellations?

a)

Microscope

b)

Telescope

c)

Binoculars

85.

If you are located at the North Pole, where will you see the Polaris?

a)

Overhead

b)

Just above the horizon

c)

Around 45° from the horizon

d)

Polaris will not be seen in the North Pole

86.

Why are some constellations not seen in certain months?

a)

Because the earth revolves around the sun.

b)

Because the brightness of the sun outshines their visibility.

c)

Because of the gravity that affects the rotation and revolution of the earth.

d)

Because of the tidal waves attracting each other, creating a huge tsunami that washed out the constellation.

87.

Why does Polaris not seem to move during the night?

a)

Because it is located directly above the North Pole

b)

Because it is fixed in the sky

c)

Because Ursa Minor does not move

d)

Because it revolves around the Sun with Earth

88.

The Big Dipper is an asterism of what constellation?

a)

Cassiopeia

b)

 Pegasus

c)

Centaurus    

d)

Ursa Major

89.

Asterisms contain constellations, but constellations don't contain asterisms.

a)

True

b)

False

90.

1. Which type of constellation appears to move in circle around the night sky and are always above the horizon?

a)

Zodiacal

b)

Circumpolar

c)

Seasonal

91.

Stars are still in the sky during the day, we just can't see them because of the sun's light.

a)

True

b)

False

92.

We see different stars in the sky depending on the season.

a)

True

b)

False

93.
If you live in the Northern Hemisphere, at what time of year can you see Polaris, the north star? Choose the best answer.
a)
summer
b)
winter
c)
all year around
d)
never, its on the other side of earth
94.

If you live in the Southern Hemisphere, at what time of year can you see Polaris, the north star? Choose the best answer.

a)
summer
b)
winter
c)
all year around
d)
never, its on the other side of earth
95.

People in the Northern Hemisphere see all of the same constellations as the people in the Southern Hemisphere.

a)

True

b)

False

96.
Slow, circular movement at the top of Earth's axis
a)
precession
b)
barycenter
c)
revolution
97.

The slow process traces out a cone in the sky over many years which causes the North Star to change every 13000 years. It has a small affect on climate change.

a)

eccentricity

b)

precession

c)

nutation

d)

perihelion

98.

They lie on either side of the celestial equator which is the projection of the Earths equator to the sky.

a)

North Circumpolar Constellation

b)

South Circumpolar Constellation

c)

Equation Constellation

d)

Equatorial Constellation

99.

The Circumpolar Constellations travel around

a)

Polaris

b)

the sky

c)

the big dipper

d)

the earth

100.

What do you call constellations that are only visible during certain seasons?

a)

The Major Constellations

b)

Northern Constellations

c)

Southern Constellations

d)

Seasonal Constellations

101.

What do you call constellations that can be seen year round?

a)

Seasonal Constellations

b)

Circumpolar Constellations

c)

Minor Constellations

d)

Draco's Constellations

102.

The Big Dipper is a(n) __.

a)

constellation

b)

asterism

c)

both

d)

neither

103.
When looking in the night sky in the northern hemisphere, you notice that one star is hardly moving at all, we call these polestars. What is the name of our polestar?
a)
Polaris
b)
Ursa major
c)
Alpha Centauri
d)
The Sun
104.
Within Ursa Major we find the Big Dipper. What do we call patterns of stars found within larger images?
a)
Small Constellations
b)
Asterisms
c)
Ursa Minor
d)
Little Stars
105.
Who founded constellations?
a)
Chinese
b)
Europeans
c)
Ancient Greeks
d)
Americans

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