Q1: When a body moves round a fixed axis, it has

ANS:B - a circular motion

1. Constant Distance from the Center: In circular motion, the object maintains a constant distance from the center of rotation. This distance is the radius of the circle defined by the path of motion.
2. Changing Direction: The object's velocity vector continuously changes its direction as it moves along the circular path. This change in direction results in acceleration, even if the speed remains constant.
3. Angular Velocity: Circular motion is often described in terms of angular velocity, which measures the rate of change of the angle through which the object rotates per unit time.

• Planetary Motion: Planets revolving around the sun exhibit circular motion, albeit in slightly elliptical orbits.
• Satellite Orbits: Artificial satellites and natural moons orbiting celestial bodies like the Earth also move in circular or elliptical paths.
• Circular Track: A car moving around a circular track or a rotating amusement park ride demonstrates circular motion.