Circular motion happens when an object moves around a point in space, never getting farther from it or closer to it. The distance from the center point is the radius of the circle.Know More
In order to travel in a circular motion, an object must constantly change direction. Though its path forms a circle, the object is always moving tangentially to the circle. One tangent is simply interrupted by the next with each tiny directional shift.
When the object travels at the same speed around the point, it has uniform circular motion. According to Newton's second law, an object in uniform circular motion will also experience a force in the direction of the center point.Learn more about Motion & Mechanics
An object in motion has a negative velocity when the movement is in the negative direction relative to the observer. Whether velocity is positive or negative only indicates the direction of the movement of an object.Full Answer >
Projectile motion is caused by gravity's effect on the path of any object that is launched or thrown, according to HowStuffWorks. Projectile motion has both horizontal and vertical components. The horizontal component is due to the velocity of the object, while the vertical component is due to the force of gravity.Full Answer >
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 >
In the study of physics, non-uniform motion occurs, when an object travels an unequal distance in an equal amount of time. An example would be a car that travels 30 miles during the first hour of a trip and 50 miles during the second hour.Full Answer >