Module 5: Newtonian world and astrophysics

5.2 Circular motion

5.2.1 Kinematics of circular motion	(a) the radian as a measure of angle	Multiple Choice
	(b) period and frequency of an object in circular motion
	(c) angular velocity ω, ω =2π/T or ω = 2πf
5.2.2 Centripetal force	(a) a constant net force perpendicular to the velocity of an object causes it to travel in a circular path
	(b) constant speed in a circle; v = ωr
	(c) centripetal acceleration; a = v²/r a = ω²r
	(d) (i) centripetal force; F = mv²/r F = m ω²r
	(d) (ii) techniques and procedures used to investigate circular motion using a whirling bung.