The center of gravity is a point in an object where the weight of the object is evenly distributed in all directions. It is also known as the center of mass.
Yes, every object has a center of gravity. It is a fundamental property of all physical objects.
No, the center of gravity does not necessarily have to be inside the object. It can be located anywhere within or outside the object, as long as the weight is evenly distributed around that point.
If the center of gravity is outside the object, the object will be unstable and will tend to topple over. This is why objects with a low center of gravity, such as a wide-based pyramid, are more stable than objects with a high center of gravity, such as a tall narrow tower.
Yes, the center of gravity can change if the distribution of weight within an object changes. For example, adding weight to one side of an object will shift the center of gravity towards that side. Additionally, the center of gravity can also change when an object rotates or moves in space.