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Flashcards in Introduction Deck (17):
1

When was the first attempt for mechanical analysis of movement?

1920s and 1930s

2

Explain kinematics

Concerned with motion in terms of time and space

3

Explain kinetics

Concerned with the forces the cause or result the motion

4

Define linear motion

Movement of the body in a straight line where all parts are moving in the same direction t the same time and same distance

5

Define rectilinear

Motion along a straight line

6

Define curvilinear

Motion along a curved line

7

Define angular motion

Rotation that takes place when a body moves along a circular path so that all parts of the body travel through the same angle in the same direction and time

8

Define axis of rotation

The line around which the rotation occurs

9

Define general motion

A combination of linear and angular
E.g cycling

10

Define vector quantities

A quantity that has both a direction and a magnitude
Represented by arrows
E.g Velocity, force, acceleration

11

Define scalar quantities

A quantity which has only a magnitude
e.g speed, distance, mass

12

Define velocity

Change in displacement over a given period of time

13

Define acceleration

A change in velocity over time
(Final velocity- initial velocity) / time

14

Define speed

A change in distance over time
Distance/time

15

Define displacement

The shortest straight line measurement between two points.
E.g the displacement would be 0m for a marathon where the start and finish line is in the same place

16

Define impulse

The effect of a force acting over a period of time

17

Define deceleration

A negative change in velocity over time