Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記： 1.1.6 Area under a Velocity-Time Graph Area under a Velocity-Time Graph The area under a?velocity-time graph?represents the?displacement?(or?...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記： 1.1.5 Velocity-Time Graphs Velocity-Time Graphs A velocity-time graph shows how the velocity of a moving object varies with time The red line...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記： 1.1.4 Acceleration Acceleration Acceleration?is defined as the?rate of change of velocity In other words, it describes how much an object's v...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記： 1.1.3 Core Practical: Investigating Motion Core Practical 1: Investigating Motion Aim of the Experiment The aim of this experiment is to inve...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：1.1.2 Speed Calculating Average Speed The?speed?of an object is the distance it travels every second Speed is a?scalar?quantity This is becaus...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：1.1.1 Distance-Time Graphs Distance-Time Graphs A distance-time graph shows how the?distance?of an object moving in a straight line (from a st...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 5.3.2 Genetic Engineering: Insulin Manufacturing Insulin The gene for?human insulin?can be inserted into?bacteria?which then produce human insu...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 5.3.1 The Process of Genetic Engineering The Process of Genetic Engineering The gene that is to be inserted is located in the original organism...
Edexcel IGCSE Biology: Double Science 復(fù)習(xí)筆記 5.2.1 Selective Breeding Selective Breeding in Animals Selective breeding or artificial selection means to?select individuals with desirable ch...
