Circular Motion and Velocity Quiz

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Questions and Answers

Which of the following statements about velocity in circular motion is true?

  • Velocity is always changing in circular motion. (correct)
  • Velocity is independent of the direction of travel in circular motion.
  • Velocity is equal to speed in circular motion.
  • Velocity is always constant in circular motion.

What is true about the speed of an object moving in a circle?

  • The speed is always changing in circular motion.
  • The speed is equal to the distance traveled in circular motion.
  • The speed is independent of the direction of travel in circular motion.
  • The speed is always constant in circular motion. (correct)

What happens to the direction of travel in circular motion?

  • The direction of travel remains constant in circular motion.
  • The direction of travel is always changing in circular motion. (correct)
  • The direction of travel is independent of the speed in circular motion.
  • The direction of travel is opposite to the speed in circular motion.

What causes an object to change direction in circular motion?

<p>Force acting at 90 degrees to the object's direction of travel (C)</p> Signup and view all the answers

What happens to the speed in circular motion when the direction of travel changes?

<p>The speed remains constant (B)</p> Signup and view all the answers

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Study Notes

Circular Motion

  • Velocity is constantly changing in circular motion due to the change in direction.
  • The speed of an object moving in a circle remains constant, but the direction of motion changes continuously.
  • The direction of travel in circular motion is constantly changing, which means the object is accelerating.
  • An object changes direction in circular motion due to a force acting perpendicular to the direction of motion, causing the object to turn.
  • The speed of an object in circular motion remains constant, but the direction of motion changes, resulting in a continuous change in velocity.

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