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Astronomy Unit 1 Review

Total questions: 49

Worksheet time: 28mins

Name
Class
Date
1.
How would you write 564,000,000 in scientific notation?
a)
5.64 x 10-7
b)
5.64 x 106
c)
5.64 x 108
d)
56.4 x 107
2.
When writing a number in scientific notation, the first number must be greater than 1, but less than 10.
a)
False
b)
True
3.
Express the following in scientific notation:
.000457
a)
457 x 106
b)
457 x 10-6
c)
4.57 x104
d)
4.57 x 10-4
4.
UNDERSTANDING
If the exponent is a negative number...
a)
you will get a large number
b)
you will get a small number
5.
When your exponent is negative, you move your decimal....
a)
to the right
b)
to the left
c)
to both sides
d)
nowhere.... the decimal goes nowhere
6.
What is 9.3 x 10-3 in standard form? 
a)
.093
b)
.0093
c)
.00093
d)
.000093
7.
A philosopher that proved the Earth is a sphere & thought it was at the center of the universe.
a)
William Herschel
b)
Isaac Newton
c)
Aristotle
d)
Nicolaus Copernicus
8.
He defined the brightnesses of stars (made a scale) & discovered the wobble of the Earth's axis
a)
Claudius Ptolemy
b)
Hipparchus
c)
Tycho Brahe
d)
Giovanni Cassini
9.
His model of the Earth-centered universe was the cornerstone of astronomy for 1,500 years
a)
Claudius Ptolemy
b)
Nicolaus Copernicus
c)
Charles Messier
d)
Galileo Galilei
10.
Began a new era of astronomy when he concluded that the Sun was the center of the universe
a)
Aristotle
b)
Isaac Newton
c)
Claudius Ptolemy
d)
Nicolaus Copernicus
11.
Built an observatory and made the most accurate astronomical observations for more than 20 yrs.
a)
Giovanni Cassini
b)
Tycho Brahe
c)
Hipparchus
d)
Isaac Newton
12.
Built a telescope and made discoveries which changed astronomy; discovered 4 moons of Jupiter
a)
Galileo Galilei
b)
Aristotle
c)
William Herschel
d)
Claudius Ptolemy
13.
discovered Jupiter's four moons
a)
Copernicus
b)
Galileo
c)
Brahe
d)
Aristotle
14.
Using Tycho’s Brahe's data, found elliptical orbits of planets.
a)
Kepler
b)
Ptolemy
c)
Copernicus
d)
Aristotle
15.
This image shows the:
a)
Geocentric Solar System
b)
Heliocentric Solar System
16.
A model of the solar system in which Earth and the other planets revolve around the SUN.
a)
Heliocentric
b)
Geocentric
17.
What force keeps the planets orbiting the sun?
a)
Gravity
b)
Magnetism
c)
Electricity
d)
Friction
18.
____ was an American astronomer with a large space telescope named after him.
a)
Hubble
b)
Ptolemy
c)
Newton
d)
Galileo
19.
Ancient astronomers used 'epicycles' to explain,
a)
Planetary transits
b)
Moon's phases
c)
Retrograde motion
20.
This person developed the heliocentric theory and was considered the founder of modern astronomy.
a)
Aristotle
b)
Copernicus
c)
Ptolemy
d)
Galileo
21.
Which astronomer created laws of gravity and motion? 
a)
Kepler
b)
Copernicus
c)
Brahe 
d)
Newton
22.

Eratosthenes used geometry and the distance between 2 cities to calculate

a)

an astronomical unit.

b)

a light year.

c)

the circumference of the Earth.

d)

the distance between the Sun and the Earth.

23.

What is a light year?

a)

It is the LUMINOSITY of the Sun compared to other stars.

b)

Like a regular year, only with less calories.

c)

It is the DISTANCE light travels in one year.

d)

It is the TIME it takes light from the Sun to get to the Earth.

24.

What are constellations?

a)

groups of galaxies gravitationally bound and close together in the sky

b)

apparent groupings of stars and planets visible on a given evening

c)

ancient story boards, useless to modern astronomers

d)

groups of stars gravitationally bound and appearing close together in the sky

e)

groups of stars making an apparent pattern in the celestial sphere

25.

Two sides of the triangle are each about 20 degrees of the sky. This can be imagined by holding your hands up to the sky like this:

a)

Two fists side by side

b)

One fist length

c)

A "Y" symbol (from sign language)

d)

Three finger widths

e)

Hook 'em horns symbol

26.
There are star pattern that are not official.  We call these unofficial star patterns ...
a)
Zeniths
b)
non-constellations
c)
asterisms
d)
Astrology
27.
A point in the sky directly overhead is called ...
a)
the zenith
b)
the acme
c)
the peak
d)
the nebula
28.
Which constellation is best known because it contains the “big dipper,” which looks like a ladle.
a)
Ursa Major
b)
Ursa Minor
c)
Orion
d)
Polaris
29.
What is the name or our spiral galaxy?
a)
Andromeda
b)
Milky Way
c)
Virgo
d)
Triangulum
30.
Astrology literally means _____
a)
"study of asteroids"
b)
"study of the gods"
c)
“study of the stars”
d)
"study of horoscopes"
31.
Which word means “law or culture of the stars"?
a)
astronomy
b)
astrology
c)
astrophysics
d)
cosmology
32.
Who invented calculus to help him understand the way objects moved in space?
a)
Johannes Kepler
b)
Tycho Brahe
c)
Isaac Newton
d)
Nicolaus Copernicus
33.
What percentage of the universe can we directly see?
a)
4%
b)
10%
c)
40%
d)
100%
34.

Convert this number into scientific notation: 950,000

a)

9.5 x 105

b)

9.5 x 10-9

c)

9.5 x 102

d)

None of the above

35.

Which number is the least in value

a)

5.0 x 10-9

b)

5.0 x 10-4

c)

5.0 x 106

d)

5.0 x 108

36.
7.82 x 10-6 is an example of scientific notation. The exponent of -6 tells you your number will be very ________.
a)
Large
b)
Small
c)
Basic
37.
The rule of scientific notation is to write all exponents with a base of ____.
a)
50
b)
5
c)
100
d)
10
38.
Which number is correctly written in scientific notation?
a)
5.67 x 105
b)
56.7 x 103
c)
0.567 x 106
39.
Convert to scientific notation:
520,000,000  
a)
52 x 107
b)
5.2 x 107
c)
5.2 x 108
d)
0.52 x 109
40.
Which astronomer of antiquity first applied a telescope to astronomical observation?
a)
Ptolemy
b)
Galileo Galilei
c)
Tycho Brahe
d)
Copernicus
41.
Who first suggested that earth rotated on its axis?
a)
Tycho Brahe
b)
Aristarchus
c)
Aristotle
d)
Copernicus
42.
Ancient astronomers used 'epicycles' to explain...?
a)
Retrograde Motion
b)
Constellation Movement
c)
Moon's Phases
d)
Planetary Transits
43.
This early Greek scientist was able to classify stars into six categories according to their brightness.
a)
Aristarchus
b)
Aristotle
c)
Ptolemy
d)
Hipparchus
44.

Astrology can be defined as

a)

the idea that the positions of the stars and planets at the time of our birth determine our personalities and influence our future.

b)

the scientific study of celestial objects such as planets, moons and stars.

c)

the scientific study of astrological phenomena such as the Big Bang Theory.

d)

the observation of the heavens using telescopes and other instruments.

45.

In astrology, the constellations that the Sun passes through are considered to be very important. These constellations make up the:

a)

Solar constellations

b)

Zodiac

c)

ecliptic

d)

Starry Vault

46.

Astrology is consider a pseudo-science.

a)

TRUE

b)

FALSE

47.
Slow, circular movement at the top of Earth's axis
a)
precession
b)
barycenter
c)
revolution
48.

This movement changes the direction of the Earth's axis and will cause the north star to change over time.

a)

barycenter

b)

precession

c)

nutation

d)

ellipse

49.

Causes the stars to change their apparent position in the sky (every 26,000 years)

a)

Nutation

b)

Precession

c)

Barycenter

d)

Revolution