Solides, Liquids, Gas Flashcards
What are some examples of solids?
Some examples of solids include paper, bricks, wood, metal, and ice.
How are particles arranged in solids?
The particles in solids are arranged in a regular way, which gives solids a fixed shape and means that they cannot flow like liquids.
How do particles in solids move?
The particles in solids move only by vibrating about a fixed position.
Why can’t solids usually be compressed or squashed?
The particles in solids are very close together, and forces of attraction between the particles hold them together and keep them in place.
What happens to solids when they are heated?
The hotter a solid gets, the faster its particles vibrate, causing solids to expand when they are heated.
What are some examples of liquids?
Some examples of liquids include water, oil, fruit juice, and many others.
How are particles arranged in liquids?
The particles in liquids are arranged in a random way and are close together, touching many of their neighbors.
How do particles in liquids move?
The particles of a liquid have enough energy to break free of some of the forces of attraction between them, so they can move around and over each other, allowing liquids to flow and be poured.
Can sand be considered a liquid? Why or why not?
No, sand cannot be considered a liquid because each grain of sand has a fixed shape, even though they can roll over each other.
What are some examples of gases?
Some examples of gases include the air we breathe and the helium used to fill balloons.
How are particles arranged in gases?
The particles in gases are widely spaced and randomly arranged, meaning they can be easily compressed or squashed.
How do particles in gases move?
The particles in a gas have enough energy to overcome the forces of attraction between them, so they are free to move in any direction. They move quickly in straight lines, colliding with each other and the walls of their container.
Why is helium gas used to fill party balloons?
Helium gas is lighter than the mixture of gases that make up air. The lighter helium gas rises up, making the balloon float.
What is the empty space between particles in a gas called?
The empty space between particles in a gas is called a “vacuum” or “void”.
