Physics: Solids, Liquids And Gases: Units
Muhtasari
Solids, liquids and gases are described by quantities that most other physics topics never touch: volume in cubic metres, pressure in pascals, and temperature on two different scales at once. Getting those units right is half the battle in this section.
In this lesson you will meet each unit used in solids, liquids and gases, see how the derived ones are built from the base units, practise the awkward conversions for area and volume, and learn to use units as a check that your working is sound.
Malengo
- Use the following units: degree Celsius, Kelvin (K), joule (J), kilogram (kg), metre (m), metre2, metre3, metre/second (m/s), metre/second2 (m/s2), newton (N) and pascal (Pa)
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- The SI unit of pressure is the: A) Newton B) Pascal C) Joule D) Kelvin Answer: B
- Absolute zero on the Celsius scale is: A) 0 degrees C B) 100 degrees C C) -100 degrees C D) -273 degrees C Answer: D
- To convert a volume in cm cubed into m cubed you: A) Divide by 100 B) Divide by 1000 C) Divide by 10 000 D) Divide by 1 000 000 Answer: D
- One newton is the same as: A) 1 kg m/s B) 1 kg m/s squared C) 1 kg/m squared D) 1 J/s Answer: B
- A temperature of 300 K is equal to: A) 27 degrees C B) 300 degrees C C) 573 degrees C D) -273 degrees C Answer: A
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Vitabu Vinavyopendekezwa
Jifunze zaidi kutoka vyanzo huria
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Sehemu ya kitabu
The Language of Physics: Physical Quantities and Units
Associate physical quantities with their International System of Units (SI)and perform conversions among SI units using scientific notation
"Physics: The Language of Physics: Physical Quantities and Units" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/physics/pages/1-3-the-language-of-physics-physical-quantities-and-units. Access for free at https://openstax.org/books/physics/pages/1-introduction
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