Visualize your physics variable and the differences between displacement, velocity, and acceleration. Click here to see a video lesson about the difference between a few scalars and vectors.

**Displacement (X)** is the change in an objects position. The **unit** for displacement is the **meter (m)** Displacement is a vector that includes position change and direction from the origin. The **origin** in the starting point.

**Velocity** **(v)** is the change in displacement over time. So if you are traveling at a velocity of +1 m/s you will travel a displacement of 1 meter forward per second. Because of this the **unit is meters per second or m/s**. So look at the various displacements in the animation to see what it means to change a displacement. See the different between a velocity of -1 m/s, -1 m/s, and 3 m/s. If you have changing motion velocity is not just v but **v _{i}** representing

**initial velocity**or

**v**representing

_{f}**final velocity**.

**Acceleration** **(a)** is a change in velocity over time. Because it is the change in meters traveled per second and the **unit is m/s/s or m/s ^{2}**. So if you are accelerating in the same direction then you will travel more meters in the next second. The picture on the right is showing you an acceleration of 0.5 m/s

^{2}. This means that every second the velocity increases by 0.5 m/s.

**Force** **(F)** has Newton (**N**) as its unit. One newton is derived or the same as one kg x m/s^{2 }which relates to mass and acceleration. Force is created by a push or pull. The main force equation is derived in Newton's Second Law in equation form F_{net }= ma.

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