Gravitational Field Strength There is a universal force of attraction between all matter with mass This force is known as the ‘force due to gravity’ or the weight The Earth’s gravitational field is...
Gravitational Fields Generally, a force field is a region of space in which an object will experience a force A gravitational field, therefore, is a region of space in which any object with mass ex...
Edexcel IGCSE Biology: Double Science 复习笔记 2.5.2 Factors Affecting Photosynthesis Limiting Factors Plants do not have unlimited supplies of their raw materials so their rate of photosynt...
Edexcel IGCSE Biology: Double Science 复习笔记 2.5.1 Photosynthesis Photosynthesis Theory Photosynthesis is an endothermic reaction in which energy from sunlight is transferred to the chloro...
Edexcel IGCSE Biology: Double Science 复习笔记 2.4.5 Active Transport Active Transport Theory Active transport is: The movement of particles through a cell membrane from a region of l...
Edexcel IGCSE Biology: Double Science 复习笔记 2.4.4 Practical: Osmosis Practical: Factors that Influence Osmosis Osmosis is the diffusion of water molecules from a dilute solution (high con...
Edexcel IGCSE Biology: Double Science 复习笔记 2.4.3 Osmosis Osmosis Theory All cells are surrounded by a cell membrane which is partially permeable Water can move in and out of cells by osm...
Edexcel IGCSE Biology: Double Science 复习笔记 2.4.2 Practical: Diffusion Practical: Factors that Influence Diffusion Diffusion is the movement of molecules from a region of higher concentra...
Edexcel IGCSE Biology: Double Science 复习笔记 2.4.1 Diffusion Diffusion Theory Diffusion is the movement of molecules from a region of its higher concentration to a region of its lower conc...
