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Quick Quiz
On your answer sheet, write in or circle the correct letter for each question.
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1 An object’s weight:
A is caused because it is pulled towards
the Earth.
B is caused by the Earth’s magnetic field.
C is caused by the air pushing down on it.
D stays the same, even if its mass
changes.
2 The direction ‘down’ is:
A the same everywhere.
B at right angles to the ground.
C towards the centre of the Earth.
D different under water.
3 Which statement is not true?
A The Earth attracts objects because it has
a large mass.
B You are attracting this Quiz paper with
a small force of gravity.
C Only large objects like the Earth
produce a force of gravity.
D Your body is attracting the Earth.
4 A bag of sugar has a mass of 1 kg. What is
its weight?
A 1N
B 10 N
C 10 kg
D 0.1 N
9Jb
1 Gravity is less on the Moon than on the
Earth because:
A the Moon is smaller than the Earth.
B the Moon has a bigger mass than the
Earth.
C the Moon is bigger than the Earth.
D the Moon has less mass than the Earth.
2 On Mars, the strength of gravity is 9 N/kg.
If your mass is 50 kg, how much would
you weigh on Mars?
A 450 N
B 90 N
C 50 N
D 45 N
3 Gravity:
A gets less if two objects get closer
together.
B gets bigger if two objects get further
apart.
C gets less if two objects get further apart.
D does not depend on distance.
4 Which statement is true?
A Gravity always pulls a spacecraft
towards the nearest planet.
B There is no gravity in space.
C Gravity is the same at all times during a
space journey.
D Gravity depends on how close a
spacecraft is to a planet.
9Jc
1 There have been different ideas about the
Solar System in the past. Which one of
these was not suggested?
A The Moon is at the centre with the
planets orbiting around it.
B The planets are fixed to solid spheres
that move around the Earth.
C The planets move in circles around the
Earth.
D The planets move in circles around the
Sun.
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Quick Quiz (continued)
2 Ptolemy’s model of the Solar System had
the Earth in the centre with the Sun and
planets moving in circular orbits around it.
Our modern idea about the Solar System
is different because we think:
A that Mars moves around the Earth.
B the Sun is moving around the Earth.
C the Earth moves around the Moon.
D the Sun is at the centre of the Solar
System.
3 Which statement best describes our
current ideas about the Solar System?
A The planets all move in circular orbits
around the Earth.
B The planets all move in circular orbits
around the Sun.
C The planets all move in elliptical orbits
around the Sun.
D The planets all move in elliptical orbits
around the Earth.
3 Artificial satellites can be used for:
A sending telephone calls.
B taking photos of the stars and other
galaxies.
C helping people to find where they are
on the Earth.
D all of the above.
4 A TV satellite would be put into:
A a geostationary orbit, so it covers all
parts of the Earth.
B a polar orbit, so it covers all parts of the
Earth.
C a geostationary orbit, so it stays above
the same place on the Earth.
D a polar orbit, so it stays above the same
place on the Earth.
4 Why do we believe our current model of
the Solar System?
A We can see the elliptical orbits.
B It can accurately predict the movements
of the planets.
C It agrees with religious ideas.
D We have sent people to visit the Moon.
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1 The planets stay in their orbits around the
Sun because of:
A the gravity pull from the Moon.
B the gravity pull from the Sun.
C magnetism.
D the gravity pull from the Earth.
2 A satellite is:
A anything that orbits a planet.
B anything that orbits the Sun.
C something man-made that orbits the
Earth.
D a machine that sends TV programmes.
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© Pearson Education Limited 2002
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