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9J Quiz 1
1.
2.
Name:
An object’s weight:
10.
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
4.
7.
8.
9.
B
Clouds never get in the way.
C
It can only be repaired by astronauts.
D
It costs a lot of money to build.
the Moon is smaller than the Earth.
Which of these cannot be done by a space
probe in orbit?
B
the Moon has a bigger mass than the
A
photographing the surface of a planet
C
the Moon is bigger than the Earth.
B
looking for volcanoes
D
the Moon has less mass than the Earth.
C
making a map to show where mountains are
D
taking close-up photos of soils
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.
A
It can photograph most of the planet’s surface.
C
Only large objects like the Earth produce a force of gravity.
B
It can take soil samples.
D
Your body is attracting the Earth.
C
It can carry out chemical tests on rocks.
D
It can take close-up photos of rocks.
12.
Which of these is not an advantage of a space probe that lands on a planet?
A bag of sugar has a mass of 1 kg. What is its weight?
1N
B
10 N
C
10 Kg
D
0.1 N
13.
There have been different ideas about the Solar System in the past. Which
one of these was not suggested?
Gravity:
A
The Moon is at the centre with the planets orbiting around it.
A
gets less if two objects get closer together.
B
The planets are fixed solid spheres that move around the Earth.
B
gets bigger if two objects get further apart.
C
The planets move in circles around the Earth.
C
gets less if two objects get further apart.
D
The planets move in circles around the Sun.
D
does not depend on distance.
14.
6.
It can be launched using the Space Shuttle or a rocket.
A
A
5.
A
Gravity is less on the Moon than on the Earth because:
11.
3.
What are the advantages of having a
telescope in space?
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 acting on a spacecraft depends on how close the spacecraft is
to a planet.
The planets stay in their orbits around the Sun because of:
15.
Ptolemy’s model of the Solar System had
the Earth at 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.
Which statement best describes our current ideas about the Solar System?
A
the gravity of the Moon.
C
magnetism.
A
The planets all move in circular orbits around the Earth.
B
the gravity of the Sun.
D
the gravity pull of 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.
An artifi cial satellite is:
A
anything that orbits a planet or moon.
B
anything that orbits the Sun.
C
something made by humans that orbits the Earth or another planet
or moon.
A
We can see the elliptical orbits.
D
a machine that sends TV programmes.
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.
Which of these is not a method of studying space that can be used from the
Earth?
A
collecting rock samples
B
watching the sky to see if anything new appears
C
using a telescope to make planets and moons look bigger
D
using a telescope to observe the stars
16.
Why do we believe that our current model of
the Solar System is correct?
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