Samacheer Kalvi 9th Science Motion Quiz

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Questions and Answers

What does the area under a velocity-time graph represent?

  • velocity of the moving object
  • displacement covered by the moving object (correct)
  • acceleration of the moving object
  • speed of the moving object

Which of the following is not a case of uniform circular motion?

  • Motion of a racing car on a circular track (correct)
  • Motion of the hour hand on the dial of the clock
  • Motion of the Earth around the Sun
  • Motion of a toy train on a circular track

What can an online Average Acceleration calculator be used to calculate?

  • displacement of the moving object
  • initial and final velocity
  • acceleration, initial and final velocity, and time taken (correct)
  • velocity of the moving object

In which type of motion is the motion of the Earth around the Sun classified?

<p>Periodic motion (B)</p> Signup and view all the answers

What does the motion of the hour hand on the dial of the clock represent?

<p>Uniform circular motion (B)</p> Signup and view all the answers

Flashcards

Area under velocity-time graph represents:

Displacement covered by the moving object.

Not an example of uniform circular motion:

Motion of a racing car on a circular track.

What an Average Acceleration Calculator calculates:

Acceleration, initial and final velocity, and time taken.

Earth's motion around the Sun is:

Periodic motion.

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Motion of the hour hand:

Uniform circular motion.

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Study Notes

Motion and Graphs

  • The area under a velocity-time graph represents the displacement of an object.

Uniform Circular Motion

  • Not all circular motions are uniform circular motions; examples include a car moving in a circle with varying speeds.

Calculators and Acceleration

  • An online Average Acceleration calculator can be used to calculate the average acceleration of an object over a specific time period.

Types of Motion

  • The motion of the Earth around the Sun is classified as circular motion.

Analogies and Examples

  • The motion of the hour hand on the dial of a clock is an example of uniform circular motion.

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