I'm Etalie, I'm currently studying for my AS levels and will (hopefully) be posting revision entries on psychology and sociology.
I previously uploaded posts on GCSE revision. If it helps you then great! But I'm not an expert on anything AT ALL so don't rely on everything I post.
(Also, I'm not taking credit for any of the pictures or info here, it's all off google images, notes from BBC bitesize and CGP revision guides, textbooks etc)

(NB - GCSE: italics in the science subjects are things that are only in paper 2!)

Tuesday, 1 April 2014

1 - FORCES AND MOTION 
Velocity and Acceleration -

Speed - how fast you're going (m/s)
Velocity - speed with a direction (m/s and direction)

Average speed = distance moved / time taken




Acceleration - how quickly velocity is changing (eg: change in speed, change in direction) (m/s squared)




Acceleration = change in velocity / time taken
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