The document provides a study guide for an upcoming energy test that covers physical properties of matter, expansion and contraction, and energy transfer. It defines key terms like particle and kinetic energy. For the physical properties section, it asks about the spacing of particles in solids, liquids, and gases, as well as their relative speeds of movement. It also explains that increasing kinetic energy through temperature changes can cause materials to expand through particles spreading out, while decreasing kinetic energy can lead to contraction.

1. Energy
Study-guide
Te st on Mon day !!

2. Physical Properties
The particles in a solid are spaced_______
The particles in a liquid are spaced_______
The particles in a gas are spaced _________
The particles in a solid move at a _________ speed
The particles in a liquid move at a _________ speed
The particles in a gas move at a __________ speed (they really
________ in place).

3. Expansion and Contraction
When the kinetic energy in particles increases,
they expand or spread apart, which causes
volume to increase, (can happen with increase in
temp)
When the kinetic energy in particles decrease,
they contract or move closer together, which
causes the volume to decrease (can happen with
decrease in temp)

4. General Stuff
What is a particle?
What is kinetic energy?
What are the physical properties of solids, liquid,
and gases? (think in terms of particles)

5. Energy transfer
I’m going to fully assess this on the next test.