CIE A Level Physics复习笔记10.1.1 Circuit Symbols
Circuit Symbols The diagrams below show the various circuit symbols that could be used in circuit diagrams. You will be expected to recognise and draw all of these The most common symbols are as fo...
Edexcel IGCSE Biology: Double Science 复习笔记 1.1.4 Living Organisms: Response to Surroundings
Edexcel IGCSE Biology: Double Science 复习笔记 1.1.4 Living Organisms: Response to Surroundings Response to Surroundings The sensitivity of an organism refers to its ability to detect...
Edexcel IGCSE Biology: Double Science 复习笔记 1.1.3 Living Organisms: Excretion
Edexcel IGCSE Biology: Double Science 复习笔记 1.1.3 Living Organisms: Excretion Excretion Chemical reactions that take place inside living cells are described as metabolic reactions ...
Edexcel IGCSE Biology: Double Science 复习笔记 1.1.2 Living Organisms: Nutrition & Respiration
Edexcel IGCSE Biology: Double Science 复习笔记 1.1.2 Living Organisms: Nutrition & Respiration Nutrition Organisms must obtain food to provide energy Energy is necessary to carry out life proce...
CIE A Level Physics复习笔记9.3.2 Resistance in Sensory Resistors
Resistance in a Light-Dependent Resistor A light-dependent resistor (LDR) is a non-ohmic conductor and sensory resistor Its resistance automatically changes depending on the light energy falling on...
Edexcel IGCSE Biology: Double Science 复习笔记 1.1.1 The Unifying Characteristics of Living Organisms
Edexcel IGCSE Biology: Double Science 复习笔记 1.1.1 The Unifying Characteristics of Living Organisms The Unifying Characteristics of Living Organisms In order for something to be considered...
CIE A Level Physics复习笔记9.3.1 Resistivity
Resistivity All materials have some resistance to the flow of charge As free electrons move through a metal wire, they collide with ions which get in their way As a result, they transfer some, or a...
CIE A Level Physics复习笔记9.2.4 Resistance in a Filament Lamp
Resistance in a Filament Lamp The I-V graph for a filament lamp shows the current increasing at a proportionally slower rate than the potential difference I-V characteristics for a filament lamp Th...
CIE A Level Physics复习笔记9.2.3 I-V Characteristics
I–V Characteristics As the potential difference (voltage) across a component is increased, the current also increases (by Ohm’s law) The precise relationship between voltage and current is differen...
