AQA GCSE Physics Orbital motion, natural and artificial satellites 

Resources

The following resources will help you answer these questions

  1. Page 73 of the specification is your best resource to help you answer these questions. – https://filestore.aqa.org.uk/resources/physics/specifications/AQA-8463-SP-2016.PDF
  2. The bbc bitesize website has good coverage of space. https://www.bbc.co.uk/bitesize/topics/zsbyh39

Questions

  1. What is the difference between a natural and an artificial satellite? 
  2. How are they able to remain in a circular orbit? 
  3. What are the similarities and differences between planets, their moons and artificial satellites? 
  4. How can an object that is moving in a circular orbit be at a constant speed but changing velocity? Hint → Which one is a vector? 
  5. Why must the radius of an orbiting object change if its speed changes? Use the term ‘force of gravity in your answer. 

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