Why does a satellite in circular orbit accelerate if its speed is constant?
Its altitude is constantly changing (distance is a vector).
Its mass is constantly changing (momentum is a vector).
Its speed is constantly changing (velocity is a scalar).
Its direction is constantly changing (velocity is a vector).
Flashcards for Edexcel A Level Physics Orbits and satellites, covering the key terms, definitions and equations you need to recall for Paper 1, Paper 2 and Paper 3. 22 cards, matched to the Edexcel A Level Physics (9PH0) specification.