Lesson Circular motion lessonWorksheet Circular motion worksheetLab Circular motion labTest Circular motion testQuiz Circular motion quizQuick answer: Circular motion at constant speed involves a constant angular velocity ω = 2π/T and a centripetal acceleration a = v²/r = ω²r directed towards the centre. This Physics 11-12 quiz checks circular motion with 10 multiple-choice questions and instant feedback; every answer comes with a short explanation.
The tests book with mark schemes · Physics grades 11-12
Every chapter in one PDF school book of 93 pages, to print or keep on your tablet.
See the book Ten multiple-choice questions on angular velocity, centripetal acceleration and force, bends and vertical circles. Choose the best option, then read the explanation, which names the mistake behind each wrong option.
Level: Physics grades 11-12 (A Level · IB · Class 11-12) · Curriculum: A Level 3.6
A wheel turns at 60 rpm. What is its angular velocity? What is the direction of the acceleration of an object moving at constant speed in a circle? The speed of a car going round a roundabout is doubled. By what factor must the centripetal force increase? Which expression gives the centripetal acceleration? A stone is whirled in a horizontal circle on a string. Which force provides the centripetal force? What does a frictionless banked bend need for the design speed? At the top of a vertical circle, a ball on a string just stays on the circle. What is the tension there? A point on a rotating disc is moved from r to 2r from the axis. What happens to its linear speed at fixed ω? Why can a car on a flat bend skid when it speeds up? What does a centripetal force do to the speed of an object moving in a circle? Angular velocity in terms of period? — ω = 2π/T Linear speed from angular velocity? — v = r ω Centripetal acceleration formulae? — a = v²/r = ω²r Centripetal force formula? — F = m v²/r = m ω² r Direction of centripetal acceleration? — Towards the centre of the circle How many radians in a full turn? — 2π radians Maximum speed on a flat bend? — v = √(μ g r) Banking angle with no friction? — tan θ = v²/(r g) Minimum speed at top of vertical circle? — v = √(g r) Work done by a centripetal force? — Zero; force is perpendicular to velocity Keep going with Lina
The tests book with mark schemes · Physics grades 11-12
Every chapter in one PDF school book of 93 pages, to print or keep on your tablet.
See the book 
