Acceleration 2

• What should you be able to calculate by the end of the video?

  Velocity of an object accelerating
• How is acceleration calculated?

  Change in velocity divided by time
• What is the equation for calculating acceleration?

  Acceleration = change in velocity / time
• What equation is used for an object accelerating at a constant rate?

  Final velocity squared minus initial velocity squared equals two times acceleration times distance
• Is the equation for constant acceleration provided in the exam?

  Yes, it is given in the exam
• Which tier is more likely to encounter the acceleration equation?

  Higher tier students
• If a car accelerates from 8 m/s to 12 m/s at 2 m/s², what is the distance traveled?

  20 meters
• What is the initial velocity of the cyclist in the sample question?

  3 meters per second
• What is the final velocity of the cyclist after acceleration?

  5 meters per second
• What is the distance traveled by the cyclist?

  50 meters
• What is the calculated acceleration of the cyclist?

  0.16 meters per second squared
• What is the initial velocity of the train in the final question?

  20 meters per second
• What is the acceleration of the train?

  5 meters per second squared
• What is the distance over which the train accelerates?

  50 meters
• What is the final velocity of the train after acceleration?

  30 meters per second
• What is the acceleration of an object falling towards Earth?

  Approximately 9.8 meters per second squared
• What force acts against a skydiver as they fall?

  Air resistance
• What happens when air resistance balances the force of gravity?

  The object stops accelerating
• What is the term for the constant velocity reached by falling objects?

  Terminal velocity
• What does terminal velocity depend on?

  Shape of the object
• What type of fluid is mentioned in relation to falling objects?

  Air
• What is the effect of an object's shape on its terminal velocity?

  It affects the force of friction
• Where can you find more questions on acceleration?

  In the revision workbook
• What is the purpose of the video?

  To teach about velocity and acceleration