Speed, Distance, Acceleration

• How do you calculate distance?

  Distance = Speed x Time
• How do you calculate velocity?

  Velocity = Displacement ÷ Time
• What is a distance-time graph used for?

  To show the speed of an object
• What does the gradient of a distance/time graph show?

  How fast/slow an object is moving
• Distance/time graph


  .

  
• What does a horizontal line show on a distance/time graph?

  Object has stopped moving
• How do you calculate change in velocity?

  Acceleration x Time
• What unit is used to measure acceleration?

  m/s^2
• What unit is used to measure change in velocity?

  m/s
• Velocity/time graph


  .

  
• What factors affect thinking distance?

  -Being under the influence of alcohol/drugs

  -Tiredness

  -Medication

  -Using a phone
• What factors affect braking distance?

  -Worn tires

  -Worn brakes

  -Road conditions (Ice, water)
• What is stopping distance?

  Overall distance travelled by vehicle whilst stopping