A student tests three objects: a steel spring, a strip of plastic cut from a carrier bag and a rubber band.
She measures the length of each object before a force is applied, while a force of 4.0 N is applied, and after the force is removed.
The Table shows her results.
Table
| Object | Original length in cm\text{cm}cm | Length with force applied in cm\text{cm}cm | Length after force removed in cm\text{cm}cm |
|---|---|---|---|
| steel spring | 5.0 | 9.0 | 5.0 |
| plastic strip | 10.0 | 16.5 | 14.0 |
| rubber band | 8.0 | 15.0 | 8.0 |
Calculate the extension of the steel spring when the force is applied.
Give the object that showed inelastic distortion.
Justify your answer using data from the Table.
Describe the difference between elastic distortion and inelastic distortion.
Calculate the spring constant of the steel spring in N/m\text{N/m}N/m.
102 exam-style questions on Edexcel GCSE Physics 15.1 Forces and springs, covering 15.1.1 Elastic and inelastic distortion, 15.1.2 The spring constant, 15.1.3 Work done in stretching a spring, and 15.1.4 Linear and non-linear force–extension. Each one has a worked solution and a mark scheme showing where the marks go.