Movement and Position

• Average speed = distance/time

  Average speed is measured in meters per second (m/s)

  Distance is measured in meters (m)

  Time is measured in seconds (s)
• Average speed can be found from a graph if you read the total distance travelled and time taken from the last data point.
• The instantaneous speed is the speed at one specific time.
• Gradient = rise/run
• When planning an investigation in Physics:

  1. Equation
  2. Measure _____ using _____ (as many times as it takes)
  3. Any other experimental detail
  4. "Repeat and take an average"
• acceleration = change in velocity/time
• At rest means not moving
• acceleration = gradient of a velocity-time graph
• distance = area under a velocity-time graph
• v^2 = u^2 + 2as