P2.1

• Describe how to measure distance and time in a range of scenarios

  Use formula D = R × T
• Describe how to measure distance and time and use them to calculate speed

  Speed = distance ÷ time
• Explain the vectors -scaler distinction as it applies to displacement, distance velocity and speed

  Scalar quantities are quantities like speed and distance that are only numbers but vector quantities are quantities like vectors and displacement that have a direction as well.displacement is vector , distance is scalar, velocity is a vector and speed is scalar.
• Recall how to interpret enclosed area in velocity time graphs

  By counting squares ,how much distance one square represents
• Recall how to calculate average speed for non uniform

  Average speed is the ratio of the total distance travelled within the given time interval to the time interval

  average speed = total distance covered / total time taken