Microwaves are electromagnetic waves used to transmit telemetry data from a lunar landing module back to a ground station on Earth. A microwave signal transmitted from the lunar surface takes 1.28 s1.28\text{ s}1.28 s to reach the Earth station.
The speed of electromagnetic waves is 3.0×108 m/s3.0 \times 10^8\text{ m/s}3.0×108 m/s.
Calculate the distance between the Earth station and the lunar landing module. Use the equation:
distance=speed×time \text{distance} = \text{speed} \times \text{time} distance=speed×time29 exam-style questions on AQA GCSE Physics 6.2 Electromagnetic waves, covering 6.2.1 Types of electromagnetic waves, 6.2.2 Properties of electromagnetic waves 1, 6.2.3 Properties of electromagnetic waves 2, 6.2.4 Uses and applications of electromagnetic waves, 6.2.5 Lenses, and 6.2.6 Visible light. Each one has a worked solution and a mark scheme showing where the marks go.