WorksheetsParticlulate theory of matter
Total questions: 28
Worksheet time: 18mins
The force of attraction between particles of a solid can be described as:
Strong
Weak
Vibrant
Moderate
Brownian's motion BEST serves as evidence for which of the following?
Matter is made up of substances.
The particles are in constant motion.
There are forces of attraction and repulsion between particles.
There is space between the particles.
The Kinetic theory can be used to explain how solids, liquids, and gases differ in _____________ and ___________.
movement and arrangement
space and weight
movement and weight
energy and temperature
Dust Particles seen dancing in a beam of light is an example of_____________.
Diffusion
Brownian's motion
Osmosis
Particulate theory
A substance has a boiling point of 90°C. What changes occur when it is heated from 50°C to 120°C?
energy of particles increase; attractive forces decrease
energy of particles decrease; attractive forces increase
energy of particles increase; attractive forces increase
energy of particles decrease; attractive forces decrease
The three states of matter are represented by diagrams X, Y and Z. Which change occurs during condensation?
X to Y
X to Z
Y to X
Z to X
Which state of matter has particles that are somewhat close together and have enouch kinetic energy to slide past each other?
solid
liquid
gas
what causes brownian motion?
diffusion of smoke particles in the air
molecules in the air hitting the smoke particles
sublimation of smoke particles
smoke particles hitting the walls of the containers
Which statement about liquids is correct?
They have a fixed shape and a fixed volume.
They have a fixed shape but not a fixed volume.
They have no fixed shape but they do have a fixed volume.
They have no fixed shape and no fixed volume.
The particles of solids ________________
vibrate about their fixed postions
are able to slide over each other
move about freely at high speeds and in random direction
do not move
The particles of gases ________________
vibrate about their fixed postions
are able to slide over each other
move about freely at high speeds and in random direction
do not move
Arrange the strength of the forces of attraction between the particles of solids, liquids and gases from the strongest to weakest
(strongest) gases > liquids > solids (weakest)
(strongest) solids > liquids > gases (weakest)
(strongest) gases > solids > liquids (weakest)
(strongest) solids > gases > liquids (weakest)
What happens to particles of liquid when they are heated?
They slide over one another faster and move further apart
They slow down and compress
They stop moving
They slide over one another slower and move closer together
Why does solid has a fixed shape?
The particles are held by very strong forces of attraction. They can only vibrate about their fixed position. Hence, they have an orderly arrangement.
The particles are held by weak forces of attraction. They can move rapidly in all directions. Hence, they have an disorderly arrangement.
The particles are held by strong forces of attraction. They can slide over one another. Hence, they have an disorderly arrangement.
What is expansion?
An object increases in volume without a change in mass
An object decreases in volume without a change in mass
Why does the mass of matter not change during expansion or contraction?
The number of particles remains the same
The number of particles change
Which statement best describes the fact that gases can be compressed?
The particles in a gas do not have a fixed volume.
The particles in a gas are very far apart.
The particles in a gas have no force of attraction (bonds) between them.
The particles in a gas are constantly moving very rapidly.
When ice melts...
The mass of the water decreases during melting.
The mass of the water stays the same before, during and after melting.
The mass of the water is always changing.
The mass of the water increases during melting.
Particles are always moving.
True
False
Which of the following statements about the particle of a gas is true?
The particles of a gas vibrate and are packed closely together.
The particles of a gas are far apart and move in all directions.
The particles of a gas do not move.
Which of the following process is exothermic?
Candle was melting
A puddle evaporating
Dry ice (solid carbon dioxide) subliming to form gaseous carbon dioxide
Water freezing to form ice
Solid --> liquid --> gas is what type of reaction?
endothermic
exothermic
catalytic
inhibited
gas --> liquid --> solid is what type of reaction?
endothermic
exothermic
catalytic
inhibited
