Introduction

Question 1

Kinematics definition

Answer 1

Describing motion without regard to the force producing the motion

Question 2

4 Angle units

Answer 2

Degrees
Minutes
Revolutions
Radians

Question 3

Angular displacement

Answer 3

The difference between initial and final positions

Question 4

Angular distance

Answer 4

Total angular distance travelled

Question 5

Angular velocity

Answer 5

Change in angular position / change in time

Rate of change in angular displacement with respect to time

Question 6

Angular speed

Answer 6

Angular distance / change in time

Question 7

Angular acceleration

Answer 7

Change in angular velocity per unit of time

Question 8

Relative angle + 2 examples

Answer 8

An angle between two segments

Knee, ankle

Question 9

Absolute angle + 2 examples

Answer 9

An angle defined relative to a line in space

Thigh & foot

Question 10

Radian definition

Answer 10

A measure of an angle at the centre of a circle whereby the length of the arc is equal to the length of the radius of the circle

Question 11

Biomechanics definition & author, year

Answer 11

The study of both structure and function of biological systems using methods of mechanics - Bartlett 1997

Question 12

How to calculate number of degrees in a radian. Show answer

Answer 12

Circumference of circle = 2πr
We know arc length = radius length
Therefore number of arc lengths in circumference = 2πr / r = 2π
2π must equal 360 degrees or 1 Rev
1π = 180 degrees
180 / π = 57.3 degrees