Translational motion is the movement of an object from one point to another through space. An example of this is a bullet fired from a rifle.
Theoretically, translational motion of an object can occur along a curved path. In practical terms, however, translational motion more often occurs along straight lines. Since an object only changes its motion when a force acts upon it, and because force is defined as the product of mass and acceleration, it is more difficult to change the translational motion of a heavier object than a lighter one. The study of translational motion is known as translational dynamics.Learn More
Kinetic energy is used by exploiting the motion of an object. For example, the energy of a moving piston in an automotive engine provides transportation. The kinetic energy of moving water powers hydroelectric dams that provide electricity.Full Answer >
Friction is a force that opposes motion, so it is unhelpful in all situations where the motion of an object is desired. A by-product of friction is that energy is wasted in the form of heat, which can cause problems in temperature-sensitive environments.Full Answer >
Unbalanced force occurs when two forces acting on an object are not equal in size, causing a change in motion. Unbalanced forces cause a still object to move or moving objects to slow down or speed up, stop or change direction.Full Answer >
The law of inertia states 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 law of inertia is sometimes referred to as Newton's first law of motion.Full Answer >