Changes of State Flashcards
1
Q
What are the three states of matter?
A
- solid
- liquid
- gas
2
Q
How can the difference between solids, liquids and gases be explained?
A
- By the particle model
3
Q
What are all substances made up of?
A
- Particles
4
Q
What kind of energy do particles produce when they move?
A
- Kinetic Energy
5
Q
How could the kinetic energy of the particles increase?
A
- If the temperature was raised
6
Q
How one can identify the solid state:
4
A
- particles are packed tightly together in a regular structure
- the particles vibrate but are not free to move
- a solid object has a fixed shape
- minimal expansion with heat
7
Q
How one can identify the liquid state:
4
A
- particles can move freely
- particles are close together
- fixed volume, minimal expansion with heat
- takes the shape of its container
8
Q
How one can identify the gas state:
4
A
- particles are widely spaced. move around rapidly and undergo high speed collisions with one another
- adopts size and shape of container
- expands when heated
9
Q
Why would a gas take up more space if it has been boiled from a liquid?
A
- The particles are much further apart
