Motion

Motion is the first stop in physics and the place where good habits with formulas and units start. This topic covers speed, distance and time, then acceleration. For speed, the classic mistake is rearranging the formula the wrong way, dividing time by distance instead of distance by time, or leaving time in minutes when the answer needs seconds or hours. The formula triangle helps, but checking units helps more. Acceleration is the change in velocity divided by the time taken. Students often use the final velocity alone instead of the change, or drop the negative sign when something slows down. A negative acceleration is a real answer, not an error. Both pages connect closely to algebra: rearranging formulas is the same skill as isolating x, and the slope of a distance-time graph is the speed. Try the practice questions with units written at every step. It feels slow at first, but it catches more mistakes than anything else you can do.