Difference between revisions of "Lever"
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:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Levers, page 213, GCSE Physics, CGP, Edexcel ''] | :[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Levers, page 213, GCSE Physics, CGP, Edexcel ''] | ||
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| + | :[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Levers, pages 86, Gateway GCSE Physics, Oxford, OCR ''] | ||
Latest revision as of 16:35, 13 December 2019
Contents
Key Stage 2
Meaning
A lever is a tool which can be used to make lifting easier.
About Levers
- Levers are used to lift cars with a jack, pull out nails with a hammer and to break locks with a crowbar.
- A lever needs a long stiff rod and a pivot.
- A seesaw can work as a lever. If an adult sits close to the centre and a child sits at the far end, the child can lift the adult.
 |
| A lever makes it easier to lift a heavy object. |
Key Stage 3
Meaning
A lever is a Force Multiplier or a Distance Multiplier that uses a pivot to create a moment.
About Levers
- Levers are used to lift cars with a jack, pull out nails with a hammer and to break locks with a crowbar.
- A lever needs a long stiff rod and a pivot.
|
| A lever makes it easier to lift a heavy object. |
Extra Information
Key Stage 4
Meaning
A lever is a Force Multiplier or a Distance Multiplier that uses a pivot to create a moment.
About Levers
- Levers work as force multipliers by applying a force of effort at a greater distance from the pivot than the force of load.
- A lever needs a long stiff rod and a pivot.
 |
| The force of effort is 3 times further from the pivot than the force of load, so the effort is 3 times smaller than the load. |
References
AQA
- Lever, page 170, GCSE Physics; Student Book, Collins, AQA
- Levers, page 57, GCSE Physics; The Revision Guide, CGP, AQA
- Levers, pages 120-122, 127, GCSE Physics; Third Edition, Oxford University Press, AQA
- Levers, pages 130-1, GCSE Physics, Hodder, AQA
- Levers, pages 166, 167, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
Edexcel
- Levers, page 137, GCSE Physics, Pearson Edexcel
- Levers, page 213, GCSE Physics, CGP, Edexcel
- Levers, page 69, GCSE Physics; The Revision Guide, CGP, Edexcel