Fluids

• A fluid is any substance that can flow and can take the shape of its container
• Solid:

  • Particles are tightly packed
  • Particles do NOT move they vibrate
  • Solids keep their shape
• Liquid:

  • Particles are close together
  • Particles can flow and move past each other
  • A liquid assumes the shape of a container
• Gas:

  • Particles are spaced out with no pattern
  • Particles move freely and are high energy
  • A gas assumes the shape of a container
• Particle Theory of Matter:

  01: All matter is made up of particles

  02: All particles in a pure substance are identical (no two different pure substances have the same particles)

  03: All particles have space between them

  04: All particles are always moving – more energy (heat) produces more movement

  05: All particles are attracted to one another