Speed is a scalar quantity that represents how fast an object is moving, whereas velocity is a vector quantity that includes both the speed and the direction of motion. The distinction is important because two objects can have the same speed but different velocities if they are moving in different directions.
In common language, the terms "velocity" and "speed" are used interchangeably. In physics, "velocity" is a vector, and "speed" is not - meaning that when the word "velocity" is used, it specifies not just how fast something moves, but also in what direction.
That would be "velocity", not "valocity". In physics, the term "velocity" is used when the direction is considered relevant; a "speed" is only the amount, without specifying a direction. (In everyday speech, the two terms are often used interchangeably.)
In common language, the terms are used interchangeably. But in physics, speed is a scalar; velocity is a vector. That is, a speed is just a number (and a unit) - for example, 50 kilometers/hour. But when it is important to distinguish a direction, you talk about a velocity. For example, "50 kilometer/hour to the north". Velocity is a speed AND a direction. "50 km/hour north" and "50 km/hour east" are the same speed but different velocity.
By definition, velocity is a rate of movement combined with a direction. Speed is, by definition, just a rate of movement independent of direction. 480 MPH at 32 degrees magnetic = velocity 63 MPH = speed The two are often used interchangeably in common speech but in physics there is a big difference.
Velocity differs from speed in that velocity includes the direction of movement in addition to the magnitude of speed. Therefore, velocity is a vector quantity that specifies both speed and direction, while speed is a scalar quantity that only represents the magnitude of motion.
yes. speed is velocity.
No; the change in velocity over time is called acceleration.Speed and velocity are used interchangeably in popular language; in physics, the word "speed" is used for a scalar (that is, when the direction is irrelevant), and "velocity" is used for a vector (that is, when you need both a magnitude and a direction).No; the change in velocity over time is called acceleration.Speed and velocity are used interchangeably in popular language; in physics, the word "speed" is used for a scalar (that is, when the direction is irrelevant), and "velocity" is used for a vector (that is, when you need both a magnitude and a direction).No; the change in velocity over time is called acceleration.Speed and velocity are used interchangeably in popular language; in physics, the word "speed" is used for a scalar (that is, when the direction is irrelevant), and "velocity" is used for a vector (that is, when you need both a magnitude and a direction).No; the change in velocity over time is called acceleration.Speed and velocity are used interchangeably in popular language; in physics, the word "speed" is used for a scalar (that is, when the direction is irrelevant), and "velocity" is used for a vector (that is, when you need both a magnitude and a direction).
In common language, the terms "velocity" and "speed" are used interchangeably. In physics, "velocity" is a vector, and "speed" is not - meaning that when the word "velocity" is used, it specifies not just how fast something moves, but also in what direction.
Speed is a scalar quantity and thus a general term; if a car is traveling at 60 mph that is its speed;Velocity is a vector quantity that has speed and direction associated with it. If a car is traveling at 60 mph due east that is its velocity.The two terms are often used interchangeably.
That would be "velocity", not "valocity". In physics, the term "velocity" is used when the direction is considered relevant; a "speed" is only the amount, without specifying a direction. (In everyday speech, the two terms are often used interchangeably.)
Because it is defined that way. In common language, the words "speed" and "velocity" are used interchangeably. But in physics, if a vector quantity is desired, the word "velocity" is used; for a scalar quantity, the word "speed" is used.
In common language, the terms are used interchangeably. But in physics, speed is a scalar; velocity is a vector. That is, a speed is just a number (and a unit) - for example, 50 kilometers/hour. But when it is important to distinguish a direction, you talk about a velocity. For example, "50 kilometer/hour to the north". Velocity is a speed AND a direction. "50 km/hour north" and "50 km/hour east" are the same speed but different velocity.
As used in physics, the two are different. Speed is a scalar, velocity a vector.
By definition, velocity is a rate of movement combined with a direction. Speed is, by definition, just a rate of movement independent of direction. 480 MPH at 32 degrees magnetic = velocity 63 MPH = speed The two are often used interchangeably in common speech but in physics there is a big difference.
Speed and velocity are the same in magnitude; but speed is a scalar and velocity a vector; a vector has magnitude and direction. For example if an object is moving with a speed of 100 mph in a certain direction its velocity is 100 mph in that direction. If it changes direction ate same speed and you want to compute distance traveled, etc., you would need to use vector addition. We sometimes use speed and velocity interchangeably which is fine for talking purposes.
It's not. Unless you add a direction to speed it will not become velocity. Since positive and negative are sometimes used to denote direction, absolute value of velocity may equal speed (certain situations)
Yes - just like any velocity, average velocity is a vector and has a direction associated with it. Speed, on the other hand is only an intensive property which has no specific direction associated with it. You could consider speed to be the magnitude of the velocity vector.