Two-panel Studio Render comparing circular and elliptical orbits. Left: satellite on cyan circular orbit around Earth, amber gravity arrow inward, cyan velocity arrow tangential — constant speed, constant altitude. Right: satellite on amber elliptical orbit, shown slow at apogee and fast at perigee — faster when closer, slower when far.

This diagram covers Circular vs Elliptical Orbits within Orbits for GCSE Physics. Revise Orbits in Space Physics for GCSE Physics with 14 exam-style questions and 10 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 3 of 8 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Practice questions for Orbits

What is a protostar?

A. A cloud of gas and dust in space
B. A star that is forming from a collapsing cloud of gas and dust
C. A star that has used up all its hydrogen
D. A star that has exploded as a supernova

1 markfoundation

Explain why a main sequence star remains stable (in equilibrium) for billions of years.

2 marksstandard

Quick recall flashcards

What is Low Earth Orbit (LEO)?

Orbit at 200-2000 km altitude with ~90 minute orbital period. Used for ISS, imaging, and Earth observation

What is a polar orbit used for?

Mapping - the satellite orbits at ~800 km altitude covering the whole Earth as the planet rotates beneath it

What Keeps Objects in Orbit?

Orbital Speed and Radius

Circular vs Elliptical Orbits

Practice questions for Orbits

Quick recall flashcards

14 questions on Orbits: practise free