Difference between revisions of "Air Resistance"
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| style="height:20px; width:300px; text-align:center;" |The paper plane is [[streamline]]d so it does not have much '''air resistance''' and will keep going fast once you've thrown it. | | style="height:20px; width:300px; text-align:center;" |The paper plane is [[streamline]]d so it does not have much '''air resistance''' and will keep going fast once you've thrown it. | ||
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| style="height:20px; width:300px; text-align:center;" |A jet fighter can travel 6 times faster that a spitfire so it feels a lot more '''air resistance'''. | | style="height:20px; width:300px; text-align:center;" |A jet fighter can travel 6 times faster that a spitfire so it feels a lot more '''air resistance'''. | ||
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===Experiments=== | ===Experiments=== | ||
'''Air Resistance and Cupcake Cases''' | '''Air Resistance and Cupcake Cases''' | ||
| + | : Time how long it takes a single Cupcake case to fall from the ground from 1.5 metres high. | ||
| + | : Repeat this for two, three, four and five cupcake cases stacked together. | ||
| + | : This changes the weight without changing the shape of the object. | ||
| + | : If the difference is too small for meaningful results try 2, 4, 6, 8 and 10 cases. | ||
| + | : Plot the results on a [[scatter graph]] (not a line graph or bar chart). | ||
Revision as of 13:49, 31 August 2018
Key Stage 2
Meaning
Air Resistance is a force that slows objects down when they are moving through the air.
- Noun: Air Resistance
About Air Resistance
- Air Resistance can only happen to an object surrounded by air. It does not happen to objects underwater or in space.
- The amount of air resistance depends on:
- The size of an object.
- The shape of an object.
- How fast an object is moving through the air.
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| The van is smaller than the truck, so it feels less air resistance. | The truck is bigger than the van, so it feels more air resistance. |
 |
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| The scrunched up paper has a lot of air resistance and will slow down quickly when you throw it. | The paper plane is streamlined so it does not have much air resistance and will keep going fast once you've thrown it. |
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| A spitfire can travel at a speed of 160 metres per second. | A jet fighter can travel 6 times faster that a spitfire so it feels a lot more air resistance. |
Experiments
Air Resistance and Cupcake Cases
- Time how long it takes a single Cupcake case to fall from the ground from 1.5 metres high.
- Repeat this for two, three, four and five cupcake cases stacked together.
- This changes the weight without changing the shape of the object.
- If the difference is too small for meaningful results try 2, 4, 6, 8 and 10 cases.
- Plot the results on a scatter graph (not a line graph or bar chart).