3.04 Summary

• Displacement time graphs
• The gradient of the graph represents the velocity of the object
• An object moving with constant velocity produces a straight line graph
• The steeper the gradient the greater the velocity
• The shallower the gradient the lower the velocity
• An object whose velocity is changing produces a curved graph
• If the velocity is increasing the gradient of the graph gets steeper
• If the velocity is decreasing the gradient get shallower
• Velocity time graphs
• The gradient of the graph represents the acceleration of the object
• An object moving with constant acceleration produces a straight line graph
• The steeper the gradient the greater the acceleration
• The shallower the gradient the lower the acceleration
• If the value of acceleration is different for different sections of the objects motion this produces a graph with a different gradient for each section
• An object whose acceleration is changing produces a curved graph
• If the acceleration is increasing the gradient of the graph gets steeper
• If the acceleration is decreasing the gradient get shallower
• The area under a velocity time graph represents the change in displacement caused by the objects motion