IB DP Physics: SL復(fù)習(xí)筆記1.1.1 SI Units
SI Base Quantities International System (S.I.) Units There is a seemingly endless number of units in Physics These can all be reduced to seven base units from which every other unit can be derived ...
IB DP Chemistry: SL復(fù)習(xí)筆記11.2.6 Analysing Graphs
Analysing Graphs The?gradient?of a graph can be found by: In the case of a straight line graph: using a triangle and the equation for a straight line In the case of a curve: drawing a?tangent?to th...
IB DP Chemistry: SL復(fù)習(xí)筆記11.2.5 Drawing Graphs
Drawing Graphs General guidance on drawing graphs Graphs need to have: Clear title Labelled axes Units on the axes Appropriate linear scales without any jumps This means the plotted graph must occu...
IB DP Chemistry: SL復(fù)習(xí)筆記11.2.4 Percentage Error
Percentage Error Percentage error?is used to express the difference between a final calculated answer and an accepted or literature value It is calculated using the following formula You should be ...
IB DP Chemistry: SL復(fù)習(xí)筆記11.2.3 Reducing the Impact of Errors
Reducing Errors Random errors?can be reduced by repeated trials and measurements Multiple measurements when averaged will reduce the impact of a?random error?on the average The more readings you ha...
IB DP Chemistry: SL復(fù)習(xí)筆記11.2.2 Processing Errors
Types of Errors An error is the difference between a value or quantity obtained in an experiment and an accepted or literature value for an experiment There are two types of errors in experiments,?...
哈佛錄取率逐年降低，2022年最新錄取哈佛優(yōu)秀文書(shū)展示
近日，很多大學(xué)都陸續(xù)公布了2022年的新生錄取數(shù)據(jù)，哈佛大學(xué)也不例外。與往年數(shù)據(jù)一對(duì)比，簡(jiǎn)直不敢相信自己的眼睛。一起來(lái)看看吧~ 申請(qǐng)人數(shù)再度攀升，錄取率逐年降低 哈佛大學(xué)2026屆申請(qǐng)數(shù)據(jù) 申請(qǐng)批次 申請(qǐng)數(shù)量 ...
IB DP Chemistry: SL復(fù)習(xí)筆記11.2.1 Recording Data
Qualitative & Quantitative data When recording results of experiment, both?quantitative?and?qualitative?data should be obtained Quantitative data?is obtained from measurements whereas?qualitati...
IB DP Chemistry: SL復(fù)習(xí)筆記11.1.4 Infrared Spectroscopy
How IR Spectroscopy works All?covalent bonds?act rather like springs, as opposed to rigid bars Like springs, the bonds can vibrate in a number of different ways The frequency of vibration occurs in...
