Which of the following changes when a body performs uniform circular motion?*1 pointSpeedMassDirectionEnergy

In uniform circular motion, the speed of the body remains constant but the direction of the velocity changes continuously. Therefore, the correct answer is Direction. The mass of the body does not change, and while the kinetic energy remains constant (as the speed is constant), the potential energy may change if the circular path is not on a single plane. However, in most contexts of uniform circular motion (like a car moving in a flat circular path), the energy is considered constant.

In uniform circular motion, the speed of the body remains constant but the direction of the velocity changes continuously. Therefore, the correct answer is Direction. The mass of the body does not change, and while the kinetic energy remains constant because the speed is constant, the potential energy may change if the circular path is not on a single plane. However, in most contexts of uniform circular motion (like a car moving in a flat circular path), energy is not considered as changing.

In uniform circular motion, the speed of the body remains constant but the direction of the velocity changes continuously. Therefore, the correct answer is "Direction". The mass of the body does not change, and while the kinetic energy remains constant (as the speed is constant), the potential energy may change if the circular path is not on a single plane. However, in most contexts of uniform circular motion (like a car turning on a flat road), the energy is typically considered constant.

The property that changes when a body performs uniform circular motion is Direction.

Here's why:

1. Speed: In uniform circular motion, the speed of the body remains constant. It's the velocity that changes due to change in direction, not speed.

2. Mass: The mass of a body doesn't change with the type of motion it is performing. So, it remains the same in uniform circular motion.

3. Direction: In uniform circular motion, the direction of the body is continuously changing. Even though the speed remains constant, the direction changes at every point of the motion.

4. Energy: The energy of a body in uniform circular motion remains constant as long as no external work is done on it.

So, the correct answer is Direction.