Chapter 2 Test Flashcards
What is a solid
A state of matter with a definite shape and volume
How are particles arranged in a solid
tightly packed together in one position
What causes a solid to have a definite shape and volume
The closely packed arrangement of particles
Do particles in a solid move
Yes, they vibrate
What pattern creates crystalline solids
a regular repeating pattern
What is a crystalline solid
A solid made of crystals which melts at a distinct temp.
What pattern creates an amorphous solid
an irregular pattern
What happens when an amorphous solid is heated
it becomes softer and softer or change into another substance
What is a liquid
a state of matter with a definite/constant volume but no shape of its own
What type of pattern are liquids in
a tightly packed pattern where particles move freely
Why does a liquid not have a definite shape
because it’s particles move freely
What is a fluid
a substance that flow
What is surface tension
an inward force/pull among the molecules in a liquid that brings the molecules on the surface closer together
Due to surface tension the surface of water can act like a sort of ____
skin
What is viscosity
a liquid’s flowing resistance
What is viscosity dependent on
size and shape of the liquids particles and the attraction between particles
What are 2 states of matter that are fluids
gas and liquid
What is gas
a state of matter with an indefinite shape and volume
What is volume
the amount of space matter fills
How is the volume of gas determined
on the volume of the container its in
What is pressure
the outward force of gas
What is the formula to find pressure
P= Force/Area
Whatis concentration
the number of gas particles in a given unit of volume
What is temperature
the measure of the average energy of random motion of particles of matter
