Velocity is a vectorial quantity, speed with a direction.
Velocity is a constant traveling speed. Acceleration is increasing traveling speed (variation of speed over time)
-- "Speed" is the rate at which distance changes. -- "Velocity" is speed along with the direction of motion. -- "Acceleration" is the rate at which velocity changes, including the direction of the change.
The escape velocity of a black hole is equal or greater than the speed of light, so light cannot escape
The units are the same (metres per second) except that the velocity also has the direction of motion associated with it.
It doesn't make sense to compare a scalar quantity (such as speed) with a vector quantity (such as velocity). Therefore you can't say that they "are the same" or "are not the same". If the velocity is constrained to be along the x-axis, for example, then specifying the speed (-10 m/s) will also specify the velocity (-10 m/s x-direction).
velocity is speed with direction; velocity is a vector and speed is a scalar
Speed in a given direction is velocity.
Speed has no direction, velocity does.
Velocity and speed are not synonyms.
SPEED has the speed only; while VELOCITY has the direction and the speed.
Instantaneous speed is the magnitude of the velocity. Velocity also states the [direction] of the speed.
Speed in a given direction is called velocity.