Comparing Electric & Gravitational Fields The similarities and differences between gravitational and electrostatic forces are listed in the table below: Table Comparing G and E Fields Similarit...
Gravitational Potential for a Radial Field Near the Earth's Surface The gravitational potential energy (G.P.E) is the energy an object has when lifted off the ground given by the familiar equation:...
Gravitational Field due to a Point Mass The gravitational field strength at a point describes how much gravitational force is experienced by a test mass at that point The strength of a gravitationa...
Newton's Law of Universal Gravitation The gravitational force between two masses, e.g., between the Earth and the Sun, is defined by Newton’s Law of Universal Gravitation Newton’s Law of Universal ...
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 復習筆記 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 復習筆記 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 復習筆記 2.4.5 Active Transport Active Transport Theory Active transport is: The movement of particles through a cell membrane from a region of l...
