Age range: 16+
Duration: 0 - 29 mins
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  • Maths

Pulleys

Forces in equilibrium

In this practical activity there are three hanging objects attached to a string that passes over two pulleys. The mass of one of the objects is unknown. Can you use your knowledge of mechanics to predict this mass? Do the calculations and then check your predictions.

This practical is designed to be easily set up and carried out in a maths classroom using simple equipment. It will help students to understand the mechanics topics of forces and Newton’s laws in A level Mathematics.

The video features the equipment needed and the practical procedure. The teacher notes contain additional guidance on carrying out the activity, sample calculations and suggested points for discussion, as well as an indication of some relevant real-life applications.

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Teacher notes

Pulleys - Forces in equilibrium activity description and teachers' notes.

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