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7.1 The Solar System and gravity

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Question 34
H

A satellite has a circular orbit 600 km above the Earth's surface. The Earth's radius is 6400 km. The satellite takes 100 min to complete one orbit.

Use circumference=2πr\text{circumference}=2\pi rcircumference=2πr.

What is the satellite's speed, to two significant figures?

[1]
A

0.63 km/s0.63\ \mathrm{km/s}0.63 km/s

B

6.7 km/s6.7\ \mathrm{km/s}6.7 km/s

C

7.3 km/s7.3\ \mathrm{km/s}7.3 km/s

D

440 km/s440\ \mathrm{km/s}440 km/s

Markscheme

7.1 The Solar System and gravity Questions

  1. GCSE
  2. /Physics
  3. /7.1 The Solar System and gravity

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.

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