Particle Model Of Matter Flashcards
(6 cards)
1
Q
What are solids?
A
Solids- strong forces of attraction hold the particles close together in a fixed and regular pattern
2
Q
What are liquids?
A
Liquids- there are weaker forces of attraction between the particles. These particles are close together but can move past each other and form irregular patterns
3
Q
What are gases?
A
Gases- there are almost no forces of attraction between the particles. The particles have more energy than in liquids and solids- they’re free to move, and they move at various speeds and directions
4
Q
What creates pressure?
A
Pressure is created by gas particles colliding into each other
5
Q
What is the equation for density?
A
Density= mass divided by volume
6
Q
Who discovered the electron particles?
A
J.j Thompson
