YR 9 - Particle model of matter Flashcards
1
Q
What is a solids:
- particle arrangement - amount of kinetic/internal energy - forces between particles - distance between particles - particle motion
A
- fixed, regular
- lowest amount of kinetic energy
- strong
- very small
- vibration only
2
Q
What is a liquids:
- particle arrangement - amount of kinetic/internal energy - forces between particles - distance between particles - particle motion
A
- takes size of container, irregular
- more kinetic energy than solid but less than gas
- weak
- small
- slow, move in random directions
3
Q
What is a gases:
- particle arrangement - amount of kinetic/internal energy - forces between particles - distance between particles - particle motion
A
- takes shape of container, irregular
- most kinetic energy (they move around freely, fast)
- very weak
- large
- fast, moves in range of speeds in a range of directions
4
Q
Finish the sentence:
The _____ a particle moves, the ______ its ____ energy
words: faster, slower, greater, less, kinetic, thermal, gravitational
A
The faster a particle moves, the greater its kinetic energy
words: faster, greater, kinetic
5
Q
Finish the sentence:
The _____ ____ particles are in a ____ or ____, the _____ their potential energy.
words: further apart, closer together, solid, gas, liquid, greater, weaker
A
The further apart particles are in a solid or liquid, the greater their potential energy.
words: further apart, solid, liquid, greater
6
Q
Do particles in gases have potential energy?
A
No, they only have kinetic energy and zero potential energy.
