Vocabulary
Particles that vibrate close together in substance
Solid
___________________ are made up of atoms that are chemically bonded together.
Molecules
Which of the following changes made to a sample of liquid would result in an increase in the distance between the individual molecules of the substance?
A) Transferring the substance to a smaller container
B) Adding heat energy to the substance
C) Changing the phase of matter from liquid to solid
D) Decreasing the overall kinetic energy of the liquid
B) Adding heat energy to the substance
The distinct form of matter
State
In a liquid, particles move within the substance constantly. The particles both __________ and ____________ with each other on a continual basis.
vibrate and collide
As thermal energy is added to a substance, which of the following changes can be predicted?
A) Spacing between particles will decrease
B) Vibration of individual particles will increase
C) Temperature of the substance will decrease
D) The pressure of the air around the substance will increase
B) Vibration of individual particles will increase
The basic unit of an element
Atom
Gases such as helium are ____________ because they do not react with other substances.
inert
Which of the following statements best describes the relationship between temperature and kinetic energy of particles in a substance?
A) As kinetic energy decreases, temperature is not affected
B) As kinetic energy increases, temperature decreases
C) As kinetic energy decreases, temperature increases
D) As kinetic energy increases, temperature increases
D) As kinetic energy increases, temperature increases
Particles move freely at a very fast speed
Gas
Changes in either _________________ or __________________ can cause a change in the state of matter.
When enough heat is added to liquid water, the water will change into which state?
A) Ice
B) Solid
C) Remain a Liquid
D) Gas
D) Gas
Particles move around and slide past each other in a given area
Liquid
Matter is anything that has ___________ and takes up ____________
has mass and takes up space
When a substance changes from a gas into a liquid, what has happened?
A) Heat has been removed
B) Heat has been added
C) The molecules have been sped up
D) The molecules have formed crystals
A) Heat has been removed