Term 2 Week 2 2020

Link to HAPARA site for 10HL Ballistics Module

Link to 10HL Google Meet

Link to 10HL Science FAQ

Newton's Three Laws of Motion

1. An object at rest will remain at rest, or an object moving at a constant velocity will remain moving at a constant velocity, unless acted upon by an unbalanced force (Net Force).

i.e. Only an unbalanced force (net force) can change an object's velocity (accelerate)

2. Net force = mass x acceleration

Fnet = ma

Fnet : Sum of all the forces - unit Newton (N)

m : Mass - unit kilogram (kg)

a : Acceleration - unit meter persecond squared (ms-2 )

3. Every action has an opposite and equal reaction on the other object

Newton's Three Laws of Motion

Newton's second Law F=ma

Why don't perpetual motion machines ever work?