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Physics: Solids, Liquids And Gases: Units

Gbogbo ọrọ náà

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.

Ebumnobi

  1. 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)

Akọmọ Ojú-ẹkọ

A gas cylinder label might read 200 bar, a weather report might give 1013 millibars, and a physics question will expect pascals. A kettle boils at 100 degrees Celsius, but a gas law calculation will only work in kelvin. This section of the course leans on units more heavily than almost any other, because the same physical quantity is quoted in several different ways in everyday life. Learning the standard units, and how to convert into them, makes every later calculation in the topic straightforward.

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese
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Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Physics: Solids, Liquids And Gases: Units. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

  1. The SI unit of pressure is the: A) Newton B) Pascal C) Joule D) Kelvin Answer: B
  2. 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
  3. 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
  4. 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
  5. 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

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese
Onye inyeaka mmụta AI
Mụọ n'ụzọ na-enweghị ịntaneti, oge ọbụla, ebe ọbụla
Ọ dị na Android, Windows, macOS, na Linux

Ọ dị na ngwa Green Bridge

Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.

Akwụkwọ ndụmọdụ zuru oke nwere eserese
Onye inyeaka mmụta AI
Mụọ n'ụzọ na-enweghị ịntaneti, oge ọbụla, ebe ọbụla
Ọ dị na Android, Windows, macOS, na Linux

Meecha Ajụjụ Ule Ọmarịcha

Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Physics: Solids, Liquids And Gases: Units? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.

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