Gradient of a Graph: Common Mistakes and How to Avoid Them | Kinematics | IGCSE/O-Level Physics.

Gradient questions look easy, but they are one of the most common places students lose marks. In this lesson, you’ll learn how to calculate the gradient correctly, what it means on different graphs, and the pitfalls that cost marks in Cambridge exams. Gradient = change in y ÷ change in x = rise ÷ run You’ll learn: ✔ How to draw a large gradient triangle on the line ✔ Why you should use points on the line, not your data points ✔ How to read values using the scale, not by counting squares ✔ What a positive, negative and zero gradient mean Syllabus: Cambridge IGCSE Physics 0625 | O Level Physics 5054 | Motion and Practical Skills Timestamps 0:00 The mistake almost everyone makes 1:00 What is a gradient? 2:00 How to calculate it step by step 4:00 Pitfalls 1 to 3 5:30 Pitfalls 4 to 6 7:30 Recap Exam tip: Draw a large triangle (more than half the length of the line), show the values you read, write the equation, substitute and give the answer with its unit. This earns method marks even if you make an arithmetic slip.