Difference between revisions of "Action Force"
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: If [[weight]] is considered to be the [[Action Force|action force]] then the [[Normal Contact Force|normal contact force]] of an [[object]] on the ground can be considered the [[Reaction Force|reaction force]]. | : If [[weight]] is considered to be the [[Action Force|action force]] then the [[Normal Contact Force|normal contact force]] of an [[object]] on the ground can be considered the [[Reaction Force|reaction force]]. | ||
: If there were no [[weight]] the [[object]] would not stay in contact with the ground so the [[Reaction Force|reaction force]] would not longer exist without the [[Action Force|action force]]. | : If there were no [[weight]] the [[object]] would not stay in contact with the ground so the [[Reaction Force|reaction force]] would not longer exist without the [[Action Force|action force]]. | ||
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| + | ===References=== | ||
| + | ====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 ''Action-reaction forces, pages 22, 132, GCSE Physics, Pearson Edexcel ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Action-reaction forces, pages 306, 374, GCSE Combined Science, Pearson Edexcel ''] | ||
Revision as of 10:58, 29 October 2019
Key Stage 4
Meaning
An action force is a force which is applied to an object by an action.
About Action Force
- Newton's Third Law states that "For every action force there is a reaction force with an equal magnitude but acting in the opposite direction".
- The terms 'action force' and 'reaction force' may sometimes be misleading as forces always act in pairs.
- If weight is considered to be the action force then the normal contact force of an object on the ground can be considered the reaction force.
- If there were no weight the object would not stay in contact with the ground so the reaction force would not longer exist without the action force.