Spec 1PH0
Revise Edexcel GCSE Physics 2.4 Circular motion, inertia and momentum with the question bank, lessons, revision guides, and flashcards.
Explain that an object moving in a circular orbit at constant speed has a changing velocity (qualitative only). • Explain that for motion in a circle there must be a resultant force known as a centripetal force that acts towards the centre of the circle.