Speed
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Questions and Answers

What is the key difference between speed and velocity?

  • Speed is a scalar quantity, while velocity is a vector quantity (correct)
  • Speed and velocity are the same thing
  • Speed is a vector quantity, while velocity is a scalar quantity
  • Speed and velocity depend on the direction of motion

    • If an object moves in a circular path at a constant speed, what can be said about its velocity?

  • The velocity is constantly changing
  • The velocity is constant
  • The velocity is zero
  • The velocity is undefined (correct)

    • What is the SI unit of velocity?

  • Kilometers
  • Meters per second (correct)
  • Miles per hour
  • Kilometers per hour

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