Grade 9 particle theory Flashcards
1
Q
3 common forms of matter
A
solid, liquid and gas
2
Q
The particle theory (5)
A
1) All matter is made up of tiny particles
2) Each pure substance has its own kind of particles
3) All particles attract each other
4) particles are always moving
5) particles w more energy move faster
3
Q
solids (5)
A
- no space between particles
- particles have low energy
- particles move slowly
- the force of attraction is high
- particles held tightly together
4
Q
liquids (4)
A
- moderate energy
- particles move at moderate speed, but force of motion is not strong enough to overcome FOA
- FOA is moderate
- small amts of space between particles, particles can tumble past each other
5
Q
gas
A
- high energy
- move quickly, the force of motion overcomes FOA
- FOA is weak
- lots of space between particles
6
Q
drawing a diagram of a solid
A
- movement mark things
- FOA is strong label
- low energy label
- no space between particles
7
Q
drawing a diagram of a liquid
A
- some space between particles
- small arrows (longer if liquid is hot and vice versa)
- fills space
- FOA is moderate, moderate energy labels
8
Q
drawing a gas diagram
A
- long arrows
- big space between particles
- FOA is low
- moderate energy
9
Q
define arranged
A
put (things) in a neat, attractive, or required order
10
Q
define expansion
A
the action of becoming larger or more extensive
11
Q
define contraction
A
the process of becoming smaller
