Unit 7 And 8

Question 1

Lower wavelength =

Answer 1

Higher frequency

Question 2

Light with large frequency has (blank) E and (blank) v

Answer 2

Small

Question 3

Light with short frequency has a (blank) E and (blank) v

Answer 3

Large

Question 4

C =

Answer 4

Speed of light constant - 2.998 x 10^8

Question 5

Wavelength units

Answer 5

M or nm

Question 6

Frequency units

Answer 6

S^-1

Question 7

Energy units

Answer 7

J

Question 8

h units and what it stands for

Answer 8

Plancks constant - 6.626 x 10^-34 J/s

Question 9

Wavelength =

Answer 9

c / v

Question 10

The light from a yellow signal has a wavelength of 595 nm, and that from a green signal has a wavelength of 500 nm. Which has the higher frequency?

Answer 10

Green

Question 11

The elevations at which the doors of an elevator open is a what?

Answer 11

Quantized value

Question 12

If an electron jumps from its ground state to n= 3, energy is (blank), and the reaction is (blank).

Answer 12

Absorbed

Endothermic

Question 13

If an electron transitions from n=5 to n=4, energy is (blank), and the reaction is (blank)

Answer 13

Emitted

Exothermic

Question 14

What is the essence of the Heisenberg Uncertainty Principle?

Answer 14

We can’t know where an electron is AND where an electron is going at the same time.

Question 15

Finding deBroglie wavelength (in nm) of a proton

Answer 15

Wavelength = plancks constant divided by (mass x velocity)

Question 16

E =

Answer 16

(h)(frequency) or (hc)(wavelength)

Question 17

C =

Answer 17

Wavelength x frequency

Question 18

Change in E =

Answer 18

-Rh (1/n^2 final - 1/n^2 initial)

Question 19

Frequency is measure in units of

Answer 19

Hz or 1/S or s^-1

Question 20

E equals what is words

Answer 20

Energy of one photon with a frequency of v

Question 21

H =

Answer 21

Plancks constant

6.626 x 10^-34 J

Question 22

C = speed of light =

Answer 22

3.0 x 10^8 m/s

Question 23

Rh =

Answer 23

2.18 x 10^-18 J

Question 24

List the light spectrum in order

Answer 24

Radio waves- microwaves - infrared- ultraviolet- X-rays- gamma

Longer wavelength to shorter wavelength

Question 25

Where does visible light fall on the spectrum?

Answer 25

Between infrared and ultraviolet

Question 26

Visible light spectrum

Answer 26

ROYGBIV

700 nm to 400 nm

Question 27

The distance from crest or trough to trough on a wave

Answer 27

Wavelength

Question 28

The # of crests of a wave that pass a stationary point of reference per second

Answer 28

Frequency

Question 29

The height of the crest or depth of the trough of a wave with respect to the center line of the wave

Answer 29

Amplitude

Question 30

The smallest discrete quantity of a particular form of energy

Answer 30

Quantum

Question 31

Having values restricted to whole-number multiples of a delicacy base value

Answer 31

Quantized

Question 32

Maximum height of wave

Answer 32

Amplitude

Question 33

Point of zero amplitude

Answer 33

Node

Question 34

Which LED emits higher energy? Blue (470 nm) or green (520 nm)

Answer 34

Blue

Question 35

Which laser emits light with the higher frequency? Red (650 nm) and green (532 nm)

Answer 35

Green

Question 36

A # that specifies the energy and location of an electron in an atom

Answer 36

Quantum #

Question 37

What is the longest wavelength of light that could produce e-?

Answer 37

Work function divided by h

Question 38

Bohr’s greatest contribution to science was in building a (blank)

Answer 38

Simple model of the atom

Question 39

Electron can only exist in discrete orbits or (blank) energy states

Answer 39

Quantized

Question 40

Energy of electron equation

Answer 40

-Rh(1/n^2)