Question 21
FThe Figure shows the Sun and the eight planets of our Solar System. The Figure is not drawn to scale.
Figure
a.[3]
Name the planets labelled P, Q and R.
b.[1]
Mars has two moons.
State what is meant by a natural satellite.
c.[1]
Pluto was once called the ninth planet.
Give the type of object that Pluto is now classed as.
d.[1]
Most asteroids orbit the Sun in a belt between two planets.
Give the names of these two planets.
7.1 The Solar System and gravity Questions
80 exam-style questions on Edexcel GCSE Physics 7.1 The Solar System and gravity, covering 7.1.1 Weight and g on different bodies in space, 7.1.2 The Solar System, 7.1.3 Changing ideas about the Solar System, 7.1.4 Orbits of moons, planets, comets and satellites, and 7.1.5 Gravity and orbital motion. Each one has a worked solution and a mark scheme showing where the marks go.