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Solar System (Astro)

Total questions: 82

Worksheet time: 24mins

Name
Class
Date
1.
The first planet of the solar system?
a)
Sun
b)
Venus
c)
Earth
d)
Mercury
2.
The fourth planet is
a)
Venus
b)
Earth
c)
Mars
d)
Jupiter
3.
Neptune comes after
a)
Jupiter
b)
Saturn
c)
Uranus
d)
Neptune
4.
This is no longer a planet
a)
Neptune
b)
Io
c)
Pluto
d)
moon
5.
The only planet with water in the surface is __________________. 
a)
Mercury
b)
Venus
c)
Earth
d)
Mars
6.
All inner planets are alike because______________.
a)
They have a solid and rocky surface
b)
They are the largest
c)
They are the coldest
d)
They have many moons
7.
All outer planets are alike because ______________.
a)
They are warm
b)
They are small
c)
They are made mostly of gas
d)
They have few moons
8.

Why isn't Pluto considered a planet any more?

a)

It doesn't orbit the Sun.

b)

It doesn't have enough gravity to crush itself into a sphere.

c)

It didn't clear it's orbital path.

d)

It doesn't have a moon.

9.

Heliocentrism states that:

a)

Saturn is at the center of the universe

b)

The sun is at the center of the universe

c)

Jupiter is at the center of the universe

d)

The Earth is at the center of the universe

10.

Geocentrism states that:

a)

The Earth is at the center of the universe

b)

Jupiter is at the center of the universe

c)

The Sun is at the center of the universe

d)

The Moon is at the center of the universe

11.

Ptolemy's model of the universe:

a)

Used ellipses instead of circles

b)

Explained retrograde motion of planets with epicycles

c)

Did not include the Earth at all

d)

Had the sun at its center

12.

Motion in the universe in classical astronomy (as per Plato and Aristotle) _____.

a)

has the sun at its center

b)

disregards the sun

c)

is based on imperfect circular motion

d)

is made up of circles turning at uniform rates

13.

What is it called for when a planet is moving backwards in the night sky?

a)

retrograde

b)

prograde

c)

heliograde

d)

geograde

14.

Who was the person that popularized the geocentric model?

a)

Galileo

b)

Aristotle

c)

Copernicus

15.

What was the biggest problem with the geocentric model?

a)

it was too complicated

b)

it couldn't explain the movement of the planets

c)

it was against what popular religions believed

16.

Which person popularized the heliocentric model?

a)

Ptolemy

b)

Aristotle

c)

Copernicus

17.

What is the biggest difference between the Geocentric Model and the Heliocentric Model?

a)

the shape of the planets' orbits

b)

the movement of the moon

c)

the center of the solar system

18.

Kepler's first law states that the orbits of the planets are in the shape of a/an...

a)

perfect circle

b)

ellipse

c)

spiral

19.

Kepler's second law of planetary motion states that a planet moves____________ when ______________ to/from the sun.

a)

slower, closer

b)

faster, farther

c)

faster, closer

20.

What does the Heliocentric system look like?

a)
b)
c)
d)
21.
  What does "geo-" mean?
a)
Earth
b)
sun
c)
Center
22.

Which scientific instrument did Galileo use to change the world?

a)

telescope

b)

spyglass

c)

mirror

d)

magnifying glass

23.

Who supported Copernicus's Heliocentric Model

a)

Galileo

b)

Plato

c)

Ptolemy

d)

Aristotle

24.

Which astronomer first observed the phases of Venus and Jupiter's moons with the help of a telescope?

a)

Gailieo

b)

Aristarchus

c)

Kepler

d)

Aristotle

e)

Copernicus

25.

Who discovered the shape of a planet's orbit is actually an ellipse?

a)

Ptolemy

b)

Copernicus

c)

Kepler

d)

Galileo

26.

What does the word "Helio" mean?

a)

Earth

b)

Mars

c)

Sun

d)

Juputer

27.

These two astronomers confirmed Copernicus's heliocentric theory with more evidence.

a)

Galileo and Aristotle

b)

Kepler and Galileo

c)

Ptolemy and Kepler

d)

Aristotle and Ptolemy

28.

What did Ptolemy's and Aristotle's model have in common?

a)

Both models had Earth as the center of the solar system.

b)

Both discovered galaxies beyond the Milky Way.

c)

Both models had the sun as the center of the solar system.

d)

Both model had objects in solar system have epicycles.

29.

Who discovered Jupiter's four moons?

a)

Copernicus

b)

Galileo

c)

Brahe

d)

Aristotle

30.
Kepler was assistant to this astronomer.
a)
Tycho Brahe
b)
Ptolemy
c)
Copernicus
d)
Aristotle
31.
Using Tycho’s Brahe's data, found elliptical orbits of planets.
a)
Kepler
b)
Ptolemy
c)
Copernicus
d)
Aristotle
32.

According to Kepler, which planet travels the fastest?

a)

Earth

b)

Jupiter

c)

Mercury

d)

Neptune

33.

What trait do all solar system models share?

a)

All planets have epicycles.

b)

The moon orbits Earth.

c)

The stars rotate around the Sun.

d)

The planets have a circular orbit around the Sun.

34.

How did the Ptolemaic model differ from other proposed solar system models?

a)

It said that the planets have epicycles.

b)

It said that the planets rotate on their axes.

c)

It said that the planets revolve around the Sun.

d)

It said that the planets and the Sun revolve around Earth.

35.

Why was Copernicus’s heliocentric model not believed until Galileo and Kepler provided more evidence?

a)

The model had the moon orbiting Earth.

b)

The model was against religious teachings.

c)

The model could not explain retrograde motion.

d)

The model did not include all eight planets in the solar system.

36.

In order to explain retrograde motion, Ptolemy added these to the orbits of planets.

a)

Ellipses

b)

Epicycles

c)

Cycloids

d)

Parabolas

37.

Kepler was only able to formulate his laws of planetary motion because of the observations this scientist made.

a)

Tycho Brahe

b)

Galileo Galilei

c)

Linus Pauling

d)

Nicholas Copernicus

38.

Newton's first law states that an object at rest ____ and an object in motion ______ unless it experiences an unbalanced force.

a)

remains at rest; remains in motion

b)

remains in motion; remains at rest

c)

begins motion; stops

d)

stops; begins motion

39.
The tendency of an object to resist being moved or if in motion, being stopped is...
a)
Inertia
b)
Force
c)
Fricition
d)
Monty
40.

Newton's second law states: the unbalanced force acting on an object equals _____ ?

a)

gravity times acceleration

b)

mass times acceleration

c)

graivity divided by acceleration

d)

mass divided by acceleration

41.
The formula we get from the second law is...?
a)
F = m*a
b)
v = d/t
c)
a = v/t
d)
f = 1/T
42.
What is the force necessary to accelerate a 1785 kg car at a rate of 50 m/s/s?
a)
89,250 N
b)
35.7 N
c)
98.8 N
d)
75,620 N
43.
Which statement illustrates Newton’s first law?
a)
A stone will not move unless something pushes or pulls it
b)
As a car comes to a stop, the passengers continue to move forward
c)
A ball rolling across the floor eventually slows down
d)
All of them!
44.
All objects in the universe attract each other through gravitation force is called...
a)
The Law of Universal Gravitation
b)
The Law of Conservation of Momentum
c)
The Law of Thermodynamics
d)
The Law of Monty the Snake
45.
Which object is in true Free Fall?
a)
The International Space Station
b)
A skydiver
c)
An airplane
d)
Monty
46.
A student stands on a scale, and the scale reads 85 pounds. What is being measured by the scale?

a)
The volume of the student
b)
The mass of the student
c)
The gravity acting on the student
d)
The air pressure on the student
47.
An exploratory robot was sent to the planet Mars. The gravity on Mars is weaker than the gravity on Earth. Compared to the mass and weight of the robot on Earth, the robot on Mars has...
a)
less mass and weight.
b)
less mass but equal weight.
c)
equal mass and weight.
d)
equal mass but less weight.
48.
An ellipse is drawn around two points called
a)
aphelion
b)
perihelion
c)
foci
d)
axis
49.
When a planet orbits the Sun, one of the foci of the elliptical orbit is 
a)
the axis
b)
the perihelion
c)
the center
d)
the Sun
50.
The place where a planet is closest to the Sun as it orbits the Sun is called the
a)
perihelion
b)
aphelion
51.
The place where a planet is farthest away from the Sun in its orbit around the Sun is called the
a)
aphelion
b)
perihelion
52.
Where is the planet moving faster
a)
Position A to B
b)
Position B to C
c)
Position H to I
d)
Position I to J
53.
What is true about the area between points A, B and the Sun, and the area between points H, I and the Sun?
a)
The area between A, B and the Sun is the largest.
b)
The area between H, I and the Sun is the largest
c)
Both areas are equal in size
d)
There is not enough information to determine the areas
54.
What has an eccentricity of zero
a)
a straight line
b)
a large ellipse
c)
a circle
d)
a small ellipse
55.
A planet moves __________ when it is farthest from the sun.
a)
faster
b)
slower
56.
The farther away a planet is from the sun, the _______ it takes it to orbit the sun once. 
a)
longer
b)
shorter
57.

What is Astronomical Unit?

a)

1000 km

b)

The size of our solar system

c)

The average distance between Earth and the Sun

d)

The average distance between Earth and Moon

58.

Planet Zion has an orbital period of 1,509 days. If you are 25 years on Earth, how old would you be on Planet Zion?

a)

0.25 years

b)

4 years

c)

6 years

d)

103 years

59.

Planet Juice has an orbital period of 133 days. If you are 25 years on Juice, how old would you be on Planet Zion?

a)

2.7 years

b)

68.6 years

c)

1,942 years

d)

48,545 years

60.

This type of planet is very cold and Icy

a)

Terrestrial

b)

Jovian

61.

This type of planet has a thin atmosphere or no atmosphere at all

a)

Terrestrial

b)

Jovian

62.

These planets are often called "gas giants" or "ice giants"

a)

terrestrial

b)

jovian

63.

An example of this type of planet is Mars

a)

Terrestrial

b)

Jovian

64.

This type of planet is relatively small

a)

Terrestrial

b)

Jovian

65.

These planets are typically hot or warm

a)

Terrestrial

b)

Jovian

66.

These planets are made of heavier elements or metals

a)

Terrestrial

b)

Jovian

67.

These planets typically have a thick Hydrogen/ Helium atmosphere

a)

Terrestrial

b)

Jovian

68.

This type of planet may have rings

a)

Terrestrial

b)

Jovian

69.

This type of planet typically has many moons

a)

Terrestrial

b)

Jovian

70.

Based on Solar Nebular theory the planets all orbit the sun in the same direction

a)

True

b)

False

71.

Based on Solar Nebular Theory, the planets of our solar system should all rotate the same way on their axes.

a)

True

b)

False

72.

Solar Nebular Theory is the most widely accepted theory of how the solar system began

a)

True

b)

False

73.
Comets lose material when they get near ___
a)
planets
b)
other comets
c)
the Sun
d)
the outer solar system
74.
How long ago was our solar system formed?
a)
about 4.5 million years ago
b)
about 9.2 million years ago
c)
about 4.5 billion years ago
d)
about 9.2 billion years ago
75.
The doughnut-shaped region, just past Neptune, where icy objects have stable orbits is called ___
a)
the Gerard Belt
b)
the Scattered Disk
c)
the Kuiper Belt
d)
the Kuiper Disk
76.
The third region of icy objects, a spherical cloud which starts roughly 300 billion kilometers out, is called ___
a)
the Oort Cloud
b)
the Oort Disk
c)
the Kuiper Cloud
d)
the scattered disk
77.
What was the first Kuiper Belt Object to be discovered?
a)
Neptune
b)
Pluto
c)
Halley's Comet
d)
Comet Hale–Bopp
78.
Pluto orbits the Sun on an elliptical, mildly-tilted path, which brings it closer to the Sun than ___
a)
Uranus
b)
Saturn
c)
Jupiter
d)
Neptune
79.

What is it called when dust, gas, and rock particles accumulate together into massive objects like planetesimals?

a)

Accretion

b)

Contraction

c)

Condensing

d)

Heating

80.

What term describes a cloud of dust and gas many light-years across?

a)

Accreting

b)

Condensing

c)

Contracting

d)

Nebula

81.

True or False: Planetesimals form because gravity pulls dust and debris particles together.

a)

True

b)

False

82.

What do you call a "baby" planet that is just starting to form?

a)

Planetesimal

b)

Protostar

c)

Nebula

d)

Accreting

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