Circular motion Definition and 1000 Threads

In physics, circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation. The rotation around a fixed axis of a three-dimensional body involves circular motion of its parts. The equations of motion describe the movement of the center of mass of a body. In circular motion, the distance between the body and a fixed point on the surface remains the same.
Examples of circular motion include: an artificial satellite orbiting the Earth at a constant height, a ceiling fan's blades rotating around a hub, a stone which is tied to a rope and is being swung in circles, a car turning through a curve in a race track, an electron moving perpendicular to a uniform magnetic field, and a gear turning inside a mechanism.
Since the object's velocity vector is constantly changing direction, the moving object is undergoing acceleration by a centripetal force in the direction of the center of rotation. Without this acceleration, the object would move in a straight line, according to Newton's laws of motion.

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  1. G

    Nonuniform Circular Motion: Old-Fashioned Amusement Park Ride

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  2. W

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  3. L

    Need Help - Regarding the mixture of circular motion and hooke's law

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  4. L

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  5. P

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  6. I

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  7. K

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  8. A

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  9. B

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  10. AJKing

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  11. S

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  12. S

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  13. H

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  14. S

    Solving Circular Motion Problems: Displacement, Speed, & Acceleration

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  15. R

    Calculating Tangential Speed and Centripetal Acceleration on Earth's Equator

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  16. L

    Circular Motion of the Earth around the sun

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  17. 2

    Circular Motion of a Ferris wheel

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  18. T

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  19. M

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  20. F

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  21. J

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  22. K

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  23. L

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  24. V

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  25. S

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  26. D

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  27. A

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  28. M

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  30. E

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  32. H

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  33. J

    Circular Motion: Find Angle of Inclination of String

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  34. S

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  35. A

    Uniform Circular Motion Homework: Maximum Speed and Tension Calculation

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  36. I

    Circular Motion on a Hemisphere: Finding Speed from Geometric Conditions

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  37. B

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  38. D

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  39. E

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  40. B

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  41. V

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  42. J

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  43. C

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  44. J

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  45. T

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  46. D

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  47. D

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  48. D

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  49. D

    Circular Motion - Speed, Accel & Friction

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  50. J

    Friction direction in circular motion

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