1. Changing the speed: This refers to increasing or decreasing the rate at which an object is moving. For example, accelerating a car from a standstill to 60 mph increases its speed.

2. Changing the direction: Even if the speed remains constant, a change in the direction of movement constitutes a change in velocity. For example, a car driving in a circle at a constant speed is still changing its velocity because its direction is constantly changing.

Therefore, any change in either speed or direction will result in a change in velocity.