"Velocity is the speed and the direction of motion of an object."
The rate at which an object changes its position.
Position: The location of an object with respect to a reference point.
Displacement: The change in position of an object from initial to final position.
Velocity: The rate at which an object changes its position relative to a reference point, described by its magnitude (speed) and direction.
Acceleration: The rate at which an object changes its velocity, either in terms of magnitude (speed) or direction.
Time: The interval during which a change in position, velocity, or acceleration occurs.
Distance: The total amount of ground covered by an object, regardless of direction.
Speed: The magnitude of an object's velocity, usually measured in units of distance per time (e.g. meters per second).
Vector: A quantity that has both magnitude and direction, such as velocity or acceleration.
Scalar: A quantity that only has magnitude, such as speed.
Frame of reference: The point from which an observer is measuring the position, velocity, and acceleration of an object.
Uniform Motion: The motion of an object at a constant speed and in a straight line.
Non-Uniform Motion: The motion of an object that changes its speed or direction.
Instantaneous Velocity: The velocity of an object at a specific instant in time.
Average Velocity: The velocity of an object over a particular interval of time.
Free Fall: The motion of an object as it falls under the influence of gravity, which causes a constant acceleration towards the ground of approximately 9.8 m/s².
Projectile Motion: The motion of an object that is launched into the air and travels along a curved path under the influence of both gravity and air resistance.
Relative Velocity: The velocity of an object as observed from different points of view, which can appear different depending on the observer's frame of reference.
Galilean Transformations: The mathematical equations used to convert the velocity and position of an object from one frame of reference to another.
Inertial Frames of Reference: A frame of reference in which the law of inertia (Newton's first law) is observed, meaning that objects in motion remain in motion at a constant velocity unless acted upon by a force.
Instantaneous Velocity: The velocity of an object at a particular instant of time.
Average Velocity: The average velocity of an object is the total displacement divided by the time taken.
Uniform Velocity: When an object moves at a constant speed and in a straight line, it has uniform velocity.
Non-Uniform Velocity: If an object changes its speed or direction, it has non-uniform velocity.
Tangential Velocity: Tangential velocity is the velocity of an object that is tangential to its circular path.
Rotational Velocity: Rotational velocity is the velocity of an object around its axis of rotation.
Relative Velocity: Relative velocity is the velocity of an object with respect to another object.
Escape Velocity: Escape velocity is the minimum velocity required for an object to escape the gravitational pull of another object.
Terminal Velocity: Terminal velocity is the maximum velocity acquired by an object that is falling through a fluid due to the opposing force of air resistance.
Projectile Velocity: Projectile velocity is the velocity of an object that has been launched and is moving under the influence of gravity.
Radial Velocity: Radial velocity refers to the velocity of an object that is moving towards or away from a particular point or axis.
Orbital Velocity: Orbital velocity is the velocity required by an object to maintain a stable orbit around another object.
Instantaneous Center of Velocity: The instantaneous center of velocity is the point around which an object appears to rotate at any given instant.
Escape Velocity of a Star: Escape velocity of a star is the minimum velocity required for an object to escape the gravitational pull of a star.
Escape Velocity of a Planet: Escape velocity of a planet is the minimum velocity required for an object to escape the gravitational pull of a planet.
"Velocity is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of bodies."
"Velocity is a physical vector quantity: both magnitude and direction are needed to define it."
"The scalar absolute value (magnitude) of velocity is called speed."
"The quantity of speed is measured in the SI (metric system) as metres per second (m/s or m⋅s−1)."
"For example, '5 metres per second' is a scalar, whereas '5 metres per second east' is a vector."
"If there is a change in speed, direction or both, then the object is said to be undergoing an acceleration."
"Velocity is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of bodies."
"Velocity is the speed and the direction of motion of an object."
"The quantity of velocity is measured in the SI (metric system) as metres per second (m/s or m⋅s−1)."
"The scalar absolute value (magnitude) of velocity is called speed."
"If there is a change in speed, direction or both, then the object is said to be undergoing an acceleration."
"The scalar absolute value (magnitude) of velocity is called speed."
"Both magnitude and direction are needed to define it."
"The scalar absolute value (magnitude) of velocity is called speed."
"5 metres per second east"
"If there is a change in speed, direction, or both, then the object is said to be undergoing an acceleration."
"If there is a change in speed, direction, or both, then the object is said to be undergoing an acceleration."
"Kinematics describes the motion of bodies."
"The scalar absolute value (magnitude) of velocity is called speed." Please note that for some questions, multiple quotes could have been used to answer them.