b) graphs

• state what the y-axis and x-axis of a distance/displacement-time graph represents

• state what the gradient and its different values represent and how to calculate the gradient

• y-axis = distance/displacement (m)

  • x-axis = time (s)

• gradient = velocity (ms^-1)

  • constant gradient = constant velocity

  • changing gradient = acceleration

  • zero gradient = zero velocity

  • calculated using rise/run

• state what the y-axis and x-axis of a velocity-time graph represents

• state what the gradient and its different values represent and how to calculate the gradient

• y-axis = velocity (ms^-1)

  • x-axis = time (s)

• gradient = acceleration (ms^-2)

  • constant gradient = constant acceleration

  • changing gradient = changing acceleration

  • zero gradient = zero acceleration/constant velocity

  • calculated using rise/run

• state what the area underneath a velocity-time graph represents

• explain how to calculate the area underneath the graph when acceleration is constant and changing

• area underneath a velocity-time graph = displacement (m)

  • when the acceleration is constant

    • calculate the area of the component shapes

    • add up the areas

  • when the acceleration is changing

    • count the number of squares entirely or almost entirely below the graph

    • multiply by the acceleration of each square

n/a

n/a