Electromagnetic Energy and Electron Energy Levels ch 2

Question 1

The electrons in atoms obtain energy from being
_______ and release energy as
at different _________ which give rise to different
colors.

Answer 1

1-heated
2-wavelengths

wavelength : the distance between identical points

Question 2

The colors that we can see are only part of the
___________

Answer 2

electromagnetic spectrum

aa lik tro mag na tik/ spak trim

electro mag netic spectrum

Question 3

The visible light spectrum

Answer 3

is the segment of the electromagnetic spectrum that the human eye can view

Question 4

Photon with large wavelength are_____energy
photon with small wavelength are ________energy

Answer 4

1-lower
2-higher

Question 5

wavelength is referred to as __________

Answer 5

electromagnetic spectrum

Question 6

photon

foh tan

photon

Answer 6

is particle of light

Question 7

Light energy moves in an ________ pattern and we
commonly represent it in the form of waves.

Answer 7

oscillating=تذبذب

ass ill ateing

osc ill ating

Question 8

light does not ________energy

Answer 8

give off

Question 9

parts of wave :

Answer 9

1-frequency
2-amplitude
3-wavelength

Question 10

frequency

Answer 10

the number of waves peak in period of time
unit would be Hz or s-1

Hir tiz

Hz

Question 11

Amplitude

aam plit ood=السعه

Amp li tude

Answer 11

the height of repreasentive wave from the baseline

Question 12

wavelength

Answer 12

the distance from one peak to the next wave

Question 13

what is the relationship between wavelength and frequency :

Answer 13

Wavelength x Frequency = Speed of light (in a vacuum)

Question 14

blue light such as sunlight

Answer 14

higher energy and frequency
and has short wavelengths.

Question 15

Red light

Answer 15

lower energy
low frequency
higher wavelength

Question 16

__________ give us a better understanding of emission
wavelengths from materials and used
to help identify metals in particular and through prism we can see rainbow

E mish N / priz M

emission=انبعاث / prism=نشور زجاجي

Answer 16

Line spectra

such as rainbpw

Line spaktra

Line spectra

Question 17

The energy of a photon is related to the wavelength and
frequency from ________

Answer 17

Planck’s postulate

plainx past chill it

planck’s post u late

Question 18

400,500,600,700 represent which color :

Answer 18

400=blue
500=green
700=red
600=orange