Chapter 6: Circular Motion

Question 1

What is angular displacement?

Answer 1

The angle of rotation of a body about an axis in a specific direction from a reference point

Question 2

What is angular velocity?

Answer 2

The rate of change of angular displacement of a body with respect to time, swept out by the radius

Question 3

What is the relationship between linear velocity v and angular velocity ω?

Answer 3

v = rω

Question 4

State the formula for centripetal acceleration

Answer 4

a = v²/r
= rω²

Question 5

State the formula for centripetal force

Answer 5

F = ma
= (mv²) / r
= mrω²

Question 6

linear velocity

Answer 6

It is the rate of change of linear displacement

Question 7

1 radian/The radian

Answer 7

The angular displacement subtended if the arc length is equal to the radius

Question 8

Linear acceleration

Answer 8

The rate of change of linear velocity wrt time