lecture 2

Question 1

trough

Answer 1

bottom part of the wave

Question 2

wavelength (symbol looks kind of like an X)

Answer 2

linear distance covered before a wave starts to repeat itself (crest to crest or trough to trough)

Question 3

low frequency wave

Answer 3

higher wave length (longer)

Question 4

high frequency wave

Answer 4

lower wave length, short and choppy

Question 5

frequency (v)

Answer 5

number of times a wave repeats itself per second

Question 6

formula for frequency and wavelength

Answer 6

c = (x)(v) or speed of light (3x10^8) = wavelength x frequency

Question 7

max planck

Answer 7

thought that heat radiated from a beated object is emitted in units - quanta

Question 8

emergy increases in:

Answer 8

discrete units. increases by a full quantum or not at all (stair comparison)

Question 9

energy equation

Answer 9

E = (h)(v) or Energy per Quantum = planck’s constant (6.63x10^-34) X frequency

Question 10

photoelectric effect facts

Answer 10

1) highly intense low frequency light does not eject any electrons.
2) when the threshold frequency is reached, electrons are ejected immediately
3) increasing the intensity of light at a freq. that’ll cause them to eject results in a higher common rate
4) increasing the freq. of light increases velocity of ejected electrons

Question 11

coulombs law

Answer 11

(q1)(q2)
F=k---------
           d^2
or
force of attraction=constant X magnitude of charge associated w a particle / distance between charged particles

Question 12

first ionization energy

Answer 12

minimum amount of energy required to remove the outermost, least tightly held electron from an atom in the gas phase

Question 13

crest

Answer 13

top part of a wave