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# Ressources éducatives > linear and projectile motion

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Video Physique

## Velocity Vectors

"A velocity vector represents the rate of change of the position of an object. The magnitude of a velocity vector gives the speed of an object while the vector direction gives its direction. Velocity ...

Video Physique

## Vector Direction

"A vector contains two types of information: a magnitude and a direction. The magnitude is the length of the vector while the direction tells us which way the vector points. Vector direction can be gi ...

Hipervinculo Physique

## Vector and Scalar Quantities

"A scalar quantity contains a magnitude and operates independently of direction while a vector quantity contains a direction. Most scientific data are scalar. A few examples of scalar quantities inclu ...

Video Mathématiques

## Instantaneous Velocity

"Instantaneous velocity is the velocity of an object in motion at a specific point in time. This is determined similarly to average velocity, but we narrow the period of time so that it approaches zer ...

Video Physique

## Graphs of Motion

"The two most commonly used graphs of motion are velocity (distance v. time) and acceleration (velocity v. time). In each case, time is shown on the x-axis. The graph of velocity is a curve while the ...

Hipervinculo Physique

## Speed - Instantanous Speed

"Speed refers to the rate at which an object travels. Unlike velocity, speed is a scalar quantity so direction does not matter. Instantaneous speed is the speed of an object in motion at a specific po ...

Video Physique

## Free Fall

"An object is in free fall when gravity is the only force to move it through space. In reality, free fall is affected by variables such as wind iance, but when physicists discuss free fall, they gener ...

Video Physique

## Relativity in Motion

"The motion of any object is only meaningful when given relative to something else. Relativity in motion assures us that the laws of Physics don't vary depending on how much inertia an object has. Thi ...

Video Physique

## Displacement

"Displacement is the change in a position vector. It is not the same as distance, which is a scalar measurement. The net vector of multiple displacment vectors if found according to the rules of vecto ...

Video Physique

## Projectile Motion

"When an object is moving through space this object is called a projectile. Examples of projectile motion include a pen falling off a table, a ball thrown through the air or a cork shot from a champag ...

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