Unit 2 - Motion of Matter

2a - Representing Motion of Matter

Particle diagrams for the states of matter

Evidence of particle motion in liquids

Reading related to the motion of gases and the popcorn experiment: What is a smell?

Practice work:

2a Worksheet 1.pdf
2a WS 1 Key.pdf
2a Worksheet 2.pdf
2a WS 2 Key.pdf

You should be able to:

  • Depict the motion of matter for gases, liquids, and solids
  • Describe the properties of the three phases of matter
    • Solids have a fixed size and shape at a constant temperature
    • Liquids have a fixed size, but no fixed shape at a constant temperature (they flow)
    • Gases don't have a fixed size or shape (they fill the space of whatever container they're in)
  • Explain and apply the relationship between motion of matter and temperature (higher temps, faster particles)
  • Depict how temperature affects the motion of matter using a particle diagram
  • Predict the large-scale effects of temperature change based on ideas of particle motion

2b - Properties of Gases

2b Worksheet 1.pdf
2b WS1 Key.pdf
2b Worksheet 2.pdf
2b WS2 Key.pdf
2b Worksheet 3.pdf
2b WS3 Key.pdf

You should be able to:

  • Describe pressure of gases as a measure of how often and how hard particles collide
  • Explain how the atmospheric pressure works to suspend a column of liquid in a barometer
  • Explain how a straw works and how the atmosphere pushes matter into a vacuum
  • Explain how changing volume, temperature, and number of particles affects the pressure of a gas
  • Calculate changes in pressure of a gas when there's a change in number of particles or volume
  • Calculate changes in volume when there's a change in pressure or number of particles
  • Sketch particle diagrams that correspond to the changes in properties of a gas
  • Explain the significance of Absolute Zero in relation to particle motion
  • Convert temperatures from degrees Celsius to Kelvin
  • Predict changes in pressure based on changes in temperature when measured in Kelvin