Define orbital speed using the formula 2 r π v = T, where r represents the orbit's radius and T is the orbital period, and be able to recall and apply this equation.

Quick explanation

Define orbital speed using the formula 2 r π v = T, where r represents the orbit's radius and T is the orbital period, and be able to recall and apply this equation

• This point belongs to Stars and the Universe, especially Stars and the Universe outcomes.
• You need to be able to define orbital speed using the formula 2 r π v = T, where r represents the orbit's radius and T is the orbital period, and be able to recall and apply this equation.
• The key ideas to know are Define and Calculate.
• Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.