Difference between revisions of "Force"
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===Meaning=== | ===Meaning=== | ||
A '''force''' is something which can make an object; speed up, slow down or change shape. | A '''force''' is something which can make an object; speed up, slow down or change shape. | ||
| − | : | + | : [[Noun]]: '''Force''' |
| − | |||
===About Forces=== | ===About Forces=== | ||
: A '''force''' can make an object speed up. When you let go of a pencil it will fall because a '''force''' called [[weight]] is making it speed up. | : A '''force''' can make an object speed up. When you let go of a pencil it will fall because a '''force''' called [[weight]] is making it speed up. | ||
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | A '''force is an influence that can change the [[speed]], [[direction]] or shape of an [[object]]. | + | A '''force''' is an influence that can change the [[speed]], [[direction]] or shape of an [[object]]. |
| + | |||
| + | ===About Forces=== | ||
| + | : [[Force]]s can be split into two groups, [[Contact Force]]s and [[Non-contact Force]]s. | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | | style="height:20px; width:200px; text-align:center;" |'''Contact Forces''' | ||
| + | | style="height:20px; width:200px; text-align:center;" |'''Non-contact Forces''' | ||
| + | |- | ||
| + | | style="height:20px; width:200px; text-align:left;" | | ||
| + | : [[Friction]] | ||
| + | : [[Air Resistance]] | ||
| + | : [[Water Resistance]] | ||
| + | : [[Upthrust]] | ||
| + | : [[Driving Force]] | ||
| + | : [[Thrust]] | ||
| + | | style="height:20px; width:200px; text-align:left;" | | ||
| + | : [[Gravitational Force]] ([[Weight]]) | ||
| + | : [[Magnetic Force]] | ||
| + | : [[Electrostatic Force]] | ||
| + | |} | ||
| + | : [[Force]]s can cause an [[object]] to [[accelerate]]. | ||
| + | : A pair of opposing [[force]]s can twist, stretch or squash an [[object]]. This is known as [[deformation]]. | ||
| + | |||
| + | ===Representing Forces=== | ||
| + | : [[Force]]s can be represented in a [[diagram]] with arrows that show the [[magnitude]] and [[direction]] of the [[force]]. A bigger arrow means a bigger [[force]]. | ||
Revision as of 09:53, 13 October 2018
Contents
Key Stage 2
Meaning
A force is something which can make an object; speed up, slow down or change shape.
- Noun: Force
About Forces
- A force can make an object speed up. When you let go of a pencil it will fall because a force called weight is making it speed up.
- A force can make an object slow down. When you roll a ball on the carpet it will slow down and stop because a force called friction has slowed it down.
- A force can change the shape of an object. When you tip a spoon of honey the honey will change shape and stretch because a force called weight pulls it into a long shape before dripping.
Key Stage 3
Meaning
A force is an influence that can change the speed, direction or shape of an object.
About Forces
- Forces can be split into two groups, Contact Forces and Non-contact Forces.
| Contact Forces | Non-contact Forces |
- Forces can cause an object to accelerate.
- A pair of opposing forces can twist, stretch or squash an object. This is known as deformation.