States of matter Flashcards
Solid
Vibrate in a fixed position
Highest density
Fixed volume
Regular arragement
Lowest kinetic energy
Strong forces of attraction to hold the particles close together
Liquid
Arranged randomly
The forces of attractions are weaker
Particles move past/around each other
Irregular arrangements
kinetic energy, lower than gas and higher than solid
Move in random directions at slow speed
High density
Gas
Arranged randomly
Travel in random directions at high speeds
Particles have the highest kinetic energy
Almost no forces of attraction
Low density
Describe physical changes
Do not make new substance
Mass is not conserved
Easily reversible (state changes)
What is density add equation
Density is how much mass a substance has per unit of its volume
Which state has the lowest density?
Gas