8561RB AC Science Year 6 revised edition LR watermark

Earth and space sciences Lesson 2.2
What is the importance of gravity? – 2
1. In your own words, explain what gravity is.
2. True or false:
(a) Mass is the amount of matter an object contains. True False
(b) Mass is measured in centimetres or metres. True False
(c) Mass can change. True False
(d) Objects with mass exert a force of gravity. True False
(e) Objects with a large mass exert a large force of gravity. True False
(f) The further apart objects are, the less the force of gravity. True False
(g) Objects with a large mass have a small weight. True False
3. Name the object:
(a) in the solar system with the greatest mass.
(b) kept in Earth’s orbit by gravity.
(c) affected by the Moon’s gravity.
4. Complete the sentences:
(a) The planets, satellites, asteroids, comets and meteoroids are all pulled into
orbits by the Sun’s strong gravitational force.
(b) The planets which travel faster around the Sun and are more affected by
its gravity, are those which are (closer/further away) .
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(c) Weight (can/cannot)
(d) Due to gravity, a person will weigh (more/less)
on Earth.
(e) Due to gravity, a person will weigh (more/less)
on Earth.
change if gravity changes.
on the Moon than
on Jupiter than
(f) Two well-known scientists who helped discover information about gravity are
and .
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