Stretching springs
I can measure extensions of a spring for a good range of stretching forces.
Stretching springs
I can measure extensions of a spring for a good range of stretching forces.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Applying a force to a spring will make it extend (stretch).
- A range of masses suspended on a mass holder will produce constant and measurable forces on a spring.
- A set square ensures measuring scales are vertical.
- Diagrams show how equipment should be set up.
Keywords
Extension - The extension of a spring is the change in length.
Gravitational force - Masses will have a gravitational force that pulls them downwards.
Hanging masses - Hanging masses (weights) can be used to put a known force onto a spring.
Mass hanger - A mass hanger can be attached to a spring; adding masses to it causes the spring to stretch in a controlled way.
Common misconception
The length of the spring is equal to the extension of the spring.
Focus on the fact that forces cause the length of the spring to change and pupils are measuring the size of that change.
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
The change in length of an object when a force acts on it.
A force that pulls objects downwards due to their mass.
Metal discs used to produce forces on a spring.
This is used to attach masses to the end of a spring.
