Kinetics
Measures the length between objects or points without regard for direction.
Distance
The universal force of attraction acting between all bodies of matter.
Gravity
The ability to do work, which is the ability to exert a force causing displacement of an object.
Energy
The length of the path travelled by light.
Meter
A german-born American theoretical physicist.
Einstein
When an object changes its position with respect to a reference point in a given time.
Motion
An influence that can cause an object to change its velocity.
Force
Equation in Einstein's theory of special relativity that expresses the equivalence of mass and energy.
E=mc2
Formed when two rays are joined together at a common point.
Angle
Any particular performance of a random experiment.
Trial
A vector whose length is the shortest distance from the initial to the final position of a point P undergoing motion.
Displacement
A force that resists the sliding or rolling of one solid object over another.
Friction
A force that resists the sliding or rolling of one solid object over another.
Friction
The rise of a line over the run of a line, or the change in vertical direction over the change in the horizontal direction.
Slope
The intensity of light as it varies with wavelength or frequency.
Spectrum
The motion of one object with respect to another object.
Relative Motion
The sudden, forceful coming together in direct contact of two bodies.
Collision
A measurement that refers to the amount of matter that makes up an object.
Mass
A unit of measurement that is used to specify the size or intensity of an event.
Magnitude
A set of coordinates that can be used to determine positions and velocities of objects in that frame.
Frame of Reference
A place or object used for comparison to determine if something is in motion.
Reference Point
The natural tendency of objects in motion to stay in motion.
Inertia
The speed in combination with the direction of motion of an object.
Velocity
A quantity that has both magnitude and direction.
An object that is moving only because of the action of gravity.
Free Fall