Sph3U- Chapter 3- Newton's Laws Of Motion

Front 1

Dynamics

Back 1

The study of the causes of motion

Front 2

Newton

Back 2

units (N)
The Si Unit of force is (1N=1kg*m/s^2)

Front 3

System Diagram

Back 3

A simple sketch of all the objects involved in a situation

Front 4

Force

Back 4

a push or a pull

Front 5

Free-body diagram

Back 5

(FBD): a simple drawing of an object showing all the forces that are acting on it

Front 6

Applied force (Fa)

Back 6

a force that results when one object makes contact with another and pushes or pulls on it (contact force)

Front 7

Tension (Ft)

Back 7

a pulling force from a rope or string on an object that always points toward the rope or string

Front 8

Normal force

Back 8

a perpendicular force exerted by surface on an object in contact with the surface; the normal force always points away from the surface (contact force)

Front 9

Friction (FT)

Back 9

opposes the sliding of two surgaces across one another; friction acts opposite to the motion or attempted motion

Front 10

Force of gravity (Fa)

Back 10

force of attraction between any two objects (Fg*mg)

g=a(9.8m/s^2)

Front 11

Name the four fundamental forces and their respective relative strength, range and effect

Back 11

1) gravitational - 1 - infinite - attract only
2) electromagnetic - 10^20 - infinite - attract and repel
3) strong nuclear- 10^38 - less than 10^-15 m - attract and repel
4) weak nuclear 10^25 - less than 10^-18 m -attract and repel