Phys 4.3

Question 1

Angle at the Centre of a Circle / Angular Displacement

Answer 1

The ratio of the arc length to the radius of the circle.

Question 2

Angular Velocity

Answer 2

The rate of change of angular displacement

Question 3

Period

Answer 3

The time taken for 1 revolution.

Question 4

Centripetal Force

Answer 4

The force on an object that produces circular motion. Always acts towards the centre of rotation.