Velocity, or Speed
A fast-moving stream is called a river or a torrent.
Air moving very fast is typically referred to as "wind."
Velocity includes direction in addition to speed, while speed only measures how fast something is moving. This means that velocity provides both the rate at which an object is moving and the direction in which it is moving.
Speed and velocity both describe how fast an object is moving. The main difference is that velocity includes direction, whereas speed is just a measure of how fast something is moving regardless of direction.
Friction
"Fast-paced" is an adjective. It describes something that is moving or happening quickly.
fast moving
fast
moving fast in Japanese is "subayai"
The distance it covers in a unit of time.
Velocity, or Speed
Fast moving stream
Relative speed is the speed between two moving objects with no regards to a fixed reference. Speed is how fast something is moving with respect to an object.
How fast molecules are moving. If they are moving fast its hot, but if they are moving slow it is cold
Fast moving electrons are equivalent to beta radiation.
Gas has fast moving particles.