Which of the following as a spin motion?
Correct answer: D. The daily rotation of Earth causes day and night
- A. The motion of the planets around the sun
- B. The moment of an electron around the nucleus
- C. The motion of the moon around the Earth
- D. The daily rotation of Earth causes day and night
Explanation
There are two types of circular motions; orbital motion and spin motion. Orbital motion; the axis of rotation does not pass through an object.Spin motion; the axis of rotation passes through an object. A, B & C are Orbital Motions.D is Spin motion as the "earth rotates about its own axis to complete one full day".
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About Angular Displacement
Angular displacement measures the change in a body’s angular position and is expressed in radians or degrees, with anticlockwise and clockwise directions assigned signs. It connects to arc length, angular velocity and angular acceleration, and must be distinguished from ordinary linear displacement in rotational motion.
Practise Rotational and Circular Motion
521 free Rotational and Circular Motion MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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