Sciences - Co-ordinated (Double) - 0654 CIE

Kinetic Particle Model Of Matter Continued

Gbogbo ọrọ náà

Everything around you is made of countless tiny particles in constant motion. This single idea, the kinetic particle model, explains why solids hold their shape, why gases push on their containers, and why a balloon shrinks in the cold. It even has visible evidence you can watch under a microscope.

In this lesson you will picture the arrangement and motion of particles in solids, liquids and gases, link temperature to particle energy down to absolute zero, explain gas pressure and Brownian motion in terms of collisions, and use \(pV=\text{constant}\) to predict how a gas responds to a change in volume.

Ebumnobi

  1. Describe the particle structure of solids, liquids and gases in terms of the arrangement, separation and motion of the particles and represent these states using simple particle diagrams
  2. Describe the relationship between the motion of particles and temperature, including the idea that there is a lowest possible temperature (−273 °C), known as absolute zero, where the particles have least kinetic energy
  3. Describe the pressure and the changes in pressure of a gas in terms of the motion of its particles and their collisions with a surface
  4. Know that the random motion of microscopic particles in a suspension is evidence for the kinetic particle model of matter
  5. Describe and explain this motion (sometimes known as Brownian motion) in terms of random collisions between the microscopic particles in a suspension and the particles of the gas or liquid
  6. Describe qualitatively, in terms of particles, the effect on the pressure of a fixed mass of gas of: (a) a change of temperature at constant volume (b) a change of volume at constant temperature
  7. Convert temperatures between kelvin and degrees Celsius; recall and use the equation T (in K) = θ (in °C) + 273
  8. [Supplement] Know that the forces and distances between particles (atoms, molecules, ions and electrons) and the motion of the particles affects the properties of solids, liquids and gases
  9. [Supplement] Describe the pressure and the changes in pressure of a gas in terms of the forces exerted by particles colliding with surfaces, creating a force per unit area
  10. [Supplement] Know that microscopic particles may be moved by collisions with light fast-moving molecules and correctly use the terms atoms or molecules as distinct from microscopic particles
  11. [Supplement] Recall and use the equation pV = constant for a fixed mass of gas at constant temperature, including a graphical representation of this relationship

Akọmọ Ojú-ẹkọ

The kinetic particle model is one of the most powerful ideas in physics: from it you can explain states of matter, temperature, pressure, expansion and the behaviour of gases, all from the picture of moving particles. It also gives examiners endless ways to ask 'explain in terms of particles', so the reasoning here is worth a great many marks.

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.

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Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Kinetic Particle Model Of Matter Continued. 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. In which state are the particles far apart and moving quickly in all directions? A. solid B. liquid C. gas D. all equally Answer: C
  2. Convert 27 C to kelvin: A. 246 K B. 300 K C. 273 K D. 327 K Answer: B
  3. A gas at 100 kPa and 0.6 m3 is compressed to 0.2 m3 at constant temperature. The new pressure is: A. 33 kPa B. 100 kPa C. 200 kPa D. 300 kPa Answer: D
  4. Gas pressure on a container wall is caused by: A. particles pushing each other B. particles colliding with the walls C. gravity on the gas D. the walls vibrating Answer: B
  5. Brownian motion of a smoke particle is caused by: A. heating the smoke B. air currents only C. collisions with fast-moving air molecules D. light from the microscope Answer: C

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 Kinetic Particle Model Of Matter Continued? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.

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