WorksheetsTYBSc Physics Internal Assessment 5
Total questions: 23
Worksheet time: 8mins
Which quantum number represents the shape of the orbital?
principal quantum number
azimuthal (angular momentum) quantum number
magnetic quantum number
spin quantum number
Which quantum number represents the orientation of the orbital?
principal quantum number
azimuthal (angular momentum) quantum number
magnetic quantum number
spin quantum number
When atoms _____________ energy, their electrons move to higher energy levels. These electrons _____________ energy by emitting light when they return to lower energy levels.
lose, absorb
absorb, lose
lose, lose
absorb, absorb
Heisenberg's Uncertainty Principle states that it is impossible to know both the ___________ and the __________ of a particle at the same time.
velocity, position
velocity, energy
position, energy
velocity, speed
De Broglie equation
relates the momentum of a mass to its wavelength
relates the energy of a mass to its wavelength
relates the frequency of a mass to its wavelength
relates the work function of a mass to its wavelength
Which quantum number represents the orientation of the orbital?
principal quantum number
azimuthal (angular momentum) quantum number
magnetic quantum number
spin quantum number
Which is a use of microwaves?
Remote control for TVs
Laser Printers
Speed cameras
What are dangers of microwaves?
large doses are cause cancer, leukaemia and other disorders
long exposure cause clouding in lens of eye
can affect parts of brain
causes skin burn
The property of nuclei that allows them to have magnetism
spin
resonance
charge
mass
The frequency of precession called the __________ frequency, which depends upon the nature of the nucleus and the strength of the magnetic field.
Lamour
Lemon
Le Tour
Lemur
The RF pulse is transmitted to the patient by means of
electromagnetic coils
circuits
permanent magnets
capacitors
