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*[[Lever]]s
*[[Gear]]s
==Forces and Motion==
===Speed and velocity, speed as distance over time; acceleration; distance-time and velocity-time graphs===
====Motion====
*[[Vector]]
*[[Scalar]]
*[[Displacement]]
*[[Distance]]
*[[Velocity]]
*[[Speed]] - typical speeds wind, sound, walking, running, cycling and other transportation systems;
*[[Acceleration]] - estimate everyday accelerations
**[[Free Fall]]
**[[Terminal Velocity]]
*[[Circular Motion]] - qualitative
*[[SUVAT]] - v<sup>2</sup> = u<sup>2</sup> + 2as
====Graphing Motion====
*[[Distance-Time Graph]]s
*[[Velocity-Time Graph]]s
===Forces, accelerations and Newton’s laws of motion===
*[[Newton's First Law]] - apply to stationary, uniform velocity, uniform speed but changing v, changing speed.
*[[Newton's Second Law]]
**[[Mass|Inertial Mass]] - Higher defined as ratio.
*[[Newton's Third Law]]
''Higher''
*[[Momentum]]
**[[Elastic Collision]]
**[[Inelastic Collision]]
===Safety in public transport===
*[[Reaction Time]] - how to measure
*[[Stopping Distance]]
**[[Thinking Distance]]
**[[Braking Distance]]
*[[Decelerate#Rapid Deceleration|Rapid Deceleration]]