Difference between revisions of "Absolute Zero"
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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 ''Absolute zero, page 35, Gateway GCSE Physics, Oxford, 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 ''Absolute zero, page 35, Gateway GCSE Physics, Oxford, OCR ''] | ||
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+ | ==Key Stage 5== | ||
+ | ===Meaning=== | ||
+ | [[Absolute zero]] is the theoretical [[temperature]] at which a [[system]] reaches its minimum possible [[energy]], corresponding to 0 [[Kelvin|K]]. | ||
+ | |||
+ | ===About Absolute Zero=== | ||
+ | |||
+ | *At [[absolute zero]], [[Molecule|molecular]] motion ceases. | ||
+ | |||
+ | *It is the baseline for the [[Kelvin]] [[temperature]] scale. | ||
+ | |||
+ | *[[Absolute zero]] is equivalent to -273.15°C. | ||
+ | ===Examples=== | ||
+ | |||
+ | *The coldest recorded [[temperature]] in a laboratory setting is a fraction of a [[kelvin]] above [[absolute zero]]. | ||
+ | |||
+ | *Space probes use devices cooled to near [[absolute zero]] to detect faint [[infrared]] signals. | ||
==Beyond the Curriculum== | ==Beyond the Curriculum== | ||
{{#ev:youtube|https://www.youtube.com/watch?v=W6aL9YyRx1A}} | {{#ev:youtube|https://www.youtube.com/watch?v=W6aL9YyRx1A}} |
Revision as of 16:42, 17 May 2024
Contents
Key Stage 3
Meaning
Absolute zero is the coldest possible temperature in the Universe.
About Absolute Zero
- Absolute zero is -273°C.
Key Stage 4
Meaning
Absolute zero is zero on the Kelvin scale and the coldest possible temperature in the Universe.
About Absolute Zero
- Absolute zero is -273°C.
- As a gas decreases in temperature it decreases in volume. Absolute zero is the temperature at which the volume of the gas would become zero.
- At absolute zero the pressure in a gas becomes zero.
- At absolute zero all the particles in material stop moving, they have no kinetic energy.
References
Edexcel
- Absolute zero, page 193, GCSE Physics, Pearson Edexcel
- Absolute zero, page 204, GCSE Combined Science; The Revision Guide, CGP, Edexcel
- Absolute zero, page 301, GCSE Physics, CGP, Edexcel
- Absolute zero, page 425, GCSE Combined Science, Pearson Edexcel
- Absolute zero, page 97, GCSE Physics; The Revision Guide, CGP, Edexcel
OCR
Key Stage 5
Meaning
Absolute zero is the theoretical temperature at which a system reaches its minimum possible energy, corresponding to 0 K.
About Absolute Zero
- At absolute zero, molecular motion ceases.
- It is the baseline for the Kelvin temperature scale.
- Absolute zero is equivalent to -273.15°C.
Examples
- The coldest recorded temperature in a laboratory setting is a fraction of a kelvin above absolute zero.
- Space probes use devices cooled to near absolute zero to detect faint infrared signals.