IB DP Physics: HL复习笔记12.2.2 Nuclear Scattering
Nuclear Scattering Electrons accelerated to close to the speed of light have wave-like properties such as the ability to diffract and have a de Broglie wavelength equal to: Where: h = Planck's con...
IB DP Physics: HL复习笔记12.2.1 Rutherford Scattering & Nuclear Radius
Rutherford Scattering & Nuclear Radius In the Rutherford scattering experiment, alpha particles are fired at a thin gold foil Initially, before interacting with the foil, the particles have kin...
IB DP Physics: HL复习笔记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...
如何选择适合自己的AP课程？AP选课指南请收好
为了向大学招生官展示你的学术能力，在高中期间选修AP课程很重要，而AP课程门类繁多，如果没有明确的目标专业，选课会令人感到非常头秃。在很多成功的申请案例中，有手握十几门AP 5分的学生，也有只考一两门AP的...
IB DP Physics: HL复习笔记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复习笔记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复习笔记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复习笔记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复习笔记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 ...
