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WorksheetsSolids, Liquids, Gases, Phase Changes, Diagrams, Graphs
Total questions: 60
Worksheet time: 45mins
The temperature at which a solid begins to liquefy is its ______ point.
freezing
boiling
melting
mass
_______________ is an increase in the size of a substance when the temperature is increased.
kinetic energy
potential energy
thermal point
thermal expansion
According to the kinetic theory of matter, all matter is composed of
waves
particles
solid material
plasma
When the temperature of a substance is lowered, its particles
vibrate more quickly
stop vibrating completely
escape the attractive forces of the other particles
vibrate more slowly
Why can people on one side of a room smell the scent of an air freshener sprayed on the opposite side of the room?
The molecules of air freshener have thermally expanded
The air pressure where the freshener was sprayed is greater than in the rest of the room
The molecules of air freshener spread out until they are evenly distributed throughout the room
The molecules of air freshener are amorphous
An example of an amorphous solid is
glass
dry ice
liquid crystals
water
An example of a substance that can undergo sublimation is
glass
liquid crystals
water
dry ice (frozen carbon dioxide)
When a gas becomes a liquid it is called
condensation
evaporation
sublimation
freezing
What state of matter is X?
solid
liquid
gas
supercritical fluid
The pressure is increased on a sample of water at 0 °C from 0 mmHg to 800 mmHg. In order, what changes occur?
deposition, melting
sublimation, melting
condensation, freezing
deposition, freezing
Between which two points is the solid cooling?
A <---- B
B <----> C
C <---- D
D <----> E
E <---- F
Between which two points is the gas heating up?
A ----> B
B <---- C
C ----> D
D ----> E
E ----> F
Between which two points is the gas condensing?
A <---- B
B <---- C
C <---- D
D <---- E
E <---- F
What is happening to the particles in the substance between points A and B?
Melting
Freezing
Speeding Up
Slowing Down
Where on the graph are phase changes taking place?
1
2
3
4
5
What line segment represents only the solid state? (Diagram F)
A-B
B-C
C-D
D-E
Between which points is the temperature of the substance remaining constant? (Diagram F)
A-B only.
A-B, C-D, E-F
B-C only.
B-C, D-E
How long does it take this substance to change from a liquid to a gas? (Diagram E)
1 minute
2 minutes
10 minutes
15 minutes
Gas pressure in a closed container is caused by
gravity pulling on the particles
collisions of particles with each other
collisions of particles with the walls of the container
attractive forces between the molecules
The temperature of any substance is a measure of the average ________ of the particles.
kinetic energy
potential energy
heat content
calorie count
The temperature at which a substance has no kinetic energy is
-273 degree Celsius
zero Kelvin
absolute zero
all of these
Liquids have
definite volume
definite shape
neither definite shape or definite volume
both definite shape and definite volume
Gases can be compressed because the particles are
small
large
close together
far apart
The motion of the particles in a solid can be described as
constant, rapid, random motion
free to flow past each other
vibrate in place
no motion
Solids with a highly ordered structure are
frozen
amorphous
crystalline
molecular
Which particles will have the greatest energy?
Water liquid particles at 50oC
Water vapour particles at 50oC
Water liquid particles at 60oC
Water vapour particles at 60oC
Temperature is a measure of the average _____________ energy of the particles of a substance.
potential
kinetic
gravitational
heat
These atoms are in a...
solid.
liquid.
gas.
These atoms are in a...
solid.
liquid.
gas.
These atoms are in a...
solid.
liquid.
gas.
