Topic 1-2
What are the three states of matter?
the three states of matter are solid, liquid, and gas.
What does evaporation mean?
Evaporation is the transfer of liquid to gas.
How do you calculate density?
Density=mass/volume
what is the difference between hydraulics and pneumatic?
hydraulics use liquids pneumatic use gases
What does distillation do?
heats up liquid to vaper then condenses it again
which state of matter has no definite shape or volume.
A gas has no definite shape or volume.
What is viscosity?
The state of being thick due to internal friction.
what instrument measures liquid density?
hydrometer
What is the formula for pressure?
p=f/a or pressure= force / area
what is osmosis?
The diffusion of water through a semipermeable membrane
what is the rate of dissolving?
How fast a solution dissolves.
What is filtration?
The process of filtering something.
what is the scientific way definition of gravity?
the neutral force that causes an object to move to the center of the earth
what is the unit for pressure?
pascals
how do you pronounce the word chlorofluorohydrocarbons?
CLOR-O-FLOOR-O-HYDRO-CAR-BONS
What is the change of state called from gas to solid?
It is called sublimation
how fast something goes
What liquid is dense enough to hold up a solid iron bolt?
Liquid mercury
what is a compressor?
devices that compress air
would Mme Afaganis want to eat a viscous side on a food or a less viscous side on a food ?
viscous
(if you asked Mme Afaganis, you are bad)
what is the difference between Homogeneous and Heterogeneous mixtures
Homogeneous mixtures appear to be one substance and heterogeneous are two or more substances
What liquid is less viscous than water?
baby oil
What is the Archimede's principle?
The buoyant force acting on an object equals the weight of the fluid displaced by the object.
How thick is the earths atmosphere
about 160 km thick
True or false?, fog is not a colloid
false