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cw science

science chapter 3

What has a definite volume and shape? solids
What has definite volume but not shape? liquids
What has no definite shape or volume? gas
Besides solid, liquid, and gas, what are the other 2 states of matter? Plasma and Bose-Einstien condensate (BEC)
If something is faster than another, does it have more kinetic energy? yes
What is the kinetic theory of matter? particles in matter are constantly moving.
Explain what pressure is. force distributed over an area.
If there is more force what else is there more of? Pressure
Does temperature affect pressure? if so, why? yes, if you increase heat the pressure also increases.
What is Boyle's law? relationship between pressure and volume.
What is Charles' law? relationship between volume and temperature.
If you increase the number of particles in something what else increases? Pressure
What are melting and freezing examples of? phase changes
What characteristics do all phase changes share? Energy and Temperature
Energy can only do 2 things in a phase change. What are these 2 things? Energy can be released or absorbed.
What is endothermic change? When the object absorbs the energy
What is exothermic change? When the object releases the energy.
Give one example of an exothermic phase change. Water freezing is an exothermic phase change.
Created by: cam wentworth