P3-particle model of the matter Flashcards
Information on solids in physics
Strong forces of attraction holds particles together in a fixed regular arrangement
The particles don’t have much energy so only can vibrate in their fixed positions
Information on liquid in physics
Weaker forces of attraction between particles
Particles are close together but can move past each other to form a regular arrangement
More energy than the particles in a solid
They live in random directions at low speed
Information on gases in physics
There are almost no forces
Particles have more energy than liquid and solid
Free to move
Moving random direction and at speed
How does colliding gas particles create pressure
Particles in gases are free to move around as they move they bang into each other and whatever else happens to get in that way
When they collide with something they exert a force on it
How does increasing the temperature of the gas increase its pressure
If you increase the temperature of the gas transfers energy into the kinetic energy store
And collision theory happens
What is internal energy in physics
Is the energy stored by the particles that make up the system
How does the particles in a system have kinetic energy store
Because the system vibrates or moves around
How does the particles in the system have potential energy stores
Because of their positions
What is the internal energy of a system
Is the total energy that its particles have in their kinetic and potential energy stores
What is the state where is substance goes from a solid to a liquid
Melting
What is the state where is substance goes from a solid to a gas
Sublimating
What is the state where is substance goes from a liquid to a solid
Freezing
What is the state where is substance goes from a liquid to a gas
Boiling or evaporating
What is the state where is substance goes from a gas to a liquid
Condensing
What is specific latent heat
Is the amount of energy needed to change 1 kg of of it from one state to another without changing its temperature
