Option 1: Acceleration remains uniform:

This option is incorrect. In uniform circular motion, the object`s acceleration is not uniform. This is because the object is constantly changing direction, so its velocity vector is changing, resulting in a non-zero acceleration towards the center of the circular path. This acceleration is called centripetal acceleration.

Option 2: Velocity changes:

This option is correct. In uniform circular motion, the object`s velocity is constantly changing. Although the object`s speed remains constant (since it is moving in a circle at a constant radius), its velocity vector is changing because its direction is constantly changing.

Option 3: Speed changes:

This option is incorrect. In uniform circular motion, the object`s speed remains constant. This is because the object is moving at a constant radius, so the distance traveled per unit time (speed) does not change. Only the direction of the object`s velocity changes.

Option 4: Velocity remains uniform:

This option is incorrect. As explained in option 2, the object`s velocity changes in uniform circular motion. Therefore, the object`s velocity does not remain uniform.

In uniform circular motion, the object`s velocity changes while its speed remains constant. The object experiences a centripetal acceleration towards the center of