156 Exercises 1: Motion Classification
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Questions and Answers

Which type of motion is exhibited by the motion of a child in a merry-go-round?

  • Circular motion (correct)
  • Oscillatory motion
  • Random motion
  • Motion along a straight line

    • Which statement about the basic unit of time is incorrect?

  • Every object moves with a constant speed. (correct)
  • The basic unit of time is second.
  • Distances between two cities are measured in kilometers.
  • The time period of a given pendulum is constant.

    • If a simple pendulum takes 32 s to complete 20 oscillations, what is the frequency of the pendulum?

  • $\frac{1}{32}$ Hz
  • $\frac{32}{20}$ Hz
  • $\frac{20}{32}$ Hz (correct)
  • $\frac{1}{20}$ Hz

    • If a train covers a distance of 240 km in 4 hours, what is the average speed of the train in m/s?

    <p>30 m/s</p> Signup and view all the answers

    If the odometer reading of a car changes from 57321.0 km to 57336.0 km in 20 minutes, what is the speed of the car in km/h?

    <p>$\frac{15}{20}$ km/h</p> Signup and view all the answers

    If Salma takes 15 minutes to reach her school on a bicycle with a speed of 2 m/s, what is the distance between her house and school?

    <p>1 km</p> Signup and view all the answers

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