Lecture 2 Flashcards
What are protons and neutrons made of
Quarks
How is electrical stability maintained
Equal number of protons and electrons
Atomic number is
Defined by number of protons
Atomic mass
Mass of proton and neutrons combined
Smallest particle of a compound possessing characteristics of the compound
Molecule
Electromagnetic energy
Combination of electric and magnetic fields traveling through space
Unit for wavelength
Angstrom
Unit for frequency
Cycles per second hz
Equation for wave
V=frequency x wavelength
Unit for charge
Coulomb
Electrification can be created by
Friction, contact and induction
First law of electrostatics
Like charges repel, opposite attract
Second Law of electrostatics
Coulomb law, inverse square law
Third law of electrostatics
Charge is evenly distributed around surface
4th law of electrostatics
Charge centers around part of greatest curvature
Conduction
Transfer of heat through solid matter from a high temperature by molecular motion
Convection
Transfer of hot molecules in a gas or liquid
Thermal radiation
Method of transfer of heat through space where no matter exists at all and depends on the temperature of the object
Rate of change of the position of an object with time or the rate of motion
Velocity
Heat
Form of energy the kinetic energy of the random disordered motion of molecules. SI unit is calorie
