* Uniform Acceleration: This means the acceleration is constant. The body's velocity changes by the same amount in each equal time interval.

* Negative Acceleration: This means the acceleration is in the opposite direction to the body's velocity. This results in the body slowing down.

Examples:

* A car braking to a stop: The car has a negative acceleration because it's slowing down. The acceleration is uniform if the car brakes at a constant rate.

* A ball thrown vertically upwards: After the ball leaves your hand, gravity acts on it, causing a downward acceleration. This acceleration is negative with respect to the ball's upward velocity, causing the ball to slow down until it reaches its highest point.

Important Note:

Negative acceleration doesn't necessarily mean the body is moving in the negative direction. It simply means the acceleration is in the opposite direction to the velocity.

Let me know if you have any other questions!