Acceleration is the difference between constant and non-constant motion.
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Constant motion is when an object maintains a steady speed and direction over time, like a car driving at a constant speed on a straight road. Non-constant motion is when the speed or direction of an object changes over time, such as a car accelerating or turning.
Constant motion occurs when an object maintains a constant speed and direction, while accelerated motion involves a change in speed or direction, resulting in an acceleration. In constant motion, there is no change in velocity, whereas in accelerated motion, velocity changes over time.
Constant velocity refers to an object moving at a steady speed in a straight line, while constant acceleration means the object is changing its speed at a consistent rate.
Uniform linear motion occurs when an object moves in a straight line with constant speed. Uniform circular motion, on the other hand, occurs when an object moves in a circle at a constant speed, where the direction of motion is constantly changing.
Simple harmonic motion is a special type of vibratory motion where an object oscillates back and forth around an equilibrium position with a constant frequency and amplitude. Vibratory motion, on the other hand, is a broader term that includes any motion that involves periodic oscillations or vibrations, not necessarily with a constant frequency or amplitude.
Special relativity deals with the physics of objects moving at constant speeds, while general relativity includes the effects of gravity and acceleration on objects in motion.