Welcome to the Quiz!
This quiz contains 17 questions from a mix of 1 subtopics.
Which theory attempts to explain the three states of matter?
Particle (kinetic) theory
Condensation theory
Nuclear theory
|
The particle model (sometimes also called the kinetic model) has 3 main assumptions. These are that the particles are: |
Large Small
|
Elastic Inelastic
|
Cubes Spheres
|
|
heated / cooled / vibrate / liquid / gas / melts / boils
In solids, strong attractive forces hold the particles in place, so that they can only in position.
As the substance is the particles gain energy and vibrate faster and faster. Eventually, the particles have so much energy that they can overcome the forces holding them together and the substance into a .
|
When a solid is heated, energy is transferred to the particles' ________ energy stores, which causes them to vibrate faster.
thermal
elastic
chemical
kinetic
|
freeze / boil / melt
As heat is applied to a liquid, the particles gain kinetic energy and move faster. With enough energy they can break the forces of attraction between the molecules. At this point the liquid would into a gas.
|
When a gas is heated, the particles gain energy and move faster.
If the gas is trapped within a container that cannot expand, it means that the of the gas is fixed, and so the inside the container increases.
|
In gases, the particles have enough energy to overcome the attractive forces between them, and so spread out randomly.
If the temperature is lowered, they will no longer be able to overcome these attractive forces, and the particles move closer together, and turn into a liquid.
This process is called ________.
melting
boiling
condensation
freezing
|
The temperature at which a solid converts into a liquid is called the point.
The temperature at which a liquid converts into a gas is called the point.
|
Which state of matter matches each of the descriptions below?
Solid / Liquid / Gas
- Strong forces of attraction between particles:
- Weak forces of attraction between particles:
- Very weak forces of attraction between particles:
|
When a gas is heated, which of the following statements are true?
(Select all that apply)
If it's in a fixed container the pressure will increase
If it's in an expandable container the volume will increase
If it's in a fixed container the volume will increase
If it's in an expandable container the pressure will increase
|
In a closed system, changes in state won't change the mass at all.
Why is this the case?
The velocity of the particles remain the same
The bonds between the particles remain the same
The number of particles remains the same
|
Which state has the lowest density?
Liquids
Gases
Solids
|
"When heat is added, the particles move around faster and have enough energy to break the bonds altogether."
Which change of state does this describe?
Melting
Boiling
Condensing
Freezing
|
"Particles are arranged in a regular lattice structure and can only vibrate in place."
Which state of matter does this describe?
Solid
Liquid
Gas
|
"When heat is lost, the particles won't have enough energy to overcome forces of attraction. Thus, bonds start to form between the particles."
Which change of state does this describe?
Boiling
Melting
Condensing
|
Which state of matter matches each of the descriptions below?
Solid / Liquid / Gas
- Has a definite volume and shape:
- Has a definite volume but can be any shape:
- Does not have a definite shape or volume:
|
Which change of state is being described below?
"As heat is added to a system, the particles vibrate more and more until they have enough energy to break free of their bonds. This allows the particles to move freely."
Melting
Freezing
Boiling
|