WorksheetsWaves and Energy
Total questions: 10
Worksheet time: 21mins
Name
Class
Date
1.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
2.
In which state does an electron have the least amount of energy?
a)
Excited state
b)
Ground state
c)
Orbital
d)
Bohr model
3.
Emission spectra (bright line spectra) are created when electrons move from ___.
a)
higher to lower energy levels.
b)
lower to higher energy levels.
c)
s orbitals to p orbitals.
d)
one atom to a different atom.
4.
When atoms _____________ energy, their electrons move to higher energy levels. These electrons _____________ energy by emitting light when they return to lower energy levels.
a)
lose, absorb
b)
absorb, lose
c)
lose, lose
d)
absorb, absorb
5.
According to the Bohr Model, electrons are only found in specific orbits around the nucleus called __________________________
a)
Energy Levels
b)
Electron Lanes
c)
Electron Places
d)
Atomic Mass
6.
Certain blue lights have a frequencey of 6.91x1014Hz. What is the wavelength? (λ=c/v)
a)
4.34x1021
b)
4.34x10-21
c)
4.34x10-7
d)
2.07x1023
7.
What is the energy of a quantum of light with a frequency of 7.39x1014Hz.(E=Hv)
a)
4.88x1019
b)
4.88x10-19
c)
2.22x1023
d)
2.22x10-23
8.
What is a photon?
a)
When radiation burst through electric waves
b)
The emission of electrons from a metal caused by light striking the metal
c)
The rate at which a waves energy flows through a given unit of area.
d)
packets of electromagnetic energy
9.
The blue section of the wave is measuring _________________.
a)
wavelength
b)
crest
c)
trough
d)
amplitude
10.
Select the correct order of wavelengths on the electromagnetic spectrum (short to long)
a)
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
b)
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
c)
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
d)
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
100 %
