What Is Matter Made Up Of Flashcards
(19 cards)
What is matter made up of?
Atoms and molecules
The amount of force on a given area of a substance
Pressure
The resistance to flow of a liquid
Viscosity
What is the force that acts on the top of a liquid
Surface tension
Tempiture
The speed at which particles move
Theoretically,all particle motion stops at what temperature
Zero or 273 .c
Liquid
Particles that are close together,but can slide past each other
3 states of matter
Solid,liquid,gas
3 states of matter in order of particle speed from fastest to slowest
- gas
- liquid
- solid
Charles law
When the TEMPERATURE of a gas increases the volume increases
Boyles law
When the PRESSURE on a gas decreases the volume increases
Is there more or less atmosphere (air) pressure the higher you go?
Less
Why is more helium needed in a ballon on a cold day?
The gas particles are moving slower and have less energy.
What are the 5 changes of state?
- melting
- evaporation
- freezing
- condensation
- sublimation
Exothermic change
Removing (exits) energy from a substance
Endothermic change
Adding (enters) energy to a substance
Are freezing and melting points of a substance same or difforent?
Same
Why can water boil at a lower temperature the higher you are above sea level?
Because there is less air pressure or atmosphere pressure
Are the the changes of states physical or a chemical change?
Physical chance