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WorksheetsSci 3p 1st U3 : The Universe and the Solar System
Total questions: 115
Worksheet time: 2hrs 55mins
Name
Class
Date
1.
The number of galaxies in the universe is about …..... million galaxies.
a)
10000
b)
100000
c)
20000
d)
200000
2.
The building units of the universe are ….........
a)
planets.
b)
stars.
c)
galaxies.
d)
moons.
3.
Galaxies are formed of groups of …......
a)
moons.
b)
constellations.
c)
stars.
d)
planets.
4.
Galaxies gather in groups known as ….........
a)
galaxies clusters.
b)
solar system.
c)
ancestral galaxies.
d)
planets.
5.
….............. are located in the spiral arms of Milky Way galaxy.
a)
Old stars
b)
Moons
c)
Small stars
d)
Big stars
6.
…........ is the star of our solar system.
a)
Moon
b)
Galaxy
c)
The Earth
d)
The Sun
7.
The Sun and the surrounding planets revolve around the centre of the …...
a)
Earth.
b)
Moon.
c)
Galaxy.
d)
Venus.
8.
The solar system consists of the Sun and ….... planets rotate around the Sun.
a)
nine
b)
eight
c)
six
d)
seven
9.
The solar system is located in one of the ….... arms of the Milky Way galaxy.
a)
spiral
b)
cylindrical
c)
straight
d)
spherical
10.
The Sun takes about ….... to complete one rotation around the centre of the galaxy.
a)
220 thousand years
b)
220 million years
c)
202 million years
d)
202 years
11.
The light year is …..........
a)
the distance covered with light in one year.
b)
the light speed in km/sec.
c)
the time consumed by light to cover a certain distance.
d)
the speed of light and electromagnetic waves in km/sec.
12.
Astronomers measure the distances between stars with light year, because the stars …...........
a)
generate great amounts of light.
b)
seem small light points.
c)
are millions of kilometres away from each other.
d)
generate heat.
13.
The scientists believe that the universe emerged from a massive explosion and it is in …........
a)
continues contraction.
b)
contraction then expansion.
c)
expansion then contraction.
d)
continues expansion.
14.
The continuous expansion of the universe is due to ….... as time passes.
a)
separation of galaxies.
b)
approaching of galaxies.
c)
stability of galaxies.
d)
slow of galaxies motion.
15.
scientists believe that the matter of the universe was a ….......... Ball of high pressure and high temperature.
a)
liquid
b)
solid
c)
gaseous
d)
iron
16.
After minutes from the Big Bang, the temperature becomes …....... million degrees.
a)
100
b)
1000
c)
10000
d)
100000
17.
........ are originated after about 2000 : 3000 million years of the Big Bang.
a)
Galaxies
b)
Stars
c)
Planets
d)
Ancestral galaxies
18.
…......... of the to form after 3000 million years began Big Bang.
a)
Galaxies
b)
Stars
c)
Planets
d)
Ancestral galaxies
19.
The two gases which produced galaxies, stars and universe over millions of years are …........
a)
oxygen and helium.
b)
oxygen and carbon dioxide
c)
hydrogen and helium.
d)
hydrogen and carbon dioxide.
20.
Within minutes after Big Bang, hydrogen gas was formed by a percentage of.........
a)
0.25
b)
0.5
c)
0.75
d)
1
21.
Within minutes after Big Bang, helium gas was formed by a percentage of........
a)
0.75
b)
0.65
c)
0.55
d)
0.25
22.
According to the Big Bang theory, within minutes from the origin of the universe, the ratio of hydrogen to helium is ….......
a)
75 : 1
b)
25 : 1
c)
3 : 1
d)
1 : 3
23.
The Milky Way galaxy took its disc form after about …..... million years from the Big Bang.
a)
1000
b)
3000
c)
5000
d)
10000
24.
The Sun was born after about …... million years from the Big Bang.
a)
3000
b)
2000
c)
15000
d)
10000
25.
The earliest life forms began to appear on the Earth after about …..... million years from the Big Bang.
a)
15000
b)
13000
c)
12000
d)
10000
26.
Planets rotate around the Sun by the effect of the gravity of …......
a)
the Sun.
b)
Jupiter.
c)
the Earth.
d)
the Moon
27.
The biggest star that can be seen clearly by people on the Earth is …....
a)
Saturn.
b)
the Sun.
c)
Uranus.
d)
Neptune.
28.
The theory which explains how the universe originated is ….... theory.
a)
crossing star
b)
nebular
c)
solar nebular
d)
Big Bang
29.
From the oldest theories which is explained the evolution of the solar system is the theory of ….....
a)
the crossing star.
b)
the nebula.
c)
the Big Bang.
d)
Fred Hoyle.
30.
The scientist who established the nebular theory is …........
a)
Fred Hoyle.
b)
Chamberlain.
c)
Laplace.
d)
Moulton.
31.
According to Laplace assumptions, the nebula gradually lost its heat, so ….....
a)
its size contracted only.
b)
its revolving speed around itself increased only.
c)
it is vanished.
d)
its size contracted and its revolving speed around itself increased.
32.
Laplace theory assumed that the gaseous rings separate from nebula after its cooling and freezing forming the …...
a)
Sun.
b)
planets of the solar system.
c)
gaseous ball.
d)
universe.
33.
…....... theory assumed that the solar system was originally a glowing gaseous sphere.
a)
Nebular
b)
Crossing star
c)
Modern
d)
Big Bang
34.
The scientist(s) who established the crossing star theory is/are …..........
a)
Chamberlain and Moulton.
b)
Laplace.
c)
Newton.
d)
Fred Hoyle.
35.
…........ theory assumed that the origin of the solar system was from the explosion of the expanded part of the Sun forming a gaseous line of a great length from the Sun due to a huge star approached to it.
a)
Nebular
b)
Big Bang
c)
Crossing star
d)
Modern
36.
The founder of modern theory to explain the origin of the solar system is …......
a)
Chamberlain.
b)
Moulton.
c)
Fred Hoyle.
d)
Laplace.
37.
In the modern theory, bombing the star nucleus away was due to …..........
a)
the force of gravity.
b)
collision by asteroids.
c)
drop in temperature.
d)
huge nuclear reactions.
38.
Fred Hoyle assumed that the Sun controls in the orbits of planets around it due to ….......... of the Sun.
a)
the temperature
b)
rotational speed
c)
the attraction force
d)
glowing
39.
Astronomers use special equipment to study the Sun, this equipment is the …......
a)
glasses.
b)
telescope.
c)
lens.
d)
mirror.
40.
The Hubble telescope was launched in April in ….......
a)
1905
b)
1990
c)
1995
d)
1959
41.
The Earth is the space that contains all the galaxies, stars, planets, moons and living organisms.
a)
True
b)
False
42.
Galaxies move away in the cosmic space.
a)
True
b)
False
43.
Galaxies rotate in a system around the centre of the universe.
a)
True
b)
False
44.
The universe contains various galaxies that move away from each other.
a)
True
b)
False
45.
Each group of stars is gathered in the solar system.
a)
True
b)
False
46.
The solar system is located at the edge of Milky Way galaxy.
a)
True
b)
False
47.
The solar system contains a lot of stars.
a)
True
b)
False
48.
Eight planets including the Earth rotate around the galaxy.
a)
True
b)
False
49.
Nine planets rotate around the Sun.
a)
True
b)
False
50.
The universe emerged from the particles of oxygen and nitrogen.
a)
True
b)
False
51.
The universe is in a state of continuous expansion.
a)
True
b)
False
52.
Galaxies emerged from the Big Bang.
a)
True
b)
False
53.
The matter of the universe was a gaseous ball of high pressure and high temperature.
a)
True
b)
False
54.
Galaxies began to form after about 2000 million years from the Big Bang.
a)
True
b)
False
55.
Our galaxy took its disc from after about 5000 million years from the Big Bang.
a)
True
b)
False
56.
The crossing star is the largest star that can be seen from the surface of the Earth.
a)
True
b)
False
57.
The gravity of the Earth keeps the rotation of planets in fixed orbits around the Sun.
a)
True
b)
False
58.
An assumption of the crossing star theory is that a star revolves near the Sun.
a)
True
b)
False
59.
Fred Hoyle who put the nebular theory about the evolution of the solar system.
a)
True
b)
False
60.
According to modem theory the star exploded due to huge nuclear reactions.
a)
True
b)
False
61.
According to Laplace theory, the origin of the solar system was the Sun.
a)
True
b)
False
62.
Attraction force of the Sun that controls the orbits of planets around it, is one of Laplace’s assumptions.
a)
True
b)
False
63.
Each galaxy has a distinctive shape according to the harmony and order of the groups of …....... in it.
a)
planets
b)
stars
c)
circular
d)
spiral
64.
The solar system lies in …..... galaxy.
a)
Andromeda
b)
Milky Way
c)
Big Bang
65.
The …...... is the distance covered with light in one year.
a)
galaxy
b)
light year
c)
edges
d)
kilometre.
66.
The old stars gather in the …......... of the galaxy.
a)
edges
b)
centre
c)
circular
d)
spiral
67.
The solar system lies in one of the …........ arms of the Milky Way galaxy.
a)
circular
b)
spiral
c)
edges
d)
centre
68.
The solar system contains many ….........
a)
stars.
b)
planets.
c)
circular
d)
spiral
69.
The ….......... is a big star can seen from the Earth.
a)
crossing star
b)
Sun
c)
Andromeda
d)
Milky Way
70.
The unit for measuring distances between galaxies is …........
a)
kilometre.
b)
light year.
c)
galaxy
d)
edges
71.
The Sun takes about …......... million years to complete one rotation around the centre of the galaxy.
a)
320
b)
220
c)
420
d)
120
72.
The Sun and the surrounding planets revolve around the centre of the ….........
a)
solar system.
b)
Galaxy.
c)
circular
d)
spiral
73.
According to Big Bang theory the universe is formed by merging of …......... particles.
a)
oxygen and nitrogen
b)
hydrogen and helium
c)
oxygen and hydrogen
d)
hydrogen and oxygen.
74.
Many scientists believe that the universe emerged from a massive explosion called Big Bang since …........ years.
a)
500 thousand
b)
15000 million
c)
10000 million
d)
25000 million
75.
The theory that explains the origin of the universe is the ….........
a)
Nebular theory.
b)
Big Bang theory.
c)
The crossing star theory.
d)
The modem theory of the world.
76.
The ….......... theory depends on there is something that looks like clouds or nebula in the space.
a)
Big Bang
b)
Nebular
c)
The crossing star
d)
The modem
77.
The …...... is a glowing gaseous sphere revolving around itself from which the solar system was originated.
a)
crossing star
b)
nebula
c)
Big Bang
d)
The modem
78.
The scientist ….......... published a research entitled "World order".
a)
Isac Newton
b)
Pirre Simon Laplace
c)
Laplace.
d)
Moulton.
79.
Nebular theory suggested that the solar system was originated from a glowing gasous sphere revolving around ….....
a)
the Sun.
b)
itself.
c)
the galaxy.
d)
the Earth.
80.
The Earth rotates in a fixed orbit due to the effect of the .........
a)
Earth's gravity.
b)
Sun's gravity.
c)
galaxy's gravity.
d)
Moon's gravity.
81.
The Earth planet belongs to a galaxy called …..........
a)
Hubble.
b)
the Milky Way galaxy.
c)
Andromeda
d)
Big Bang
82.
The founder(s) of crossing star theory is …........
a)
Laplace.
b)
Chamberlain and Moulton.
c)
Isac Newton
d)
Pirre Simon Laplace
83.
Sudden violent …..... reactions occur within the star which led to its explosion.
a)
chemical
b)
unclear
c)
physical
84.
The scientist …........ established the modern theory to explain the origin of the solar system.
a)
Moulton
b)
Fred Hoyle.
c)
Laplace.
d)
Pirre Simon Laplace
85.
The space which contains all and everything. the galaxies, stars, planets, moons, living organisms and everything.
a)
The universe.
b)
Galaxy.
c)
Earth.
d)
Sun
86.
It is the wide and extended space that contains galaxies.
a)
The universe.
b)
Galaxy.
c)
Earth.
d)
Sun
87.
The greatest units that form the universe.
a)
Galaxies.
b)
Stars.
c)
Light Year.
d)
Earth.
88.
A large gathering groups of stars found in clusters.
a)
Galaxies.
b)
Stars.
c)
Light Year.
d)
Earth.
89.
Groups of stars that rotate together in the space by the effect of gravity.
a)
Galaxies.
b)
Stars.
c)
Light Year.
d)
Earth.
90.
Many groups of stars have distinctive shape and harmony.
a)
Galaxies.
b)
Stars.
c)
Light Year.
d)
Earth.
91.
The group of galaxies which revolves together in the universe space due to the gravity.
a)
Galaxies dusters.
b)
The universe.
c)
Stars.
d)
Earth.
92.
It contains all the stars we see at night in the sky.
a)
The Milky Way galaxy.
b)
Andromeda.
c)
Big Bang.
93.
The galaxy that is our solar system belongs to.
a)
The Milky Way galaxy.
b)
Andromeda.
c)
Big Bang.
94.
A galaxy appears in the sky at night as spreading straw or splashing milk.
a)
The Milky Way galaxy.
b)
Andromeda.
c)
Big Bang.
95.
It contains the Sun and the solar system.
a)
The Milky Way galaxy.
b)
Andromeda.
c)
Big Bang.
96.
It is located in one of the spiral arms of the Milky Way galaxy on the edge of the galaxy.
a)
The solar system.
b)
Galaxies.
c)
Stars.
d)
Light Year.
97.
It contains the Sun and eight planets revolving around the Sun.
a)
The solar system.
b)
Galaxies.
c)
Stars.
d)
Light Year.
98.
The unit that is used to measure the distances between the celestial bodies.
a)
Light year.
b)
The Milky Way galaxy.
c)
Galaxies.
d)
The universe.
99.
The distance that is covered with light in one year.
a)
Light year.
b)
The Milky Way galaxy.
c)
Galaxies.
d)
The universe.
100.
The continuous separation between galaxies in the universe due to their regular motion.
a)
Expansion of the universe.
b)
The attraction force of the Sun.
c)
The modem theory of the world.
d)
Solar telescopes.
101.
The expansion of the universe and merging of atomic particles forming helium and hydrogen gases.
a)
Big Bang theory.
b)
Nebular theory.
c)
Crossing star theory.
d)
The modem theory of the world.
102.
A theory that explains the origin of the universe due to a great explosion, followed by continuous expansion and changing processes since 15000 million years.
a)
Big Bang theory.
b)
Nebular theory.
c)
Crossing star theory.
d)
The modem theory of the world.
103.
The biggest star that can be seen clearly by people on the Earth.
a)
The Sun.
b)
The Eart.
c)
The Moon.
d)
The Galaxy.
104.
The force that controls in the orbits of planets around the Sun according to modern theory.
a)
The attraction force of the Sun.
b)
Expansion of the universe.
c)
The modem theory of the world.
d)
Solar telescopes.
105.
The scientist who established the nebular theory.
a)
Laplace.
b)
Chamberlain and Moulton.
c)
Isac Newton
d)
Moulton.
106.
The scientists who established the crossing star theory about the evolution of the solar system.
a)
Chamberlain and Moulton.
b)
Laplace.
c)
Isac Newton
d)
Pirre Simon Laplace
107.
A flat gaseous round disk that formed the solar system.
a)
Nebula
b)
crossing star
c)
Big Bang
d)
The modem
108.
A glowing gaseous sphere revolving around itself that formed the solar system.
a)
Nebula
b)
crossing star
c)
Big Bang
d)
The modem
109.
A theory assumed that the solar system was originally a glowing gaseous sphere revolving around itself.
a)
Nebular theory.
b)
Big Bang theory.
c)
Crossing star theory.
d)
The modem theory of the world.
110.
A theory assumed that the solar system was originally a big star (the Sun).
a)
The crossing star theory.
b)
Nebular theory.
c)
Big Bang theory.
d)
The modem theory of the world.
111.
A theory assumed that the solar system was originally a star rather than the Sun.
a)
The modem theory of the world.
b)
The crossing star theory.
c)
Nebular theory.
d)
Big Bang theory.
112.
A theory assumed that the solar system was originally a star which was glowing for a short time and then its glowing disappears gradually.
a)
The modem theory of the world.
b)
The crossing star theory.
c)
Nebular theory.
d)
Big Bang theory.
113.
Glowing of a star for a short time to become one of the most shining stars in the sky, then its glowing disappears gradually to return as it was.
a)
Stars explosion phenomenon.
b)
The attraction force of the Sun.
c)
Solar telescopes.
114.
Special equipments centered on the Earth or carried into space used to study the Sun.
a)
Solar telescopes.
b)
Stars explosion phenomenon.
c)
The attraction force of the Sun.
115.
An equipment was launched to the space, allows astronomers an opportunity to study the evolution of the universe after the Big Bang.
a)
Hubble telescope.
b)
Laplace telescope.
c)
Isac Newton telescope.
d)
Moulton telescope.
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