AQA A Level Physics復習筆記4.2.2 Couples
Couples A couple is a?pair?of equal and opposite?coplanar forces?that acts to produce?rotation?only A couple consists of a pair of forces that are: Equal in magnitude Opposite in direction P...
AQA A Level Physics復習筆記4.2.1 Moments
What is a Moment? A moment is the?turning effect of a force Moments occur when forces cause objects to?rotate?about some pivot The moment of a force is given by Moment (N m) = Force (N) × pe...
美本申請十大誤區，你誤入了嗎？
現在關于留學申請的內容越來越多，但也不乏很多“誤導性”觀點。在多關注資訊的同時一定要避免踩坑。 十大誤區 1美本規劃，從11年級開始就行 很多家長，即使孩子在初中升高中時，就已經決定了出國留學。但她們仍然...
AQA A Level Physics復習筆記4.1.2 Resolving Vectors
Resolving Vectors Two vectors can be represented by a single?resultant vector Resolving a vector is the opposite of adding vectors A single resultant vector can be resolved This means...
AQA A Level Physics復習筆記4.1.1 Scalars & Vectors
Scalars & Vectors A?scalar?is a?quantity?which?only?has a magnitude (size) A?vector?is a quantity which has?both?a magnitude and a direction For example, if a person goes on a hike in th...
AQA A Level Physics復習筆記3.5.1 Refraction at a Plane Surface
Refractive Index Refraction occurs when light passes a boundary between two different transparent media At the boundary, the rays of light undergo a?change in direction The direction is take...
AQA A Level Physics復習筆記3.4.1 Single Slit Diffraction
Diffraction Diffraction is the?spreading out?of waves when they pass an obstruction This obstruction is typically a narrow slit known as an aperture The extent of diffraction depends ...
AQA A Level Physics復習筆記3.3.1 Path Difference & Coherence
Path Difference & Coherence Interference occurs when waves?overlap?and their resultant displacement is the?sum of the displacement of each wave This result is based on the principle of s...
AQA A Level Physics復習筆記3.2.1 Stationary Waves
Stationary Waves Standing waves?are produced by the?superposition?of two waves of the same?frequency?and?amplitude?travelling in?opposite directions This is usually achieved by a travelling ...
