IB DP Physics: HL復習筆記12.1.10 Tunnelling
Tunnelling Single potential wells?lead to quantised energy levels and their associated?wavefunctions The wavefunction extends throughout space However, for?infinitely deep square wells?the wavefunc...
如何選擇適合自己的AP課程？AP選課指南請收好
為了向大學招生官展示你的學術(shù)能力，在高中期間選修AP課程很重要，而AP課程門類繁多，如果沒有明確的目標專業(yè)，選課會令人感到非常頭禿。在很多成功的申請案例中，有手握十幾門AP 5分的學生，也有只考一兩門AP的...
IB DP Physics: HL復習筆記12.1.9 The Uncertainty Principle
The Uncertainty Principle The quantisation of energy levels and their associated wave functions leads to some surprising outcomes One of these outcomes is known as the?uncertainty principle The unc...
IB DP Physics: HL復習筆記12.1.8 The Wave Function
The Wave Function Bohr?showed that the angular momentum of an electron orbiting a hydrogen atom was?quantised He also showed that the allowed electron energies were also quantised Unfortunately, th...
IB DP Physics: HL復習筆記12.1.7 Quantization of Angular Momentum
Quantization of Angular Momentum Angular momentum is a property of any spinning or rotating body, very similar to?linear momentum In linear motion, momentum is the product of mass and velocity In r...
IB DP Physics: HL復習筆記12.1.6 Pair Production & Annihilation
Pair Production & Annihilation Annihilation When a particle meets its antiparticle pair, the two will?annihilate Annihilation is: When a particle meets its equivalent anti–particle they both ar...
IB DP Physics: HL復習筆記12.1.5 Matter Waves
Matter Waves De Broglie proposed that electrons travel through space as a wave This would explain why they can exhibit behaviour such as diffraction He therefore suggested that electrons must also ...
IB DP Physics: HL復習筆記12.1.4 Solving Photoelectric Problems
Solving Photoelectric Problems Since energy is always conserved, the energy of an incident photon is equal to: The work function + the maximum kinetic energy of the photoelectron The energy within ...
IB DP Physics: HL復習筆記12.1.3 Observing the Photoelectric Effect
Observing the Photoelectric Effect The?photoelectric effect?can be observed on a?gold leaf electroscope A plate of metal, usually?zinc, is attached to a gold leaf, which initially has a negative ch...
