BBC Learning Zone Clips

CLIP 4542

Newton's Second Law of Motion

Newton's Second Law of Motion
Key Info
  • Newton's Second Law of Motion
  • Duration: 01:16
  • Newton's Second Law of Motion is described through the examples of rockets, cars and seatbelts. When a rocket lifts off, the force of the engines' thrust is greater than the force from the weight of the rocket. This unbalanced force causes the rocket to accelerate. A car starting up and braking are both examples of acceleration caused by unbalanced forces. A seatbelt in a car provides an unbalanced force on the driver or passenger so that they decelerate safely.
  • Subject:



    Phys: Forces - Motion

  • Keywords: Newton's Second Law, rocket, thrust, weight, acceleration, car, drag, deceleration, seat belt, physics, bitesize
Ideas for use in class
  • The clip introduces Newton's Second Law of Motion. Students could suggest other examples of acceleration and deceleration and the unbalanced forces causing them.
Background details
  • Clip language : English
  • Aspect ratio : 16x9

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