GCSE Physics – Orbital speed

Last updated: 21/03/2021
Edexcel International GCSE Science – Combined science foundation Astrophysics GCSE Physics – Orbital speed

Learning Objectives

-I can use the equation linking orbital speed, orbital radius and time period 

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  3. Answered

  1. What does gravity do?

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  2. What is gravity?

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  3. What can gravity change?

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  4. What can gravity not change?

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  5. What must change for an orbit if speed changes?

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  6. What is the definition of speed?

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  7. What is the definition of velocity?

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  8. What are the units for speed?

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  9. What are the units for velocity?

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  10. Describe the direction of an object that is moving in a circle.

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  11. Describe the speed of an object that is moving in a circle.

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  12. Describe the velocity of an object that is moving in a circle.

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  13. What does gravity help to orbit?

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  14. What does speed include?

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  15. What does a change in direction cause?

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  16. What is the equation for orbital speed?

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  17. What are the units for orbital speed?

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  18. What are the units for orbital radius?

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  19. What are the units for time period?

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  20. What does ‘v’ stand for in the equation for orbital speed?

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  21. What does ‘r’ stand for in the equation for orbital speed?

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  22. What does ‘T’ stand for in the equation for orbital speed?

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