Inertiivinen

Inertiivinen is a Finnish word that translates to "inertial" in English. It is primarily used in physics to describe properties related to inertia. Inertia is the resistance of any physical object to any change in its state of motion. This means that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

The concept of inertiivinen is fundamental to Newton's laws of motion. Newton's first law of motion, also known as the law of inertia, states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. This law is directly related to the inertial properties of an object. The more massive an object is, the greater its inertia, and thus the more force is required to change its state of motion.

In physics, an inertial frame of reference is a frame of reference in which the first law of motion holds true. In an inertial frame, an object with no net force acting on it will move with a constant velocity. Non-inertial frames, on the other hand, are accelerating frames of reference where fictitious forces appear.

The term inertiivinen can also be used in a broader, more figurative sense to describe something that is unmoving, inactive, or resistant to change, similar to how "inertial" might be used metaphorically in English. However, its primary and most common usage is within the scientific context of physics.