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WorksheetsIGCSE Space Physics
Total questions: 35
Worksheet time: 35mins
Which of the following is true of the Sun?
The Sun is the closest star to Earth.
The Sun is the smallest star in the Milky Way
The Sun is the largest planet in our Solar System.
The Sun is an example of a galaxy that gives off light energy.
What causes the day/night cycle?
Earth turning on its axis.
Earth revolving around the Sun.
The Sun revolving around the Earth.
The Moon revolving around the Earth.
When the Moon is directly between the Sun and the Earth, what phase would the Moon be in?
Full Moon
New Moon
Half Moon
Waxing Crescent
What evidence from the text supports why the Moon seems to change shape from night to night?
The Moon shines on Earth differently depending on the weather.
As the Moon travels around Earth, its distance from Earth changes.
The moonlight hits Earth at different places depending on the time of day.
As the Moon travels around Earth, sunlight hits it from different directions.
Which of the following stars has the highest surface temperature?
White
Yellow
Red
Bluish-white
Which of the following forms a star?
Nebulae
Supernova
White dwarf
Black hole
Which of the following characteristics can be used to classify stars?
I Age
II Shape
III Brightness
IV Colour
I and II
III and IV
II and III
I and IV
The following information shows the formation of a star.
P- The gas ball starts to shine and a new star is born.
Q- A lot of heat energy and light energy are released from the core.
R- The gases and dust particles in nebulae are pulled by a strong gravitational force until it becomes compact core.
S- The core becomes hotter causing a nuclear reaction to occur when the temperature and pressure are too high.
P,Q,R,S
P,Q,S,R
R,Q,S,P
R,S,Q,P
Diagram shows a galaxy. What is the type of this galaxy?
Elliptical
Spiral
Milky Way
Irregular
Why is the temperature of Venus higher than Mercury?
The density of Venus is higher
The gravitational force on Venus is higher
Venus does not have clouds to absorb and reflect heat
The atmospheric layer of Venus contains 96% of carbon dioxide gas that causes greenhouse effect
Diagram shows the planets in solar system. Which of the following are terrestrial planets?
Mercury, Saturn, Earth and Mars
Mercury, Venus, Earth and Mars
Mercury, Venus, Earth and Neptune
Jupiter, Saturn, Uranus and Neptune
Which of the following are gas planets?
Mercury, Venus, Earth and Mars
Jupiter, Saturn, Uranus and Earth
Mercury, Venus, Earth and Neptune
Jupiter, Saturn, Uranus and Neptune
Which of these objects is a dwarf planet?
Moon
Mercury
Pluto
Aris
What shape are the orbits of comets?
Rectangular
Irregular
Elliptical
Circle
Which of the following is a natural satellite?
International space station
Hubble space telescope
Communication satellite
Moon
Which body was the first stage in the formation of the Sun?
Protostar
Main sequence star
Supernova
Nebula
What is a comet?
An object that orbits the Earth, made from rocky material, dust and ice
An object that orbits the Sun, made from rocky material and metals
An object that orbits the Sun, made from rocky material, dust and ice
An object that orbits the solar system, made from rocky material and metals
What happens to the gravitational force of attraction between two objects if the distance between them increases?
Force of attraction increases
Force of attraction decreases
Force of attraction remains constant
Force of attraction cease to exist
What happens to the speed and velocity of a planet in a circular orbit?
velocity changes and the speed changes
velocity changes but the speed remains constant
speed changes but the velocity remains constant
speed increases but the velocity remains constant
What is a nebula?
A cloud of dust and gas
A collection of billions of stars
An early solar system, with a protostar, planets and moons
A core with abundant of hydrogen
Which two things balance and keep a main sequence star in equilibrium?
Gravity and friction
Gravity and air resistance
Gravity and radiation pressure
Gravity and electrostatic attraction
Where do elements of heavier than iron form?
In nuclear fusion in main sequence stars
In supernova
In the big bang
In nuclear fusion in planetary nebula
What will the Sun in the next stage of its life?
A red giant
A red supergiant
A black hole
A neutron star
Which type of star has supernova explosions?
Stars similar in size to our Sun
Stars much bigger than our Sun
All stars go through a supernova explosion
Medium stars
What happens when a white dwarf cools completely?
It stops emitting light and becomes a dark dwarf
It stops emitting light and becomes a neutron star
It stops emitting light and becomes a black hole
It stops emitting light and becomes a planetary nebula
What is red-shift?
The time when a star moves from the main sequence to be a red giant
The red filter used by astronomers to analyse the light from distant stars
The increase in wavelength of light from a distant galaxy moving away from Earth
The increase in wavelength of light from a distant galaxy moving away from Sun
Which of the following suggests that the solar system is made from the debris of old supernova explosions?
The Sun is a relatively small mass star
There is gold in the ground on Earth
The Sun is mostly hydrogen
There is hydrogen on Earth
Most distant galaxies show more red-shift. Which major theory does this support?
Theory of stellar evolution
The Big Bang theory
Fermi paradox
Kardashev scale
What is the basic idea of the Big Bang theory?
The universe expanded from a single tiny point, starting about 13.8 billion years ago
The universe will end in a giant dark energy explosion
The solar system began when a protostar started nuclear fusion reactions
Continous creation of matter throughout the universe
Which of the following is not evidence of the Big Bang theory
Cosmic microwave background radiation
Doppler red-shift of light observed from distant stars and galaxies
Galaxies are moving away from Earth
Models of Accretion Theory
The orbital period of a Moon around the Earth is about 30 days. The average radius of its orbit is 380000km. Calculate the orbital speed of the Moon in m/s.
920m/s
9200m/s
92 m/s
92000m/s
The Sun is 150 million km away from the Earth. Calculate the time, in minutes, it takes light to travel from the Sun to us.
7.2 minutes
8.3 minutes
9.4 minutes
6.3 minutes
A star is a distance of 3.6 x 1019 m from us. Calculate the distance in light years.
3689 light years
3789 light years
368.9 light years
378.9 light years
Estimate the Hubble constant given v= 11000 km/s and d= 5.0 x 1024 m.
2.2 x 1018
2.2 x 10-18
2.2 x 1021
2.2 x 10-21
Estimate the age of the Universe in years.
1.4 x1010
4.45 x 1017
4.45 x 107
1.4 x107
