Speed and Velocity vs Velocity Distance and Displacement

Cards (30)

  • What is a scalar quantity?
    It only has magnitude
  • What is a vector quantity?
    It has both magnitude and direction
  • Is velocity a scalar or vector quantity?
    Vector quantity
  • Is speed a scalar or vector quantity?

    Scalar quantity
  • Give an example of speed.
    A person running at 4 m/s
  • Give an example of velocity.
    A person cycling 6 m/s east
  • Why is it common to confuse speed and velocity?
    Both are related to motion but differ in direction
  • What is distance considered as?
    Scalar quantity
  • Give an example of distance.
    10 meters
  • What is displacement considered as?
    Vector quantity
  • Give an example of displacement.
    A person running 40 meters east
  • How do you calculate speed?
    • Speed = Distance / Time
    • Example: 550 meters / 10 seconds = 55 m/s
  • How do you calculate velocity?
    • Velocity = Displacement / Time
    • Example: 550 meters east / 10 seconds = 55 m/s east
  • What does the letter 's' represent in the velocity equation?
    Displacement
  • What does the letter 's' represent in the speed equation?
    Speed
  • What does the letter 'd' represent in the speed equation?
    Distance
  • What does the letter 't' represent in both equations?
    Time
  • Why do people often use the velocity equation incorrectly?
    They may not have a direction
  • What is average speed?
    Total distance or displacement divided by total time
  • What is the average walking speed of a person?
    About 1.5 m/s
  • What is the average running speed of a person?
    Around 3 m/s
  • What is the average cycling speed of a person?
    About 6 m/s
  • What is the average speed of a car on the main road?
    Around 25 m/s
  • What is the average speed of a fast train?
    About 55 m/s
  • What is the speed of sound waves in air?
    330 m/s
  • How does the speed of sound change in different mediums?
    It varies depending on the medium
  • What factors can affect wind speed?
    Temperature, pressure, and structures
  • What can wind speed vary from?
    Almost zero to faster than a train
  • What are the key differences between speed and velocity?
    • Speed: Scalar, only magnitude
    • Velocity: Vector, magnitude and direction
  • What are the key differences between distance and displacement?
    • Distance: Scalar, only magnitude
    • Displacement: Vector, magnitude and direction