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WorksheetsSPACE PHYSICS
Total questions: 108
Worksheet time: 1hrs 10mins
What is the final stage of a low mass star?
White Dwarf
Black Hole
Red Giant
Neutron Star
What is the final stage of a high mass star?
White Dwarf
Black Hole
Red Giant
Neutron Star
What is the final stage of a very high mass star?
White Dwarf
Black Hole
Red Giant
Neutron Star
Which mass of star will have the shortest life span?
Low Mass Star
Medium Mass Star
High Mass Star
Very High Mass Star
Which stage of life is the sun currently in?
White Dwarf
Planetary Nebula
Main Sequence
Red Giant
What is the name of the cosmic cloud of dust and gas that is the first stage in the birth of a star?
Protostar
Spiral Galaxy
Quasar
Stellar Nebula
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.
Protostar
White Dwarf
Brown Dwarf
Main Sequence
In a low-medium mass star, at the end of the red giant stage, the red giant's atmosphere expands outward to create a...
White Dwarf
Planetary Nebula
Supernova
Neutron Star
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.
White Dwarf
Planetary Nebula
Supernova
Neutron Star
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 __________
White Dwarf
Planetary Nebula
Supernova
Neutron Star
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.
White Dwarf
Neutron Star
Stellar Nebula
Black Hole
Which elements are found in a main sequence star?
Hydrogen (H)
Helium (He)
Carbon (C)
Oxygen (O)
Which is one of the heaviest element found in a red giant star?
Nitrogen (N)
Iron (Fe)
Sulfur (S)
Magnesium (Mg)
Distance to stars are measured in light years because
kilometers are to big
the distance between stars is so large
light speed is easy to measure
light years is a measure of time not distance
The two forces that balance each other inside a star are
gravitational and thermal expansion
electromagnetic and gravitational
unstoppable and paperclip
cosmic and nuclear fusion
The collection of cosmic dust clouds in which stars emerge from.
Stellar Nebula/Planetary Nebula
Red Giant/Supergiant
Neutron Star
White Dwarf
Black Hole
The death of an average to low mass star results in which of these? (more than one answer is correct)
Stellar Nebula/Planetary Nebula
Red Giant/Supergiant
Neutron Star
White Dwarf
Black Hole
The death of a high mass star can be which of these? (more than one answer is correct)
Stellar Nebula/Planetary Nebula
Red Giant/Supergiant
Neutron Star
White Dwarf
Black Hole
The phase of a star's life when it starts depleting its hydrogen and begins periods of expansion.
Stellar Nebula/Planetary Nebula
Red Giant/Supergiant
Neutron Star
White Dwarf
Black Hole
The result of a massive star's death involving all mass collapsing to a singularity is which of these?
Stellar Nebula/Planetary Nebula
Red Giant/Supergiant
Neutron Star
White Dwarf
Black Hole
The result of a massive star's death involving compression strong enough to collapse atoms until protons and electrons combine to form neutrons.
Stellar Nebula/Planetary Nebula
Red Giant/Supergiant
Neutron Star
White Dwarf
Black Hole
The result of a massive star's death involving a small body of matter spinning at unimaginable speeds which generates extreme magnetic fields.
Stellar Nebula/Planetary Nebula
Red Giant/Supergiant
Neutron Star
White Dwarf
Black Hole
The phase of a star's life involving the burning of elements heavier than hydrogen is which of these?
Stellar Nebula/Planetary Nebula
Red Giant/Supergiant
Neutron Star
White Dwarf
Black Hole
The phase of a massive star's life which ends after iron is created in its core.
Main Sequence Star
Red Giant/Supergiant
Supernova
White Dwarf
The stage of a star's life in which hydrogen fusion is the most common energy source.
Main Sequence Star
Red Giant/Supergiant
Supernova
White Dwarf
Since stars only create elements up to iron via fusion, when are the heavier elements found in the universe created?
During supernova
When two main sequence stars merge
When a star enters the main sequence
During the early formation of a protostar at 15 million ºC
This theory states that the universe began as a hot infinitely dense point.
Steady state theory
Nebular theory
Big bang theory
Creation theory
What is the other term for this "infinitely dense point" from the definition of Big bang theory?
Singularity
Singular
Plural
Plurarity
Check all that applies: What are the product of this explosion ("Big bang")
Matter
Energy
Volume
Space
Time
This process helped create the the universe's second element, hydrogen.
Recombination
Atomic
Stellar
Galactic
What is responsible for the periodic cycle of day and night on Earth?
The Earth's orbit around the Moon
The gravitational pull of Jupiter
The Earth's rotation on its axis
The tilt of the Earth's axis
What is the approximate angle at which the Earth's axis is tilted from the vertical?
45°
23.4°
30°
10°
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?
Half Moon
New Moon
Crescent Moon
Full Moon
What is the name of the small rocky object which orbits the Sun and lies between Mars and Jupiter?
Comet
Asteroid
Meteoroid
Satellite
What is the name of the force that keeps a planet in orbit around the Sun?
Electromagnetic Force
Gravitational Attraction
Centrifugal Force
Nuclear Fusion
What type of star is the Sun classified as based on its color?
Yellow Dwarf
Blue Giant
Red Giant
White Dwarf
What is the remnant radiation from the early stages of the Universe known as?
Ultraviolet Radiation
Cosmic Microwave Background Radiation
X-Rays
Gamma Rays
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?
Quasars
Pulsars
Nebulae
Supernovae
What did Edwin Hubble discover in 1929 that provided evidence for the expansion of the Universe?
Redshift in the light from distant galaxies
Neutron Stars
Cosmic Microwave Background Radiation
Black Holes
What is the estimated age of the Universe based on the Hubble Constant and the expansion of galaxies?
5 billion years
10 billion years
13.7 billion years
20 billion years
Which is the correct order of celestial objects from largest to smallest
Planet, Moon, Asteroid, Star
Universe, Star, Galaxy, Moon
Galaxy, Moon, Planet, Asteroid
Galaxy, Star, Planet, Asteroid
What is the term for a vast collection of stars
Nebula
Universe
Galaxy
Parsec
Which former planet is now characterised as a dwarf planet?
Neptune
Pluto
Jupiter
Eres
What is the definition of orbit?
The spinning of the Earth on its axis
When the lit part of the moon increases
The path of a planet, moon, or other space objects travelling around a larger body
Movement of a planet around the sun
99.85% of the mass of the solar system is found in the object(s)
Asteroid belt
Sun
Moons
Planets
What is the definition of orbit?
The spinning of the Earth on its axis
When the lit part of the moon increases
The path of a planet, moon, or other space objects travelling around a larger body
Movement of a planet around the sun
How long does it take the Moon to complete one full cycle of phases?
7 days
14 days
1 month
1 year
What causes the seasons on Earth?
The distance of the Earth from the Sun
The tilt of the Earth's axis as it orbits the Sun
The gravitational pull of the Moon
The speed of the Earth's rotation
What is the significance of the Sun's gravitational pull on planets?
It keeps them rotating on their axes
It keeps them in elliptical orbits around the Sun
It determines their density
It creates their atmospheres
How do planets and other objects in the Solar System orbit the Sun?
In circular paths
In elliptical paths
In parabolic paths
In straight lines
What force governs the motion of all objects in the Solar System?
Nuclear force
Electromagnetic force
Gravitational force
Frictional force
What phenomenon explains the changing appearance of the Moon's phases?
The Moon's rotation on its axis
The Earth's rotation
The Moon's orbit around the Earth
The Sun's tilt
Which object in the Solar System has the largest mass?
Jupiter
Saturn
The Sun
Earth
How long does it take light from the Sun to reach Earth?
8 minutes
24 hours
1 second
1 minute
What is the average orbital speed of a planet with an orbital radius 𝑟 and a period 𝑇?
𝑣 = 2𝑇/𝜋𝑟
𝑣 = 𝜋𝑇/2𝑟
𝑣 = 2𝜋𝑟/𝑇
𝑣 = 𝑇/2𝜋𝑟
Which model explains the difference between rocky and gaseous planets?
The Ptolemaic model
The accretion model
The heliocentric model
The geocentric model
What is the name of the belt where most asteroids are found?
Kuiper Belt
Oort Cloud
Asteroid Belt
Van Allen Belt
What causes the cycle of day and night on Earth?
The Earth's orbit around the Sun
The Earth's rotation on its tilted axis
The Moon's rotation around the Earth
The Earth's elliptical orbit
How long does it take for the Earth to orbit the Sun once?
30 days
24 hours
365 days
7 days
Which equation defines average orbital speed?
𝑣 = 𝑟 ⋅ 𝑇 2𝜋
𝑣 = 2𝜋𝑟/𝑇
𝑣 = 𝑇/𝑟
𝑣 = 𝑟/𝑇
How long does it take for the Moon to orbit the Earth?
One day
One week
One month
One year
Which of the following is a dwarf planet in the Solar System?
Mars
Venus
Pluto
Jupiter
Planets, minor planets, and comets have what type of orbits?
Circular
Elliptical
Parabolic
Hyperbolic
Which planets are rocky and small in comparison to the others in the Solar System?
Jupiter, Saturn, Uranus, and Neptune
Mercury, Venus, Earth, and Mars
Pluto and Ceres
Saturn and Jupiter
What factor explains why the planets orbit around the Sun?
Magnetic forces
The Sun's rotation
The Sun's gravitational attraction
Earth's magnetic field
How does the strength of a planet's gravitational field change with distance from its surface?
It increases as distance increases
It decreases as distance increases
It remains constant regardless of distance
It fluctuates with temperature
Why do planets farther from the Sun have slower orbital speeds?
They are smaller in size
They are less dense
The Sun's gravitational pull weakens with distance
Their orbits are circular
What is the primary cause of the Earth's seasons?
The tilt of the Earth's axis
The Earth's distance from the Sun
The Earth's elliptical orbit
The Sun's changing brightness
Which of the following correctly lists the planets in order from the Sun?
Mercury, Earth, Venus, Mars, Jupiter, Saturn, Uranus, Neptune
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Earth, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune
Mars, Earth, Mercury, Venus, Jupiter, Saturn, Uranus, Neptune
What term is used to describe the Sun in the Solar System?
Star
Planet
Asteroid
Moon
Why is the Sun not at the center of the elliptical orbits of planets?
Because of gravitational forces from other planets
Because orbits are approximately circular
Because the Sun's mass is unevenly distributed
Because of the nature of elliptical orbits
What is the name of the belt where most asteroids are found?
Kuiper Belt
Oort Cloud
Asteroid Belt
Van Allen Belt
Which model explains the difference between rocky and gaseous planets?
The Ptolemaic model
The accretion model
The heliocentric model
The geocentric model
What is a characteristic of the four outer planets in the Solar System?
They are small and rocky
They are large and gaseous
They have elliptical orbits
They have solid surfaces
What keeps a planet in orbit around the Sun?
Magnetic fields
The planet's rotation
Gravitational attraction
The planet's speed
Which object travels faster when closer to the Sun in its orbit?
Planet
Comet
Asteroid
All of the above
How does the gravitational field strength change as you move away from the Sun?
It increases
It decreases
It remains constant
It fluctuates
What is the average orbital speed of a planet with an orbital radius 𝑟 and a period 𝑇?
𝑣 = 2𝑇/𝜋𝑟
𝑣 = 𝜋𝑇/2𝑟
𝑣 = 2𝜋𝑟/𝑇
𝑣 = 𝑇/2𝜋𝑟
Which object in the Solar System has the largest mass?
Jupiter
Saturn
The Sun
Earth
How long does it take light from the Sun to reach Earth?
8 minutes
24 hours
1 second
1 minute
Which planets are known as the 'gas giants'?
Mercury, Venus, Earth, Mars
Jupiter, Saturn, Uranus, Neptune
Earth, Mars, Jupiter, Saturn
Venus, Mars, Jupiter, Saturn
What happens to a comet's speed as it approaches the Sun?
It increases
It decreases
It stays constant
It reverses direction
How does the distance from the Sun affect a planet's orbital speed?
Planets farther from the Sun move faster
Planets closer to the Sun move slower
Planets closer to the Sun move faster
Distance does not affect orbital speed
Which of the following is not a planet in the Solar System?
Neptune
Saturn
Ceres
Venus
What phenomenon explains the changing appearance of the Moon's phases?
The Moon's rotation on its axis
The Earth's rotation
The Moon's orbit around the Earth
The Sun's tilt
What are the small rocky objects orbiting the Sun in the asteroid belt called?
Asteroids
Comets
Meteoroids
Dwarf planets
Why are the outer planets larger and gaseous compared to the inner planets?
They are closer to the Sun
They formed later in the Solar System's history
They formed in a region where gas was more abundant
They have stronger gravitational fields
What force governs the motion of all objects in the Solar System?
Nuclear force
Electromagnetic force
Gravitational force
Frictional force
Which planet has the shortest orbital period around the Sun?
Mercury
Earth
Jupiter
Neptune
Which celestial body has an elliptical orbit and a tail when near the Sun?
Asteroid
Comet
Dwarf planet
Moon
How do planets and other objects in the Solar System orbit the Sun?
In circular paths
In elliptical paths
In parabolic paths
In straight lines
What is the approximate time it takes for light to travel from the Moon to the Earth?
1 second
8 minutes
24 hours
1 minute
Why do planets farther from the Sun have longer orbital periods?
They have stronger gravitational fields
They are larger in size
They have a larger radius and less gravitational pull from the Sun.
They rotate faster
What happens to an object's gravitational field strength as it moves away from a planet?
It increases
It decreases
It stays constant
It fluctuates
What is the significance of the Sun's gravitational pull on planets?
It keeps them rotating on their axes
It keeps them in elliptical orbits around the Sun
It determines their density
It creates their atmospheres
How long does it take the Moon to complete one full cycle of phases?
7 days
14 days
1 month
1 year
What causes the seasons on Earth?
The distance of the Earth from the Sun
The tilt of the Earth's axis as it orbits the Sun
The gravitational pull of the Moon
The speed of the Earth's rotation
