Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Stack #32189
| Question | Answer |
|---|---|
| Constant | factors in an experiment that stay the same |
| Control | the standard for comparison, often the group that receives no iv |
| dependent variable | responding; the variable that changes as a result of the iv |
| independent variable | manipulated; that variable that changes as a result of the iv |
| hypothesis | make a prediction stating the effect of the iv on the dv |
| manipulated variable | iv |
| responding variable | dv |
| volume | the amount of space occupied by an object |
| metric unit for volume | liter or cm3 |
| mass | amount of matter; different than weight |
| metric unit for mass | gram |
| length | measures distance |
| metric unit for length | meters |
| weight | the gravitional pull on an object |
| metric unit for weight | newton |
| density | amount of matter packed into a given volume |
| metric unit for density | g/cm3 |
| 50 cm = ___ m | 0.5 |
| 25 cm = ___ dm | 2.5 |
| 2.5 Km = ____ m | 2,500 |
| 100 g = ____ mg | 100,000 |
| 1000.25 cg = ___ hg | 0.100025 |
| 3 dl = ___ ml | 300 |
| 1 cm3 = __ g = 1 ___ | 0 / mL |
| 50.84 L = ____ Kl | 0.05084 |
| Archimedes Principle | the buoyant force of an object in a fluid is equal to the weight of the fluid displaced by the object |
| buoyancy | the ability of a fluid to exert an upward force on an object |
| Bernoulli's Principle | as the velocity of a fluid increases, the pressure exerted by a force decreases |
| Venturi Effect | the faster a fluid moves, the less pressure it exerts (through narrow spaces) |
| Boyle's Law | If you decrease the volume of a container, the pressure of the gas will increase, provided the temperature doesn't change |
| Charles' Law | the volume of a gas increases with increasing temperature, provided the pressure does not change |
| Solid | definite shape and volume; tightly packed particles; not enough kinetic energy to move out of position; cannot be squeezed into smaller spaces |
| Liquid | definite volume; no definite shape; takes to the shape of their container; particles held close together; can move over and around each other; cannot be squeezed into a smaller place |
| Gas | no definite shape; no definite volume; particles have enough kinetic energy to separate completely from each other; can be squeezed into a smaller space |
| Plasma | exists only at very high temperatures; eletrically charged particles; 99.9% of the universe |
| Condensation | gas to liquid; temperature down |
| evaporation | liquid to gas; at temperatures below freezing; temperature up |
| vaporization | boiling at or above the boiling point |
| fusion | solid to liquid; melting; temperature up |
| solidification | liquid to solidl; freezing; temperature down |
| ionization | gas to plasma; temperature up |
| recombination | plasma to gas; temperature down |
| thermal expansion | almost all matter expands when heated and contracts when cooled |
| cyrstal | the arrangement of particles in repeating geometric patterns |
| kinetic theory of matter | all matter is made up of tiny particles in constant motion |
| physical changes | changes in matter that does not change its identity |
| chemical changes | the change of one substance in a material into another substance |
| physical properties | any characteristic you can observe without changing the substance |
| chemical properties | a characteristic of a substance that indicates if it can undergo a certain chemical change |
| heterogeneous mixture | an unevenly mixed mixture such as pizza |
| examples of heterogeneous mixtures | colloids or suspensions |
| homogeneous mixture | an evenly mixed solution such as rubbing alcohol |
| Law of Conservation of Mass | no mass is created nor destroyed during a reaction |
| unsaturated solution | a solution that can dissolve more solute at a given temperature |
| saturated solution | a solution that has dissolved all the solute that it can hold at a given temperature |
| supersaturated solution | a solution that contains more solute than it can hold when the temperature is dropped |
| solute | the susbtance being dissolved or broken down |
| solvent | the substance that dissolves the solute |
| solubility | the amount of solute that will dissolve in a solvent at a given temperature |
| atomic number | number of protons; number of electrons |
| atomic mass number | atomic weight; protons + nuetrons |
| chemical symbol | abbreviation of an element |
| nucleus | contain the protons and nuetrons |
| proton | positively charged particle found in the nucleus of the atom |
| nuetron | negatively charged particle found in the nucleus of the atom |
| electron cloud | the energy levels that form around the nucleus |
| electrons and their arrangement | electrons closest to the nucleus have less energy than electrons further from the nucleus; energy shell's max. electrons are 2, 8, 18, 32, 50, 72, 98 |
| group / family | vertical columns on the PT; this number is that same as the # of electrons in the outer energy level |
| period | row on the PT; tells the # of electron shells |
| metal | elements to the left of the stair step line; solids at room temp; shiny; ductile; malleable; good conductors |
| nonmetal | elements to the right fo the stair step line; gases at room temp. |
| metalloid | located along the stair step line; contains properties of both metals and nonmetals |
| quark | inside each proton and nuetron; 3 in each P or N |
| isotope | atoms of the same element that differ in the number of neutrons |
Created by:
larsenkm
Popular Science sets