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Particle model
Explain the arrangement, spacing, and movement of particles in solids, liquids, and gases, and illustrate these states with basic particle diagrams.
8
Objectives
80
Flashcards
56
Questions
90 min
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CambridgeIGCSEPhysicsThermal physics
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Particle model outcomes8 objectives
- Explain the arrangement, spacing, and movement of particles in solids, liquids, and gases, and illustrate these states with basic particle diagrams.
- Discuss how particle motion relates to temperature, including the concept of absolute zero (-273 °C), where particles have minimal kinetic energy.
- Explain gas pressure and its variations in terms of particle motion and their collisions with surfaces.
- Recognize that the random movement of tiny particles in a suspension supports the kinetic particle theory of matter.
- Describe and clarify Brownian motion as the random collisions between microscopic particles in a suspension and surrounding gas or liquid particles.
- Understand that the forces and distances between particles (atoms, molecules, ions, and electrons) and their movement influence the characteristics of solids, liquids, and gases.
- Explain gas pressure and its changes based on the forces from particle collisions with surfaces, resulting in force per unit area.
- Recognize that microscopic particles can be influenced by collisions with fast-moving molecules and differentiate between the terms atoms or molecules and microscopic particles.
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