# PHYSICS Q's

 How do you determine the force on a particle in an electric field? Force=charge of the particle x the magnitude of the field F=qE Fastest evaporating substance has the __________ vapor pressure highest Sound travels fastest through solids fastest, liquids and then air slowest how are frequency and period related? Period= 1/frequency they are inversely related Sound travels faster in _____ temps high What is the formula for the work done if you lift a mass from a to b? W=mg(change in height) Galvanic cells.... always have a positive standard EMF (electron motive force) Rapid processes are often adiabatic. Adiabatic means.... no heat is exchanged If an ion has 6 ligands attached to a metal, it is said to be..... in shape octahedral Lewis acids.... accept electron pairs Bronsted bases take a hydrogen proton ______ occurs at the cathode reduction (i.e. Al(3+) becomes Al the focal length of a sperical mirror is what? the focal length of a spherical mirror is one halth the radius of the curvature snells law says what na sin θa = nl sin θl the index of refraction of two substances are related by the sin angle of the normal the magnitude of an electic field on a point charge formula E = (kq)/r2 atomic number number of protons in a nucleus What do standard reduction potentials show? (i.e. a large, positive) a LARGE POSITIVE STANDARD REDUCTION POTENTIAL means that the thing will be REDUCED MORE EASILY so if the thing with the larger potential GAINS ELECTRONS in the reaction, that is more favorable The ANODE is the site of ___________ OXIDATION in a cell, current flows toward the negative end in a galvanic cell, electrons (not current) flow toward the positive end (current flows to the negative end) adiabatic Adiabatic heating or cooling of a gas results from pressure change. Work is done on or by the gas, but there is no heat transfer with the environment. Adding resistors in parallel...____________. the overall resistance of the circuit decreases under alpha decay the daughter nucleus.... has 2 fewer protons and two fewer neutrons what is the volume of one mol of ideal gas? 22.4 liters In an electrolytic battery the anode is _____ positive and the cathode is negative somatostatin a pancreatic enzyme that is made when there is alot of glucose in the blood and it makes the levels of both insulin and glucagon go down Authorshelleye1 ID26352 Card SetPHYSICS Q's Descriptionphysics Updated2010-07-15T18:56:37Z Show Answers