GCSE P2 Chapter 1 All aspects covered :) 0.0 / 5 ? PhysicsForces and MotionGCSEAQA Created by: emma998Created on: 26-02-14 17:13 Distance-time graphs Distance-time graphs can be used to represent the motion of an object Y axis = distance (m) X axis = time (s) Gradient = speed Speed(m/s) = Distance(m) / Time(s) Horizontal line = stationary Straight line sloping upwards = constant speed The steeper the line the faster the speed 1 of 4 Velocity and acceleration Velocity = speed in a given direction Change in speed or direction causes a change in velocity Acceleration = change in velocity Change in speed or direction causes acceleration Acceleration = (Final velocity(m) - Initial velocity(m)) / time(s) Negative acceleration = deceleration 2 of 4 Velocity-time graphs Velocity-time grpahs can be used to represent acceleration Y axis = Velocity (m) X axis = Time (s) Gradient = Acceleration (m/s)squared Horizontal line = constant speed Straight line sloping upwards = accelration Straight line sloping downwards = decceleration The steeper the gradient the greater the acceleration 3 of 4 Using graphs Velocity-time graphs can also be used to work out the distance travelled The area underneath the line of the graph represents the distance travelled (m) 4 of 4
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