Solids
Use the words "Definite" or "Indefinite" to describe the SHAPE and VOLUME of solids.
Definite Shape
Definite Volume
Use the words "Definite" or "Indefinite" to describe the SHAPE and VOLUME of liquids.
Indefinite Shape
Definite Volume
Use the words "Definite" or "Indefinite" to describe the SHAPE and VOLUME of gases.
Indefinite Shape
Indefinite Volume
A phase change is a.....
A) reversible chemical change
B) reversible physical change
C) irreversible physical change
D) irreversible chemical change
B) reversible physical change
Which state of matter has the lowest kinetic energy?
solids
Which of these describe the arrangement of particles in a Solid?
A) random, loosely packed
B) orderly, tightly packed
C) disorderly, spread far apart
B) orderly, tightly packed
Which of these describe the arrangement of particles in a Liquid?
A) random, loosely packed
B) orderly, tightly packed
C) disorderly, spread far apart
A) random, loosely packed
Which of these describe the arrangement of particles in a Gas?
A) random, loosely packed
B) orderly, tightly packed
C) disorderly, spread far apart
C) disorderly, spread far apart
What do we call the phase change when a liquid becomes a solid?
freezing
Which state of matter has the weakest force of attraction among particles?
gases
Which of these describe the movement of particles in a Solid?
A) vibrate in fixed locations
B) move rapidly in straight lines, bouncing off other particles
C) flow freely around other particles
A) vibrate in fixed locations
Which of these describe the movement of particles in a Liquid?
A) vibrate in fixed locations
B) move rapidly in straight lines, bouncing off other particles
C) flow freely around other particles
C) flow freely around other particles
Which of these describe the movement of particles in a Gas?
A) vibrate in fixed locations
B) move rapidly in straight lines, bouncing off other particles
C) flow freely around other particles
B) move rapidly in straight lines, bouncing off other particles
Clouds form when water vapor cools down and forms into small droplets. What phase change is the creation of clouds an example of?
Condensation
What happens to the temperature of a substance during a phase change?
The temperature does not change
evaporation
Phase changes are considered _________ if they release energy into their surroundings.
Exothermic
Which phase changes are endothermic?
melting
vaporization
sublimation
What does the Kinetic Theory of Matter tell us?
All particles of matter are in constant motion