Final answer:
The term that describes seeing an object from a different angle is perspective, and changes in this perspective can be due to refraction. The image seen can vary in its properties, like whether it's real or virtual or if it's magnified.
Step-by-step explanation:
The term that best describes someone looking at a certain object but at a different angle is perspective. In the context of viewing an object through a glass of water, this change in view is due to refraction, which is the changing of a light ray's direction when it passes through variations in matter, such as water or glass. This can cause the object to appear distorted. In the case of a lens or a mirror, depending on the specifics, the image formed could be real or virtual, upright or inverted, and magnified or reduced. When discussing a negative magnification as per lenses, a negative value suggests that the image is inverted and real if the object distance is greater than the focal length of the lens.