Write any four examples of uniform circular motion.(c) Is uniform circular motion accelerated motion

1. The motion of the earth revolving around the sun: The earth moves in a circular path around the sun, completing one revolution in about 365.25 days. This is an example of uniform circular motion because the speed of the earth's movement is constant, but the direction is continuously changing.

2. The motion of an electron around the nucleus in an atom: In a simplified model of an atom, electrons move in circular orbits around the nucleus. This is another example of uniform circular motion.

3. The motion of a car moving around a roundabout: When a car is moving around a roundabout at a constant speed, it is undergoing uniform circular motion. The speed of the car is constant, but the direction is continuously changing.

4. The motion of a satellite orbiting the earth: A satellite that is orbiting the earth at a constant speed is another example of uniform circular motion. The satellite maintains a constant speed, but its direction is continuously changing as it moves in its circular path.

(c) Yes, uniform circular motion is considered an accelerated motion. This is because acceleration is defined as a change in velocity, and velocity is a vector quantity, meaning it has both magnitude (speed) and direction. In uniform circular motion, the speed of the object remains constant, but the direction of the velocity is continuously changing. Therefore, there is always an acceleration present, directed towards the center of the circular path. This is often referred to as centripetal acceleration.