Spring Extension Required Practical: Hooke's Law, k and Work Done | GCSE Physics

The GCSE Physics force and extension practical, animated step by step: a spring hanging from a clamp stand beside a vertical metre rule, a pointer taped to its end and read at eye level, and 100 g masses added one at a time (weight = mg, so about 1 N each). Extension = length − original length, the results table filling row by row, then the force–extension graph: a straight line through the origin, the point that bends away at the limit of proportionality, and linear vs non-linear. The spring constant from the gradient (k = 5.0 N ÷ 0.200 m = 25 N/m, and the centimetres mistake), Edexcel's work done from the area under the graph (0.50 J, checked with ½ke²), errors and improvements, safety, and a 6-mark exam-style question answered point by point. Covers: AQA required practical 6 (Combined Science 18) · Edexcel core practical 15.6 · OCR PAG P2 (Foundation and Higher, Combined and separate Physics). 0:00 Intro 0:08 Aim 0:58 Apparatus 1:30 Method 2:22 Results 3:19 The graph 3:59 The spring constant 4:40 Work done 5:25 Errors, improvements and safety 6:23 Exam question 7:23 Summary Narrated with an AI voice. Worked Example is not affiliated with or endorsed by AQA, OCR or Pearson Edexcel. Exam board names are used only to show which specifications a video covers.