states of matter Flashcards
1
Q
properties of solids
A
- cannot usually be compressed or squashed
- vibrate in fixed position
- cannot flow like liquids
- hotter solid -> particles vibrate faster
- solids expand when hotter
2
Q
properties of liquids
A
- usually cannot be compressed or squashed
- some particles can break free of some of the forces of attraction between particles
- particles can move around and can move over each other
- can flow and be poured
3
Q
properties of gases
A
- easily compressed or squashed
- free to move in any direction
4
Q
structures of solids
A
- arranged in a regular way
- particles close together
- fixed shape
5
Q
structures of liquids
A
- arranged in random way
- close to each other
- some gaps
6
Q
structures of gases
A
- widely spaced
- randomly arranged
7
Q
melting
A
when solid is heated, it absorbs energy and melts into liquid
8
Q
boiling
A
if liquid is heated, it absorbs more energy and boils into gas
9
Q
evaporating
A
liquid turning into gas slowly, at temperatures below boiling point
10
Q
freezing
A
liquid cooled transfers energy to surroundings -> turns into solid
11
Q
condensing
A
gas cooled transfers energy to surroundings and turns into liquid
12
Q
temperature and pressure on gas
A
- gas heated -> gas pressure increases -> particles move more quickly
- hit walls of container harder + more often
- gas pressure = force exerted by gas particles
