A maritime surveillance satellite is in an orbit around the Earth.
The satellite uses ultraviolet radiation to detect oil spills and ozone levels in the atmosphere.
Ultraviolet radiation is part of the electromagnetic spectrum.
Which part of the electromagnetic spectrum has longer wavelengths than ultraviolet radiation?
Which of these statements is correct?
State one property of electromagnetic waves that is common to all electromagnetic waves.
The surveillance satellite takes 2.2 hours2.2\text{ hours}2.2 hours to orbit the Earth once.
It travels at a speed of 6.8 km/s6.8\text{ km/s}6.8 km/s.
Calculate the orbital radius of the satellite and state the unit.
The surveillance satellite is in a polar orbit, meaning it circles from pole to pole while the Earth rotates underneath it.
Suggest why this type of orbit is an advantage for tracking global shipping lanes.
28 exam-style questions on Edexcel IGCSE Physics The electromagnetic spectrum. Each one has a worked solution and a mark scheme showing where the marks go.