Particles Flashcards
(41 cards)
What do all particles have?
Hint: to do with moving
Kinetic energy
Kinetic energy ________ with temperature
Increases
In a ______,the particles vibrate around fixed positions. There is a ______ force of attraction between each particle and they are very ____ together.
Solid
Strong
Close
In a ______ the particles are _____ together but can move in ____ direction. They won’t keep a ______ shape like _______ do.
Liquid Close Any Fixed Solids
In a ____, the particles are very ___ apart and move ______ in ___ directions. They often _______ with each other.
Gas Far Quickly All Collide
What is ‘how heavy is an object is for its size’ called?
Density
If something weighs _____ than the same amount of water does, it can basically push the water out of the way. We say it is more _____ than water, so it will ____ in water.
More
Dense
Sink
If something weighs _____ than the same amount of water does, we say it is ___ dense than water, so it will ____ in water.
Less
Less
Float
Particles move from an area of ___ concentration to ___ concentration. This is called ________.
High
Low
Diffusion
What is caused by the particles in a gas colliding with the wall of the container?
Pressure
If the temperature is ___________, the particles move faster, therefore they will collide more often (and harder) and the pressure ________. The opposite is also true.
Increased
Increases
If a container is made sandalled (with no gas leaking out), the pressure will _______ because the particles will collide with the container more often.
Increase
If a metal sphere was heated over a Bunsen burner, what would happen to it and why?
It would expand because the particles are being given more energy so they will collide with the wall more often and make it expand.
HEAT DOES NOT ____. But ______ liquids and gases do.
Rise
Hotter
What is a fluid?
A liquid or a gas
The heated particles in the liquid or gas gain energy, so they move about ____ and therefore spread out. The same number of particles now takes up more space, so the fluid has become ____ dense. Less dense fluids ____ and more dense fluids ____. This sets up a __________ current.
More Less Rise Sink Convection
Something is only pure if it contains ___ type/s of substance (often __________ joined).
One
Chemically
A _______ is two or more substances that are mixed together but not chemically joined (impure substances)
Mixture
A ________ is a special type of mixture that is made when a _____ dissolves in a ______.
Solution
Solid
Liquid
What is the solid which dissolves called?
The solute
What is the liquid that does the dissolving called?
The solvent
What does insoluble mean?
A solid which can’t be dissolved.
If a solid is insoluble, it is easy to separate by _________ the mixture.
Filtering
To separate a soluble solid from a liquid, ___________ can be used.
Evaporation
