Angular motion

Question 1

Angular displacement definition?

Answer 1

Smallest change in angle between starting point and finishing point

Question 2

Angular velocity definition?

Answer 2

Rotational speed of an object around its axis

Question 3

Angular acceleration definition?

Answer 3

Rate of change of angular velocity

Question 4

Angular momentum definition?

Answer 4

Quantity of rotation a body possess

Question 5

How do you work out angular velocity?

Answer 5

Angular displacement / time taken

Question 6

How do you work out angular acceleration?

Answer 6

Change in velocity / time taken

Question 7

How do you work out angular momentum?

Answer 7

Moment of inertia x angular velocity

Question 8

What does angular momentum depend on?

Answer 8

Moment of inertia and angular velocity

Question 9

What are angular velocity and moment of inertia?

Answer 9

Inversely proportional

Question 10

What is moment of inertia?

Answer 10

Resistance of a body to angular motion

Question 11

What is moment of inertia dependent on?

Answer 11

Mass and distribution of mass around the axis

Question 12

What is torque?

Answer 12

A rotational force

Question 13

What is Newton’s first law applied to angular motion?

Answer 13

A rotation body will continue in its state of angular motion unless a force (torque) is exerted upon it

Question 14

What is newtons 2nd law applied to angular motion?

Answer 14

Rate of change of angular motion is proportional to the force (torque) causing it

Question 15

What is newtons 3rd law applied to angular motion?

Answer 15

When a force (torque) is applied, there will be an equal and opposition reaction (torque) applied

Question 16

What is angular displacement measured in?

Answer 16

Radians

Question 17

What’s is angular velocity measured in?

Answer 17

Radians per second
Rads/s

Question 18

What is angular acceleration measured in?

Answer 18

Radians per second squared
Rads/S2