The Sun is at the centre of our Solar System.
The planets orbit the Sun.
Which planet is nearest to the Sun?
☐ | A | Jupiter | |
☐ | B | Mars | |
☐ | C | Mercury | |
☐ | D | Venus |
The Moon orbits the Earth.
Which of these describes the Moon?
☐ | A | an asteroid | |
☐ | B | a comet | |
☐ | C | a nebula | |
☐ | D | a natural satellite |
Any object weighs less on the Moon than it does on the Earth.
The gravitational field strength on the Moon is different from the gravitational field strength on the Earth.
Suggest two reasons why the gravitational field strength on the Moon is different from the gravitational field strength on the Earth.
The gravitational field strength on the Moon is 1.6 N/kg.
The mass of a rock on the Moon is 6.0 kg.
Calculate the weight of this rock on the Moon.
State the unit of weight.
Use the equation
weight = mass × gravitational field strength
weight of rock = ................................. unit ...................................
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