Font size
WorksheetsChanges of state
Total questions: 26
Worksheet time: 27mins
A solid is a state of matter that has a(n)
Indefinite volume and an indefinite shape.
Definite volume and a definite shape.
Definite volume and an indefinite shape.
Indefinite volume and a definite shape.
In which state of matter are particles packed tightly together in fixed positions?
Gas
Solid
Liquid
Plasma
The state of matter in which particles are arranged in either a crystalline or an amorphous form is
Liquid
Solid
Gas
Plasma
Particles of a liquid
Are tightly packed together and stay in a fixed position
Have no viscosity
Decrease in volume with increasing temperature.
Are free to move in a container but remain in close contact with one another
In which state of matter do the particles spread apart and fill all the space available to them?
Plasma
Liquid
Solid
Gas
The change from liquid to solid, or the reverse of melting, is called
Condensation
Boiling
Sublimation
Freezing
The freezing point of water is the same as its
Melting point
Boiling point
Sublimation point
Evaporation point
What is vaporization?
Gas becoming liquid
Liquid becoming solid
Gas becoming solid
Liquid becoming gas
Which state of matter undergoes changes in volume most easily?
Solid
Liquid
Gas
Plasma
The greater the speed of gas particles in a container, the
fewer collisions there will be
lower the temperature.
greater the pressure.
lower the pressure
During the process of sublimation
a solid turns directly into a gas
a solid turns into a liquid.
a gas turns directly into a solid.
a liquid turns into a gas.
In which of the following pairs of characteristics of an element are the temperatures the same?
boiling point and freezing point
condensation point and melting point
freezing point and condensation point
melting point and freezing point
Which of the following will occur as the speed of the molecules in a substance increases?
The substance will become cooler.
The substance will begin to take up less space.
The force of attraction between the molecules will decrease.
The force of attraction that draws objects to Earth will increase.
The picture shows how the temperature of a substance changed as it was heated. Which segment of the graph indicates that the substance was undergoing a change of state?
1
2
3
4
5
An uncovered pot of soup is simmering on a stove, and there are water droplets on the wall above the back of the stove. What sequence can you infer has occurred?
melting, then boiling
freezing, then thawing
vaporization, then condensation
condensation, then vaporization
When a person wearing glasses enters a warm house after being outside on a cold day, their glasses fog up because of
Vaporization
Condensation
Sublimation
Melting
The opposite of vaporization is
Evaporation
Freezing
Melting
Condesation
Which element is in a solid state at 250ºC
All
None
Iodine and Sugar
Sodium chloride and Sodium carbonate
Which of the substances would be in gas state at 0ºC?
Sugar
Water
Methane
Iodine
Which of the substances would be in liquid state at 150ºC?
Sodium Chloride
Water
Sodium carbonate
Iodine
Methane
Acetona´s fusion and boling point are -95°C AND 56°C respectively. Look at the following graph and heating curve and answer: what is the state of this substance at 0°C?
Solid
Liquid
Gas
Plasma.
What state of matter corresponds to this organization of particles?
Solid
Liquid
Gas
Ice
Water
What happens to the temperature during a phase change?
It increases
it decreases
it stays the same
Absolute humidity is
The amount of air in a specific volume
The amount of matter in a specific volume of air compared to the maximum it could contain
The amount of water vapor in a volumen of airx
The amount of water vapor compared to the maximum it could contain
Relative humidity
The amount of water vapor
The amount of water vapor compared to the maximum it could contain
The amount of water vapor in a volume of air
The humidity relative to the air
Saturatión point of air
The maximum matter that can be in the air
The amount of humidity the air has
The maximum amount of water vapor the air can have
The point where there can be more water vapor in the air
