AQA A Level Physics復習筆記1.2.2 Calculating Uncertainties
Uncertainty There is always a degree of uncertainty when measurements are taken; the uncertainty can be thought of as the difference between the?actual?reading taken (caused by the equipment...
AQA A Level Physics復習筆記1.1.3 Estimating Physical Quantities
Orders of Magnitude A quantity is an “order of magnitude” larger than another quantity if it is about ten times larger Similarly, two orders of magnitude would be 100 times larger, or 102 &n...
AQA A Level Physics復習筆記1.1.2 Powers of Ten
Powers of Ten Physical quantities can span a huge range of values For example, the diameter of an atom is about 10–10?m (0.0000000001 m), whereas the width of a galaxy may be about 1021?m (1...
2023年AP宏觀經濟學考綱三大變化！
再過不久，我們將步入暑假時間，標志著屬于2022的時間已經走過了一半。相信許多同學早已“未雨綢繆”，開始準備2023年的AP考試了。日前，CB也公布了2023年AP考試時間和科目安排。 除了明年的考試時間公布之外，CB還...
AP Pre-Calculus課程包括哪些內容？如何學好這門課？
針對2023-24的AP學生CB開設了一門新科目：Pre-calculus 課程包括哪些內容？如何學好這門課？翰林導師的專業解讀來了！ 官網：apcentral.collegeboard.org/courses/ap-precalculus 為什么要開發這門課程？ 對于每...
2022AP成績即將出分，如何查分/送分/復議/取消/隱藏？
2022 AP考試成績將在7月5日全球同步發送，每位考生可以通過自己的AP學生賬號在線查詢成績。但拿到考試成績不是終點，還需要留意后續的成績相關流程。 接下來這篇文章會針對同學關心的問題：查分/送分/復議/取消/...
AQA A Level Chemistry復習筆記8.3.4 Required Practical 12
Separation of species by TLC Required practical 12: Separation?of species by thin-layer?chromatography This practical covers two key laboratory skills use thin-layer or paper chromatography safely ...
AQA A Level Chemistry復習筆記8.3.3 Testing Aldehydes & Ketones
Tollens' Reagent Testing Distinguishing Between Aldehydes & Ketones Weak oxidising agents can be used to distinguish between an aldehyde and a ketone The aldehyde will be oxidised to a c...
AQA A Level Chemistry復習筆記8.3.2 Required Practical 10b
Preparation of an Ester This required practical covers the following mandatory skills use water bath or electric heater or sand bath for heating use laboratory apparatus for a variety of exp...
