And object's speed refers to a magnitude of movement in relation to something (often the ground or a stationary relative object). A Vector, usually represented by an arrow, shows a scalar (some magnitude or speed) and a direction. The scalar magnitude could be an object's speed. However, without a directional component, it's not a vector, simply a speed of scalar. Velocity IS a vector because velocity by definition includes a scalar (force/speed) AND a direction in which it is moving. Therefore Velocity is a Vector, but Speed is only part of what makes a Vector.
Example: Bob is running 10 mph North along a sidewalk. His velocity is 10 miles per hour North. A Vector drawing would show an arrow 10 units long pointing North along the sidewalk. It's speed is a flat 10 mph at that given moment, it is the scalar portion of the vector without the directional component.
As an addition, Acceleration is the rate of change in Velocity. So we have a Speed- 10 mph. Then we have Velocity- 10 mph North. Acceleration is what shows his velocity changing...
How quickly does he speed up at the beginning of his run...
How quickly does he slow down at the end...
At what rate does his direction/speed change as he turns a corner...etc.
because of the direction
Velocity and speed are not synonyms.
That is the case when you are talking about instantaneous speed and velocity - or when the velocity is constant. In the case of an average speed and velocity, this relation does not hold.
Velocity.
No. Velocity includes a direction vector, which speed does not have.
Speed is a scalar quantity (direction does not matter) and velocity is a vector quantity) ie velocity means speed in a specific direction. If you are changing direction (turning) in a car, your speed is the same, while your velocity changes.
speed or velocity = distance/time Speed does not require direction, i.e. it is a scalar quantity. Velocity does require direction, i.e. it is a vector quantity.
Velocity gives both speed and direction of an object. While speed is a scalar quantity, velocity is a vector quantity and require direction or bearing in order to be valid.
velocity is speed with direction; velocity is a vector and speed is a scalar
20 meters per second is the speed--velocity would require direction data, as well. Velocity is a vectored quantity.
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.
Well velocity is basically the same thing as speed but with direction (velocity can be negative or positive and speed is always positive). l velocity l = speed So a change in velocity means a change in speed.
Velocity is speed with a direction