Motion and Energy
Motion is change of position, while rest and motion are states described relative to surroundings and observers.
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Motion, Rest and Relative Motion
Motion is change of position, while rest and motion are states described relative to surroundings and observers.
Open article →Types of Motion: Path, Periodicity and Uniformity
Motion may be linear, circular, periodic, oscillatory or random; equal-time intervals also distinguish uniform from non-uniform motion.
Open article →Distance and Displacement
Distance is the scalar length of the actual path, whereas displacement is the vector change of position in a specified direction.
Open article →Speed, Velocity and Acceleration
Speed measures distance rate, velocity measures displacement rate, and acceleration measures velocity change per unit time.
Open article →Fundamental Equations of Motion
For uniformly accelerated motion, three equations connect initial and final velocity, acceleration, time and displacement.
Open article →Work, Energy and Power
A force does work by displacing a body, energy supplies the capacity for work, and power measures how rapidly work or energy is delivered.
Open article →Mechanical, Kinetic and Potential Energy
Mechanical energy is classified into kinetic energy due to motion and potential energy associated with position or configuration.
Open article →Energy Transformation and Conservation
Stored potential energy can become kinetic energy, while energy changes form without changing the total in an isolated system.
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