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SPACE PHYSICS

Total questions: 108

Worksheet time: 1hrs 10mins

Name
Class
Date
1.

What is the final stage of a low mass star?

a)

White Dwarf

b)

Black Hole

c)

Red Giant

d)

Neutron Star

2.

What is the final stage of a high mass star?

a)

White Dwarf

b)

Black Hole

c)

Red Giant

d)

Neutron Star

3.

What is the final stage of a very high mass star?

a)

White Dwarf

b)

Black Hole

c)

Red Giant

d)

Neutron Star

4.

Which mass of star will have the shortest life span?

a)

Low Mass Star

b)

Medium Mass Star

c)

High Mass Star

d)

Very High Mass Star

5.

Which stage of life is the sun currently in?

a)

White Dwarf

b)

Planetary Nebula

c)

Main Sequence

d)

Red Giant

6.

What is the name of the cosmic cloud of dust and gas that is the first stage in the birth of a star?

a)

Protostar

b)

Spiral Galaxy

c)

Quasar

d)

Stellar Nebula

7.

A stellar nebula will eventually condense into a hot ball of mostly hydrogen called a __________. At this point, nuclear fusion has not yet started but it will soon.

a)

Protostar

b)

White Dwarf

c)

Brown Dwarf

d)

Main Sequence

8.

In a low-medium mass star, at the end of the red giant stage, the red giant's atmosphere expands outward to create a...

a)

White Dwarf

b)

Planetary Nebula

c)

Supernova

d)

Neutron Star

9.

In a low-medium mass star, after the end of the red giant phase, a hot inner core of the star is left over. This core is a called a __________. There is no longer nuclear fusion happening at this stage.

a)

White Dwarf

b)

Planetary Nebula

c)

Supernova

d)

Neutron Star

10.

In a high mass star, at the end of the red giant phase, the gravity causes the star to rapidly collapse. This collapse causes a massive explosion called a __________

a)

White Dwarf

b)

Planetary Nebula

c)

Supernova

d)

Neutron Star

11.

In a very high mass star, a supernova triggers the formation of a __________ which has a gravitational pull so strong that even light cannot escape.

a)

White Dwarf

b)

Neutron Star

c)

Stellar Nebula

d)

Black Hole

12.

Which elements are found in a main sequence star?

a)

Hydrogen (H)

b)

Helium (He)

c)

Carbon (C)

d)

Oxygen (O)

13.

Which is one of the heaviest element found in a red giant star?

a)

Nitrogen (N)

b)

Iron (Fe)

c)

Sulfur (S)

d)

Magnesium (Mg)

14.
What are some of the outcomes of nuclear fusion?
a)
Produce larger materials from the collision of smaller materials.
b)
Release energy.
c)
Produce smaller materials from the collision of larger materials.
d)
Produce larger materials from the collision of smaller materials & Release energy
15.
Where does fusion occur naturally?
a)
Underwater
b)
All around us
c)
In the radioactive waste
d)
On the sun
16.
Which atoms combine together during fusion reaction on the sun?
a)
Helium and Hydrogen atoms
b)
Hydrogen atoms
c)
Hydrogen and Lithium atoms
d)
Hydrogen and Carbon atoms
17.

Distance to stars are measured in light years because

a)

kilometers are to big

b)

the distance between stars is so large

c)

light speed is easy to measure

d)

light years is a measure of time not distance

18.

The two forces that balance each other inside a star are

a)

gravitational and thermal expansion

b)

electromagnetic and gravitational

c)

unstoppable and paperclip

d)

cosmic and nuclear fusion

19.

The collection of cosmic dust clouds in which stars emerge from.

a)

Stellar Nebula/Planetary Nebula

b)

Red Giant/Supergiant

c)

Neutron Star

d)

White Dwarf

e)

Black Hole

20.

The death of an average to low mass star results in which of these? (more than one answer is correct)

a)

Stellar Nebula/Planetary Nebula

b)

Red Giant/Supergiant

c)

Neutron Star

d)

White Dwarf

e)

Black Hole

21.

The death of a high mass star can be which of these? (more than one answer is correct)

a)

Stellar Nebula/Planetary Nebula

b)

Red Giant/Supergiant

c)

Neutron Star

d)

White Dwarf

e)

Black Hole

22.

The phase of a star's life when it starts depleting its hydrogen and begins periods of expansion.

a)

Stellar Nebula/Planetary Nebula

b)

Red Giant/Supergiant

c)

Neutron Star

d)

White Dwarf

e)

Black Hole

23.

The result of a massive star's death involving all mass collapsing to a singularity is which of these?

a)

Stellar Nebula/Planetary Nebula

b)

Red Giant/Supergiant

c)

Neutron Star

d)

White Dwarf

e)

Black Hole

24.

The result of a massive star's death involving compression strong enough to collapse atoms until protons and electrons combine to form neutrons.

a)

Stellar Nebula/Planetary Nebula

b)

Red Giant/Supergiant

c)

Neutron Star

d)

White Dwarf

e)

Black Hole

25.

The result of a massive star's death involving a small body of matter spinning at unimaginable speeds which generates extreme magnetic fields.

a)

Stellar Nebula/Planetary Nebula

b)

Red Giant/Supergiant

c)

Neutron Star

d)

White Dwarf

e)

Black Hole

26.

The phase of a star's life involving the burning of elements heavier than hydrogen is which of these?

a)

Stellar Nebula/Planetary Nebula

b)

Red Giant/Supergiant

c)

Neutron Star

d)

White Dwarf

e)

Black Hole

27.

The phase of a massive star's life which ends after iron is created in its core.

a)

Main Sequence Star

b)

Red Giant/Supergiant

c)

Supernova

d)

White Dwarf

28.

The stage of a star's life in which hydrogen fusion is the most common energy source.

a)

Main Sequence Star

b)

Red Giant/Supergiant

c)

Supernova

d)

White Dwarf

29.

Since stars only create elements up to iron via fusion, when are the heavier elements found in the universe created?

a)

During supernova

b)

When two main sequence stars merge

c)

When a star enters the main sequence

d)

During the early formation of a protostar at 15 million ºC

30.

This theory states that the universe began as a hot infinitely dense point.

a)

Steady state theory

b)

Nebular theory

c)

Big bang theory

d)

Creation theory

31.

What is the other term for this "infinitely dense point" from the definition of Big bang theory?

a)

Singularity

b)

Singular

c)

Plural

d)

Plurarity

32.

Check all that applies: What are the product of this explosion ("Big bang")

a)

Matter

b)

Energy

c)

Volume

d)

Space

e)

Time

33.

This process helped create the the universe's second element, hydrogen.

a)

Recombination

b)

Atomic

c)

Stellar

d)

Galactic

34.
The more distant a galaxy, the faster it is
a)
moving towards us
b)
moving away from us 
c)
growing 
d)
spinning
35.
How did you calculate the distance traveled by the galaxy?
a)
Measured the distance between the galaxy and the reference point after the balloon was fully expanded
b)
Measured the distance between the galaxy and the reference point when the balloon was 1/4 the way full.
c)
Measured the distance between the galaxy and the reference point twice. Once when it was 1/4 full and again fully expanded. Then took the difference between the two
d)
Measured the distance between the galaxy and the reference point twice. Once when it was 1/4 full and again fully expanded.
36.
How did you measure the Velocity the galaxies were travelling?
a)
Divide the original distance between the galaxy and the reference point by the time it takes to fully expand the balloon.
b)
Divide the final distance (fully expanded balloon) between the galaxies and the reference point by the time it took to blow up the balloon
c)
Divide the difference in the distance traveled by the time it took to fully blow up the balloon
d)
Multiply the difference in the distance traveled by the time it took to fully blow up the balloon
37.
What is the formula for Hubble's Law?
a)
V=Ho x d
b)
Ho= V x d
c)
d= Ho x V
d)
Ho= d/V
38.
The universe is ________________.
a)
expanding
b)
staying constant
c)
shrinking
d)
moving towards other universes
39.
Edwin ____________ created a very important law after inventing a telescope that was used to see galaxies far, far away.
a)
Darwin
b)
Hubble
c)
Newton
d)
Murphy
40.
In the formula used in the lab, which variable represents the rate at which the galaxies are moving?
a)
V
b)
Ho
c)
D
41.
In the formula used in the lab, which variable represents the age of our universe?
a)
Ho
b)
V
c)
D
42.

What is responsible for the periodic cycle of day and night on Earth?

a)

The Earth's orbit around the Moon

b)

The gravitational pull of Jupiter

c)

The Earth's rotation on its axis

d)

The tilt of the Earth's axis

43.

What is the approximate angle at which the Earth's axis is tilted from the vertical?

a)

45°

b)

23.4°

c)

30°

d)

10°

44.

What is the name of the phase of the Moon where it is between the Earth and the Sun, making it unlit as seen from Earth?

a)

Half Moon

b)

New Moon

c)

Crescent Moon

d)

Full Moon

45.

What is the name of the small rocky object which orbits the Sun and lies between Mars and Jupiter?

a)

Comet

b)

Asteroid

c)

Meteoroid

d)

Satellite

46.

What is the name of the force that keeps a planet in orbit around the Sun?

a)

Electromagnetic Force

b)

Gravitational Attraction

c)

Centrifugal Force

d)

Nuclear Fusion

47.

What type of star is the Sun classified as based on its color?

a)

Yellow Dwarf

b)

Blue Giant

c)

Red Giant

d)

White Dwarf

48.

What is the remnant radiation from the early stages of the Universe known as?

a)

Ultraviolet Radiation

b)

Cosmic Microwave Background Radiation

c)

X-Rays

d)

Gamma Rays

49.

What is the name of the exploding stars that have the same peak level of brightness, making them useful in measuring distances to remote stars and galaxies?

a)

Quasars

b)

Pulsars

c)

Nebulae

d)

Supernovae

50.

What did Edwin Hubble discover in 1929 that provided evidence for the expansion of the Universe?

a)

Redshift in the light from distant galaxies

b)

Neutron Stars

c)

Cosmic Microwave Background Radiation

d)

Black Holes

51.

What is the estimated age of the Universe based on the Hubble Constant and the expansion of galaxies?

a)

5 billion years

b)

10 billion years

c)

13.7 billion years

d)

20 billion years

52.

Which is the correct order of celestial objects from largest to smallest

a)

Planet, Moon, Asteroid, Star

b)

Universe, Star, Galaxy, Moon

c)

Galaxy, Moon, Planet, Asteroid

d)

Galaxy, Star, Planet, Asteroid

53.

What is the term for a vast collection of stars

a)

Nebula

b)

Universe

c)

Galaxy

d)

Parsec

54.

Which former planet is now characterised as a dwarf planet?

a)

Neptune

b)

Pluto

c)

Jupiter

d)

Eres

55.

What is the definition of orbit?

a)

The spinning of the Earth on its axis

b)

When the lit part of the moon increases

c)

The path of a planet, moon, or other space objects travelling around a larger body

d)

Movement of a planet around the sun

56.

99.85% of the mass of the solar system is found in the object(s)

a)

Asteroid belt

b)

Sun

c)

Moons

d)

Planets

57.

What is the definition of orbit?

a)

The spinning of the Earth on its axis

b)

When the lit part of the moon increases

c)

The path of a planet, moon, or other space objects travelling around a larger body

d)

Movement of a planet around the sun

58.

How long does it take the Moon to complete one full cycle of phases?

a)

7 days

b)

14 days

c)

1 month

d)

1 year

59.

What causes the seasons on Earth?

a)

The distance of the Earth from the Sun

b)

The tilt of the Earth's axis as it orbits the Sun

c)

The gravitational pull of the Moon

d)

The speed of the Earth's rotation

60.

What is the significance of the Sun's gravitational pull on planets?

a)

It keeps them rotating on their axes

b)

It keeps them in elliptical orbits around the Sun

c)

It determines their density

d)

It creates their atmospheres

61.

How do planets and other objects in the Solar System orbit the Sun?

a)

In circular paths

b)

In elliptical paths

c)

In parabolic paths

d)

In straight lines

62.

What force governs the motion of all objects in the Solar System?

a)

Nuclear force

b)

Electromagnetic force

c)

Gravitational force

d)

Frictional force

63.

What phenomenon explains the changing appearance of the Moon's phases?

a)

The Moon's rotation on its axis

b)

The Earth's rotation

c)

The Moon's orbit around the Earth

d)

The Sun's tilt

64.

Which object in the Solar System has the largest mass?

a)

Jupiter

b)

Saturn

c)

The Sun

d)

Earth

65.

How long does it take light from the Sun to reach Earth?

a)

8 minutes

b)

24 hours

c)

1 second

d)

1 minute

66.

What is the average orbital speed of a planet with an orbital radius 𝑟 and a period 𝑇?

a)

𝑣 = 2𝑇/𝜋𝑟

b)

𝑣 = 𝜋𝑇/2𝑟

c)

𝑣 = 2𝜋𝑟/𝑇

d)

𝑣 = 𝑇/2𝜋𝑟

67.

Which model explains the difference between rocky and gaseous planets?

a)

The Ptolemaic model

b)

The accretion model

c)

The heliocentric model

d)

The geocentric model

68.

What is the name of the belt where most asteroids are found?

a)

Kuiper Belt

b)

Oort Cloud

c)

Asteroid Belt

d)

Van Allen Belt

69.

What causes the cycle of day and night on Earth?

a)

The Earth's orbit around the Sun

b)

The Earth's rotation on its tilted axis

c)

The Moon's rotation around the Earth

d)

The Earth's elliptical orbit

70.

How long does it take for the Earth to orbit the Sun once?

a)

30 days

b)

24 hours

c)

365 days

d)

7 days

71.

Which equation defines average orbital speed?

a)

𝑣 = 𝑟 ⋅ 𝑇 2𝜋

b)

𝑣 = 2𝜋𝑟/𝑇

c)

𝑣 = 𝑇/𝑟

d)

𝑣 = 𝑟/𝑇

72.

How long does it take for the Moon to orbit the Earth?

a)

One day

b)

One week

c)

One month

d)

One year

73.

Which of the following is a dwarf planet in the Solar System?

a)

Mars

b)

Venus

c)

Pluto

d)

Jupiter

74.

Planets, minor planets, and comets have what type of orbits?

a)

Circular

b)

Elliptical

c)

Parabolic

d)

Hyperbolic

75.

Which planets are rocky and small in comparison to the others in the Solar System?

a)

Jupiter, Saturn, Uranus, and Neptune

b)

Mercury, Venus, Earth, and Mars

c)

Pluto and Ceres

d)

Saturn and Jupiter

76.

What factor explains why the planets orbit around the Sun?

a)

Magnetic forces

b)

The Sun's rotation

c)

The Sun's gravitational attraction

d)

Earth's magnetic field

77.

How does the strength of a planet's gravitational field change with distance from its surface?

a)

It increases as distance increases

b)

It decreases as distance increases

c)

It remains constant regardless of distance

d)

It fluctuates with temperature

78.

Why do planets farther from the Sun have slower orbital speeds?

a)

They are smaller in size

b)

They are less dense

c)

The Sun's gravitational pull weakens with distance

d)

Their orbits are circular

79.

What is the primary cause of the Earth's seasons?

a)

The tilt of the Earth's axis

b)

The Earth's distance from the Sun

c)

The Earth's elliptical orbit

d)

The Sun's changing brightness

80.

Which of the following correctly lists the planets in order from the Sun?

a)

Mercury, Earth, Venus, Mars, Jupiter, Saturn, Uranus, Neptune

b)

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

c)

Earth, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune

d)

Mars, Earth, Mercury, Venus, Jupiter, Saturn, Uranus, Neptune

81.

What term is used to describe the Sun in the Solar System?

a)

Star

b)

Planet

c)

Asteroid

d)

Moon

82.

Why is the Sun not at the center of the elliptical orbits of planets?

a)

Because of gravitational forces from other planets

b)

Because orbits are approximately circular

c)

Because the Sun's mass is unevenly distributed

d)

Because of the nature of elliptical orbits

83.

What is the name of the belt where most asteroids are found?

a)

Kuiper Belt

b)

Oort Cloud

c)

Asteroid Belt

d)

Van Allen Belt

84.

Which model explains the difference between rocky and gaseous planets?

a)

The Ptolemaic model

b)

The accretion model

c)

The heliocentric model

d)

The geocentric model

85.

What is a characteristic of the four outer planets in the Solar System?

a)

They are small and rocky

b)

They are large and gaseous

c)

They have elliptical orbits

d)

They have solid surfaces

86.

What keeps a planet in orbit around the Sun?

a)

Magnetic fields

b)

The planet's rotation

c)

Gravitational attraction

d)

The planet's speed

87.

Which object travels faster when closer to the Sun in its orbit?

a)

Planet

b)

Comet

c)

Asteroid

d)

All of the above

88.

How does the gravitational field strength change as you move away from the Sun?

a)

It increases

b)

It decreases

c)

It remains constant

d)

It fluctuates

89.

What is the average orbital speed of a planet with an orbital radius 𝑟 and a period 𝑇?

a)

𝑣 = 2𝑇/𝜋𝑟

b)

𝑣 = 𝜋𝑇/2𝑟

c)

𝑣 = 2𝜋𝑟/𝑇

d)

𝑣 = 𝑇/2𝜋𝑟

90.

Which object in the Solar System has the largest mass?

a)

Jupiter

b)

Saturn

c)

The Sun

d)

Earth

91.

How long does it take light from the Sun to reach Earth?

a)

8 minutes

b)

24 hours

c)

1 second

d)

1 minute

92.

Which planets are known as the 'gas giants'?

a)

Mercury, Venus, Earth, Mars

b)

Jupiter, Saturn, Uranus, Neptune

c)

Earth, Mars, Jupiter, Saturn

d)

Venus, Mars, Jupiter, Saturn

93.

What happens to a comet's speed as it approaches the Sun?

a)

It increases

b)

It decreases

c)

It stays constant

d)

It reverses direction

94.

How does the distance from the Sun affect a planet's orbital speed?

a)

Planets farther from the Sun move faster

b)

Planets closer to the Sun move slower

c)

Planets closer to the Sun move faster

d)

Distance does not affect orbital speed

95.

Which of the following is not a planet in the Solar System?

a)

Neptune

b)

Saturn

c)

Ceres

d)

Venus

96.

What phenomenon explains the changing appearance of the Moon's phases?

a)

The Moon's rotation on its axis

b)

The Earth's rotation

c)

The Moon's orbit around the Earth

d)

The Sun's tilt

97.

What are the small rocky objects orbiting the Sun in the asteroid belt called?

a)

Asteroids

b)

Comets

c)

Meteoroids

d)

Dwarf planets

98.

Why are the outer planets larger and gaseous compared to the inner planets?

a)

They are closer to the Sun

b)

They formed later in the Solar System's history

c)

They formed in a region where gas was more abundant

d)

They have stronger gravitational fields

99.

What force governs the motion of all objects in the Solar System?

a)

Nuclear force

b)

Electromagnetic force

c)

Gravitational force

d)

Frictional force

100.

Which planet has the shortest orbital period around the Sun?

a)

Mercury

b)

Earth

c)

Jupiter

d)

Neptune

101.

Which celestial body has an elliptical orbit and a tail when near the Sun?

a)

Asteroid

b)

Comet

c)

Dwarf planet

d)

Moon

102.

How do planets and other objects in the Solar System orbit the Sun?

a)

In circular paths

b)

In elliptical paths

c)

In parabolic paths

d)

In straight lines

103.

What is the approximate time it takes for light to travel from the Moon to the Earth?

a)

1 second

b)

8 minutes

c)

24 hours

d)

1 minute

104.

Why do planets farther from the Sun have longer orbital periods?

a)

They have stronger gravitational fields

b)

They are larger in size

c)

They have a larger radius and less gravitational pull from the Sun.

d)

They rotate faster

105.

What happens to an object's gravitational field strength as it moves away from a planet?

a)

It increases

b)

It decreases

c)

It stays constant

d)

It fluctuates

106.

What is the significance of the Sun's gravitational pull on planets?

a)

It keeps them rotating on their axes

b)

It keeps them in elliptical orbits around the Sun

c)

It determines their density

d)

It creates their atmospheres

107.

How long does it take the Moon to complete one full cycle of phases?

a)

7 days

b)

14 days

c)

1 month

d)

1 year

108.

What causes the seasons on Earth?

a)

The distance of the Earth from the Sun

b)

The tilt of the Earth's axis as it orbits the Sun

c)

The gravitational pull of the Moon

d)

The speed of the Earth's rotation