Physics Thermal Physics 3.1 - 3.2

Question 1

What is particle or kinetic theory

Answer 1

Particle or kinetic theory helps us explain how particles behave in different states

Question 2

Name 4 properties of solids

Answer 2

They’re arranged in a regular lattice
They have high density
They have high forces of attraction between each particle
They have a definite shape and volume

Question 3

Name 4 properties of liquids

Answer 3

They have a lower density than solids
Particles are free to move
They have an indefinite shape and definite volume
They have weak forces of attraction between each particle

Question 4

Name 4 properties of gases

Answer 4

They have little to no forces of attraction
They have the lowest density
They have an indefinite shape and volume
Particles move in any direction

Question 5

Explain why temperature increases the pressure in a container

Answer 5

Temperature increases the pressure in a container because the kinetic energy of each particle is increased which increases the amount of collisions with the walls of the container which increases the pressure

Question 6

Explain why concentration increases the pressure in a container

Answer 6

Concentration increases the pressure in a container because there will be more collisions due to the increased amount of particles meaning the pressure would increase

Question 7

Explain why pressure increases as the volume of an inelastic container decreases

Answer 7

There will be more collisions due to the shrinkage of the container meaning the pressure would increase