Difference between revisions of "Lever"
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| + | ==Key Stage 2== | ||
| + | ===Meaning=== | ||
| + | [[File:CarJack.png|right|300px|thumb|A 'Jack' uses a lever and a piston to allow a person to lift a car.]] | ||
| + | A '''lever''' is a tool which can be used to make lifting easier. | ||
| + | |||
| + | ===About Levers=== | ||
| + | : [[Lever]]s 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. | ||
| + | |||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
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| style="height:20px; width:400px; text-align:center;" |A lever makes it easier to lift a heavy object. | | style="height:20px; width:400px; text-align:center;" |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=== | ||
| + | : [[Lever]]s 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]]. | ||
| + | |||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:Lever.png|center|400px]] | ||
| + | |- | ||
| + | | style="height:20px; width:400px; text-align:center;" |A lever makes it easier to lift a heavy object. | ||
| + | |} | ||
| + | |||
| + | ===Extra Information=== | ||
| + | {{#ev:youtube|https://www.youtube.com/watch?v=YlYEi0PgG1g}} | ||
| + | |||
| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | A [[lever]] is a [[Force Multiplier]] or a [[Distance Multiplier]] that uses a [[pivot]] to create a [[moment]]. | ||
| + | |||
| + | ===About Levers=== | ||
| + | : [[Lever]]s work as [[Force Multiplier|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]]. | ||
| + | |||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | |[[File:WheelbarrowLever.png|center|400px]] | ||
| + | |- | ||
| + | | style="height:20px; width:400px; text-align:center;" |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==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Lever, page 170, GCSE Physics; Student Book, Collins, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac277 ''Levers, page 57, GCSE Physics; The Revision Guide, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Levers, pages 120-122, 127, GCSE Physics; Third Edition, Oxford University Press, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Levers, pages 130-1, GCSE Physics, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Levers, pages 166, 167, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA ''] | ||
| + | |||
| + | ====Edexcel==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Levers, page 137, GCSE Physics, Pearson 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 ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945733/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945733&linkCode=as2&tag=nrjc-21&linkId=2a2dbec9db6bf5766c0458d908fa0a52 ''Levers, page 69, GCSE Physics; The Revision Guide, CGP, Edexcel ''] | ||
| + | |||
| + | ====OCR==== | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945687/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945687&linkCode=as2&tag=nrjc-21&linkId=9a598e52189317a20311d7a632747bc9 ''Levers, page 39, Gateway GCSE Physics; The Revision Guide, CGP, OCR ''] | ||
| + | :[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