A metal spring is suspended vertically from a support and weights are added to its lower end. The extension of the spring increases until the limit of proportionality is reached.
If an additional small weight is then added, which of the following statements correctly describes the outcome?
The extension of the spring increases and the spring no longer obeys Hooke’s law.
The extension of the spring decreases and the spring no longer obeys Hooke’s law.
The extension of the spring increases and the spring continues to obey Hooke’s law.
The extension of the spring remains the same and the spring continues to obey Hooke’s law.
183 exam-style questions on CIE IGCSE Physics 1.5.1a Forces, resultant force and motion. Each one has a worked solution and a mark scheme showing where the marks go.