Question 9
FThe Figure shows the orbit of a comet around the Sun. The orbit of the Earth is also shown.
Figure
a.[1]
Give the shape of the comet's orbit.
b.[1]
State the point, P, Q or R, where the comet travels fastest.
c.[2]
Explain why the comet travels fastest at this point.
d.[1]
Draw an arrow on the Figure at point R to show the direction of the gravitational force on the comet.
e.[2]
Compare the orbit of the comet with the orbit of the Earth.
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.