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Q: When an object produces uniform circular velocity, which of the following changes?
  • A. mass
  • B. momentum
  • C. speed
  • D. direction
Correct Answer: Option D - The direction of the velocity is directed in the same direction that the object moves. Since an object moving in uniform circular motion the perimeter of the circle with a constant speed, but its direction is continuously changing. Its direction is always tangent to the circle. Example - Such as the movement of the Earth around the Sun, the movement of the electron around the nucleus, etc.
D. The direction of the velocity is directed in the same direction that the object moves. Since an object moving in uniform circular motion the perimeter of the circle with a constant speed, but its direction is continuously changing. Its direction is always tangent to the circle. Example - Such as the movement of the Earth around the Sun, the movement of the electron around the nucleus, etc.

Explanations:

The direction of the velocity is directed in the same direction that the object moves. Since an object moving in uniform circular motion the perimeter of the circle with a constant speed, but its direction is continuously changing. Its direction is always tangent to the circle. Example - Such as the movement of the Earth around the Sun, the movement of the electron around the nucleus, etc.