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Astronomy Unit 1 Study Guide

Total questions: 52

Worksheet time: 26mins

Name
Class
Date
1.
One complete revolution of the Earth around the sun takes about
a)
one rotation
b)
half a year
c)
one year
d)
one season
2.
The Earth takes about __________________ hours to complete one rotation of its axis.  
a)
12
b)
24
c)
14
d)
28
3.
What type of telescope is pictured above?
a)
reflective
b)
refracting
c)
Space
d)
radio
4.
The spinning of an object on its axis is called______
a)
orbit
b)
rotation
c)
revolution
d)
tide
5.
As the Earth travels around the sun, this tilt causes different areas of the Earth’s surface to get different amounts of daylight at different times of the year. The angle of the Sun’s rays to the surface also causes areas to have more or less of the Sun’s energy. This causes the ________.
a)
months
b)
day and night
c)
seasons
d)
years
6.
A ______ eclipse occurs when the moon passes between Earth and the sun, blocking the sunlight from reaching Earth. The moon's shadow then hits Earth.   
a)
solar eclipse
b)
lunar eclipse
c)
vernal equinox
d)
autumnal equinox
7.
A body that orbits a planet is a...
a)
Meteor
b)
Asteroid
c)
Satellite
d)
Comet
8.
Seasonal changes are caused by Earth's ........... around the sun.
a)
Orbit
b)
Revolution
c)
Rotation
d)
Tilt of axis
9.
Movement of Earth around the sun.
a)
Rotation
b)
Revolution
10.
The moon is a natural  ______ of Earth.
a)
comet
b)
axis
c)
satellite
d)
space probe
11.
Earth's ________ on its axis causes day and night.
a)
rotation
b)
revolution
c)
phase
d)
comet
12.

One full orbit of an object around another object is called a ________.

a)

axis

b)

rotation

c)

revolution

d)

satellite

13.
The __________ has planets, moons, comets, and asteroids.
a)
solar system
b)
earth
c)
rotation
d)
United States
14.
One of the main differences between the outer and inner planets is __________.
a)
The inner planets all have water
b)
the inner planets are much bigger than the outer planets
c)
the outer planets are gas planets
d)
the outer planets have rings, and the inner planets don't
15.
Which planet has the smallest pull of gravity?
a)
Saturn
b)
Jupiter
c)
Neptune
d)
Mercury
16.
Which is the largest object in our solar system?
a)
Sun
b)
Jupiter
c)
Earth
d)
Pluto
17.
A small object that appears as a streak of light as it enters earth's atmosphere.
a)
Asteroid
b)
Comet
c)
Moon
d)
Meteor
18.
People used to think that Earth was the center if the solar system, They thought everything orbited around it. They called this the _________ model.
a)
Geocentric
b)
Earth First
c)
Egocentric
d)
Solarology
19.
Why do the sun and moon appear to move across the sky?
a)
the rotation of the solar system makes the sun and moon seem to move
b)
the rotation of the earth make the sun and moon seem to move
c)
the sun and moon revolve around earth
d)
the earth revolves around the sun and moon
20.
How does changing the mass of objects affect the force of gravity?
a)
Increasing mass will decrease gravity
b)
Decreasing mass will increase gravity
c)
Mass will not affect gravity
d)
Increasing mass increases gravity
21.
How does changing the distance between objects affect the force of gravity?
a)
Decreasing distance increases gravity
b)
increasing distance increases gravity 
c)
Distance does not affect gravity
22.
The planet with the shortest year is
a)
Earth
b)
Neptune
c)
Pluto
d)
Mercury
23.
What holds the moon, the planets, and all other objects in orbit around the sun?
a)
ocean tides
b)
magnetism
c)
gravity
d)
the sun's heat and light
24.
which model of the solar system has the sun in the center with all of the planets orbiting it?
a)
heliocentric
b)
geocentric
25.
Which type of technology would you use to see far away objects?
a)
computer
b)
rover
c)
satellite
d)
telescope
26.
which technology would you use to collect rock samples from a nearby planet?
a)
computer
b)
rover
c)
satellite
d)
telescope
27.
which technology would you use to analyze data from a NASA mission
a)
computer
b)
rover
c)
satellite
d)
telescope
28.
which of the following is the cause of Mercury having a shorter year than Jupiter
a)
Mercury orbits closer to the sun
b)
Mercurys orbit is more circular than Jupiter
c)
Mercury rotates at a slower speed than Jupiter
d)
Mercury has a more elliptical orbit than Jupiter
29.
Which type of planet rotates faster?
a)
terrestrial
b)
gas giant
30.
The farther from the sun the _____________ the revolution (year)
a)
shorter
b)
longer
31.
Which season is taking place in the Northern Hemisphere in Position 3?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
32.

What theory states that at one time, the entire universe was confined to a dense, hot, super mass ball?

a)

Nebular Theory

b)

Identity Status Theory

c)

Theory of Relativity

d)

Big Bang Theory

33.

Galaxies are __________ from where the Big Bang occurred.

a)

Expanding

b)

Shrinking

c)

Not Moving

34.

What is the center of the universe in the Geocentric model?

a)

Mars

b)

Neptune

c)

The Sun

d)

The Earth

35.

What is the center of the universe in the heliocentric theory?

a)

Neptune

b)

Mars

c)

The Sun

d)

The Earth

36.

Who discovered three (3) laws of planetary motion?

a)

Galileo

b)

Newton

c)

Kepler

d)

Ptolemy

37.

What does the first law of Kepler state?

a)

The orbits of the planets are ellipses, with the sun at one focus

b)

The line joining the planet to the Sun sweeps out in equal areas in equal times around the ellipse

c)

The length of time it takes a planet to orbit the sun is proportional to its distance from the sun.

38.

What does the second law of Kepler state?

a)

The orbits of the planets are ellipses, with the Sun at one focus.

b)

The line joining the planet to the Sun sweeps out in equal areas in equal time as the planets travels around the ellipse

c)

The length of time it takes a planet to orbit the sun is proportional to its distance from the Sun

39.

What Galaxy does Earth reside in?

a)

Andromeda Galaxy

b)

Elliptical Galaxy

c)

Milky Way Galaxy

d)

Spiral Galaxy

40.

Who discovered the force that keeps planets from going out into space in a straight line?

a)

Kepler

b)

Newton

c)

Galileo

d)

Ptolemy

41.

What is the force that keeps the planets from going out into space in a straight line?

a)

Rotation

b)

Revolution

c)

Nutation

d)

Gravity

42.

________ is the turning or spinning of a body on its axis.

a)

Revolution

b)

Nutation

c)

Barycenter

d)

Rotation

43.

What causes day and night on Earth?

a)

Revolution

b)

Nutation

c)

Precession

d)

Rotation

44.

What is the term that refers to Earth when it is closest to the Sun?

a)

Perihelion

b)

Aphelion

c)

Nutation

d)

Barycenter

45.

What term refers to when Earth is the farthest from the Sun

a)

Nutation

b)

Barycenter

c)

Periherlion

d)

Aphelion

46.

What causes the seasons?

a)

Earth's Rotation

b)

Earth's Revolution

c)

Earth's tilt

d)

Earth doesn't have seasons

47.

If it is Summer in the N. Hemisphere what season is occurring in the S. Hemisphere?

a)

Fall

b)

Winter

c)

Summer

d)

Spring

48.

What is the slight movement over a period of 26,000 years that changes where Earth's axis points?

a)

Nutation

b)

Precession

c)

Barycenter

d)

Rotation

49.

What is the oscillatory movement of the axis of a rotation body or a wobble?

a)

Precession

b)

Rotation

c)

Nutation

d)

Barycenter

50.

The______________ theory describes how bodies of our solar system evolved from an enormous dust cloud called the solar nebula?

a)

Big Bang Theory

b)

Nebular Theory

c)

Theory of Light

d)

Theory of Dark

51.

The third law of Kepler states?

a)

The orbits of the planets are ellipses with the Sun at one focus

b)

The line joining the planet to the Sun sweeps out in equal area over equal time

c)

The closer the planet is to the Sun the faster the revolution occurs

52.

What is the shape of Earth's orbit?

a)

Circular

b)

Oval

c)

Ellipse

d)

Diamond

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