How can a photographer achieve motion blur in their images?

Achieving motion blur in images is primarily accomplished by using a slow shutter speed. When the shutter speed is slow, the camera sensor is exposed to light for an extended period, allowing any movement—whether it's the subject moving within the frame or the camera itself—to be recorded as a blur. This effect can convey a sense of speed and dynamism in the photograph, transforming a static scene into one that evokes motion.

In contrast, a fast shutter speed freezes motion, preventing blur, while deliberately moving the camera during the exposure can create a different type of effect but is not the most common method to achieve standard motion blur. A polarizing filter is primarily used to reduce reflections and enhance colors, and does not contribute to the effect of motion blur.