GCSE Physics

 Speed and velocity are both a measure of  how fast you are going  speedAll speed and velocity are both measured in  m/s speed is How fast you are going with regard to direction Velocity however Is a measure of how fast you are you going , however it must also have the direction specified Label the graph frbot left to right on the top and then left to right on the bottom  Stopped decelerating steady speed accelerating steady speed (in other direction) speed = Distance -----------time  On a distance time graph what does the gradient show us How fast the object is travelling . This is because the gradient is the change in distance (vertical axis) divided by the change in time (horizontal axis) on a distance time graph the gradient =  Speed  On a distance time graph flat sections are where the object is  Stationary  On a distance time graph straight uphill or downhill means  It's travelling at a steady speed  On a distance time graph downhill sections means It's going back to starting points  On a distance time graph curves Represent acceleration or deceleration  On a distance time graph a steeping curve means its  Speeding up  On a distance time graph a levelling off curve means its  slowing down Acceleration is  How quickly velocity is changing this change in velocity can be a change in speed or change in direction or both  what is the formula for acceleration Change in velocity-----------------------time taken  or  (v - u) ----------  t here v is tye final velocity and u is the initial velocity What are the units of acceleration m/s ^2acceleartion is the change inn velocity (m/s) per second (s) A skulling cat accelerates from 2m/s to 6m/s in 5.6s find its acceleration A = (v-u) / t Label the graph from left to right on the top and then left to right on the bottom  Steady speed steady speed acceleation increasing accelerationdece Authorghoran ID182892 Card SetGCSE Physics DescriptionRevision Updated2012-11-17T10:20:54Z Show Answers