Electrostatic & Energy ch.3 Flashcards
what travels in a straight line
waves
the distance between individual crests and troughs
wavelength
the number of times that wave happens
frequency
long distance and low frequency =
little energy
short wavelength =
high frequency and a lot of energy
wilhelm roentgen
discovered xrays in 1896
electron being added/subtracted from object
electrostatics
object is electrified in what 3 ways
contact, friction, induction
conductors
water and copper
insulators
rubber, plastic, glass
electrical current as package or quantity of electrons flowing within a period of time
amp
used in radiology to regulate a number of electons used to xray photons
milliamperes
force that draws electrons from an area in excess to an area deficient in electrons
electromotive force
electromotive force measures through ___
volt
potential difference
measurement of full vs measurement of empty