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Speed, Velocity And Acceleration
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Speed, Velocity And Acceleration

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A lesson ppt on speed, velocity and acceleration for high school students.

A lesson ppt on speed, velocity and acceleration for high school students.

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  • 1. Topic 2: Kinematics
  • 2. 2.1 Speed, Velocity and Acceleration
    • Speed is the distance traveled divided by time.
    • Speed = distance traveled/time taken
    • The SI unit of speed is metre per second (m s -1 )
  • 3. 2.1 Speed, Velocity and Acceleration
    • Velocity is the distance traveled in a given direction (or displacement) divided by the time taken.
    • Velocity = displacement/time taken
    • The SI unit of speed is metre per second (m s -1 )
  • 4. 2.1 Speed, Velocity and Acceleration
    • Two objects travelling with the same speed but in different directions have different velocities.
    • Since velocity has both magnitude and direction. it is a vector quantity.
  • 5. 2.1 Speed, Velocity and Acceleration
    • Acceleration is the rate of change of velocity.
    • Acceleration
    • = change in velocity/time taken
    • = (final velocity - initial velocity)/time taken
    • The acceleration is uniform if the rate of change of velocity is constant.
  • 6. 2.1 Speed, Velocity and Acceleration
    • In linear motion, a body traveled in a straight line. The direction of motion does not change. Any change in the velocity is due to the change in speed.
    • Hence the acceleration is
    • acceleration = Change in speed/time taken
  • 7. 2.1 Speed, Velocity and Acceleration
  • 8. 2.1 Speed, Velocity and Acceleration
    • When the velocity decreases, the acceleration is negative and the acceleration is known as deceleration or retardation.
  • 9. 2.1 Speed, Velocity and Acceleration
  • 10. 2.1 Speed, Velocity and Acceleration
    • Non-uniform acceleration — the rate of change of velocity is not constant, instead it changes with time
  • 11. 2.1 Speed, Velocity and Acceleration
  • 12. 2.1 Speed, Velocity and Acceleration
  • 13. 2.1 Speed, Velocity and Acceleration
  • 14. 2.1 Speed, Velocity and Acceleration
  • 15. Practice Questions
  • 16. Practice Questions