A common mistake students make when figuring out acceleration is:

• Getting the formula mixed up: Many students confuse acceleration ($a$) with speed or velocity. Just remember this simple formula: $a = \frac{\Delta v}{\Delta t}$. Here, $\Delta v$ means the change in velocity, and $\Delta t$ is the time it takes for that change to happen.

• Not thinking about direction: Acceleration has a direction. So, when you are calculating, don’t forget to include which way you are moving!

• Using the wrong units: Sometimes students use incorrect units for time or distance. This can cause mistakes. Be sure to always double-check your SI units!