WPH13Topic 3.32 questions
Processing results: calculations, plotting graphs, finding gradients and relationships, and suggesting improvements.
Perform calculations, using the correct number of significant figures
Plot results on a graph using an appropriate scale
Use the correct units throughout
Comment on the relationship obtained from the graph
Determine the relationship between two variables or determine a constant with the aid of a graph, e.g. by determining the gradient using a large triangle
Suggest realistic modifications to reduce errors
Suggest realistic modifications to improve the experiment
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Original practice questions written in the style of the exam.
A student records the extension of a spring for different loads.
| Force / N | 1.0 | 2.0 | 3.0 | 4.0 | 5.0 |
|---|---|---|---|---|---|
| Extension / cm | 2.1 | 4.0 | 6.1 | 7.9 | 10.0 |
Using a graph of against , determine the spring constant of the spring in .