Edexcel IGCSE Physics 1.11 effects of forces
Practise effects of forces by linking force direction to momentum changes, drawing competing arrows and naming the correct measuring device.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- Explain a force effect by linking changed speed or direction to changed momentum.
- Draw competing force arrows such as upthrust, weight or magnetic attraction on diagrams.
- Name a newton meter or force meter as a suitable device for measuring force.
1.11 Effects of forces question 1
The diagram shows a child's toy for accelerating steel balls.
This is how the toy works.
- the toy uses three identical steel balls, each with a mass of 4.1 g
- ball A moves towards the magnet
- ball B is in contact with the magnet
- balls B and C are initially at rest and are in contact with each other
- when ball A collides with the magnet, ball C moves away from the magnet
Ball A is attracted to the magnet.
Explain how this attraction affects the momentum of ball A as it approaches the magnet.
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