Module 5 part 2 circular and oscillation

Question 1

degree to rad conversion

Answer 1

multiplying by π/180

do the inverse for rad to degree

Question 1

centripetal force

Answer 1

The resultant force responsible for an object moving in circular
motion. Centripetal forces always act towards the centre of the object’s rotation

Question 2

why is linear velocity proportional to radius

Answer 2

v = 2πr/T, v = rW given that period T remains constant, velocity and radius are directly proportional, meaning linear velocity increases with radius

Question 3

centripetal acceleration

Answer 3

The acceleration of an object moving in circular motion.
Any object in circular motion must have an acceleration since the direction of the
object, and therefore the velocity of the object, is constantly changing

Question 4

radian

Answer 4

A unit of angle, where 2π equal to one complete angular rotation

Question 5

Angular Velocity

Answer 5

An object’s rate of change of angular position