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Uniform Circular Motion Video Lecture | Physics for JAMB

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FAQs on Uniform Circular Motion Video Lecture - Physics for JAMB

1. What is uniform circular motion?
Ans. Uniform circular motion is a motion in which an object moves in a circular path at a constant speed. The object experiences a continuous change in direction but its speed remains constant throughout the motion.
2. How is uniform circular motion different from non-uniform circular motion?
Ans. In uniform circular motion, the speed of the object remains constant, whereas in non-uniform circular motion, the speed of the object varies. In non-uniform circular motion, the object may speed up or slow down while moving in a circular path.
3. What is the centripetal force in uniform circular motion?
Ans. The centripetal force in uniform circular motion is the force that keeps the object moving in a circular path. It acts towards the center of the circle and is responsible for constantly changing the direction of the object's velocity.
4. How is centripetal force related to the mass and velocity of the object in uniform circular motion?
Ans. The centripetal force is directly proportional to the mass of the object and the square of its velocity. This means that an increase in mass or velocity will result in a greater centripetal force required to keep the object in uniform circular motion.
5. Can an object be in uniform circular motion without any force acting on it?
Ans. No, an object cannot be in uniform circular motion without any force acting on it. According to Newton's first law of motion, an object will continue to move in a straight line at a constant speed unless acted upon by an external force. In the case of uniform circular motion, the centripetal force is the external force required to keep the object in the circular path.
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