"In physics and astronomy, a frame of reference (or reference frame) is an abstract coordinate system whose origin, orientation, and scale are specified by a set of reference points."
Motion that is observed from a different reference frame.
Position Vector: The vector which represents a particle's position relative to some origin or reference point.
Velocity: The rate of change of an object's position with respect to time.
Acceleration: The rate of change of an object's velocity with respect to time.
Frame of reference: A coordinate system that defines the position and motion of objects within it.
Relative motion: The motion of an object with respect to a particular frame of reference.
Circular motion: Motion of an object moving along a circular path.
Centripetal acceleration: The change in velocity of an object moving in a circular path.
Projectile motion: Motion of an object that is thrown, launched or projected through the air.
Relative velocity: The velocity of an object relative to another object or observer.
Time of flight: The time between the launch and landing of a projectile.
Trajectory: The path that an object takes through space.
Gravity: The force of attraction between two objects.
Inertia: The tendency of an object to resist changes in its state of motion.
Newton's laws: A set of laws that describe the relationship between an object's motion and the forces acting on it.
Vector algebra: The mathematical rules and techniques used to manipulate vectors.
Linear Motion: When an object moves along a straight line path.
Circular Motion: When an object moves in a circular path around a center point.
Projectile Motion: When an object is thrown or launched and moves in a curved path due to gravity and air resistance.
Uniform Motion: When an object moves at a constant speed.
Non-Uniform Motion: When an object moves at varying speeds.
Angular Motion: When an object rotates around an axis.
Curvilinear Motion: When an object moves along a curved path without a fixed axis.
Relative Velocity: When the velocity of an object is described in relation to another object or point of reference.
Uniform Circular Motion: When an object moves in a circular path at a constant speed.
Oscillatory Motion: When an object moves back and forth around a fixed point.
"For n dimensions, n + 1 reference points are sufficient to fully define a reference frame."
"...reference points―geometric points whose position is identified both mathematically (with numerical coordinate values) and physically (signaled by conventional markers)."
"Using rectangular Cartesian coordinates, a reference frame may be defined with a reference point at the origin and a reference point at one unit distance along each of the n coordinate axes."
"In Einsteinian relativity, reference frames are used to specify the relationship between a moving observer and the phenomenon under observation."
"...the term often becomes observational frame of reference (or observational reference frame)."
"Which implies that the observer is at rest in the frame, although not necessarily located at its origin."
"A relativistic reference frame includes (or implies) the coordinate time, which does not equate across different reference frames moving relatively to each other."
"The coordinate time, which does not equate across different reference frames moving relatively to each other."
"For n dimensions, n + 1 reference points are sufficient to fully define a reference frame."
"Geometric points whose position is identified both mathematically (with numerical coordinate values) and physically (signaled by conventional markers)."
"Using rectangular Cartesian coordinates, a reference frame may be defined..."
"Reference frames are used to specify the relationship between a moving observer and the phenomenon under observation."
"Observational frame of reference (or observational reference frame)."
"The observer is at rest in the frame..."
"The coordinate time, which does not equate across different reference frames moving relatively to each other."
"A set of reference points - geometric points whose position is identified both mathematically and physically."
"A reference frame may be defined with a reference point at the origin and a reference point at one unit distance along each of the n coordinate axes."
"To specify the relationship between a moving observer and the phenomenon under observation."
"All possible coordinate times are essentially equivalent" in Galilean relativity, whereas "the coordinate time does not equate across different reference frames moving relatively to each other" in relativistic frames.