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) 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 c) the Moon is bigger than the Earth. d) the Moon has less mass than the Earth. 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) 1 N b) 10 N c) 10 Kg d) 0.1 N 5) 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. 6) 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. 7) The planets stay in their orbits around the Sun because of: a) the gravity of the Moon. b) the gravity of the Sun. c) magnetism. d) the gravity pull of the Earth. 8) 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. d) a machine that sends TV programmes. 9) 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 10) What are the advantages of having a telescope in space? a) It can be launched using the Space Shuttle or a rocket. b) Clouds never get in the way. c) It can only be repaired by astronauts. d) It costs a lot of money to build. 11) Which of these cannot be done by a space probe in orbit? a) photographing the surface of a planet b) looking for volcanoes c) making a map to show where mountains are d) taking close-up photos of soils 12) Which of these is not an advantage of a space probe that lands on a planet? a) It can photograph most of the planet’s surface. b) It can take soil samples. c) It can carry out chemical tests on rocks. d) It can take close-up photos of rocks. 13) 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 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. 14) 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. 15) 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. 16) Why do we believe that our current model of the Solar System is correct? 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.

9J Quiz 1

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