Class 9th Science Chapter 7
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Questions and Answers

What is the SI unit of speed?

  • Centimeters per second (cm/s)
  • Miles per hour (mph)
  • Kilometers per hour (km/h)
  • Meters per second (m/s) (correct)

    • What is the formula to calculate average speed?

  • Time × Distance
  • Distance ÷ Time (correct)
  • Time ÷ Distance
  • Distance × Time

    • Which of the following is an example of non-uniform motion?

  • A train moving at a constant speed on a straight track
  • A cyclist accelerating from rest (correct)
  • A pendulum swinging back and forth
  • A car moving at a constant speed on a straight road

    • Study Notes

    Units of Speed

    • The SI unit of speed is meter per second (m/s)

    Calculating Average Speed

    • The formula to calculate average speed is: average speed = total distance / total time taken

    Types of Motion

    • Non-uniform motion is exemplified by a car traveling around a circular track, as its velocity changes constantly due to the change in direction

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    Description

    Test your knowledge of motion with this Class 9th Science Chapter 7 quiz. Answer important multiple choice questions on topics like SI unit of speed, examples of non-uniform motion, and the formula to calculate average speed. Sharpen your understanding of motion concepts with this quiz.

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