Edexcel IGCSE Physics: Double Science 复习笔记：8.1.4 Orbital Period Calculating Orbital Period When planets move around the Sun, or a moon moves around a planet, they orbit in circular moti...
Edexcel IGCSE Physics: Double Science 复习笔记：8.1.3 Orbital Motion Orbital Motion There are many orbiting objects in our solar system and they each orbit a different type of planetary body...
Edexcel IGCSE Physics: Double Science 复习笔记： 8.1.2 Gravitational Field Strength Gravitational Field Strength The strength of gravity on different planets after an object's weight on that...
Edexcel IGCSE Physics: Double Science 复习笔记： 8.1.1 Objects in Space Planets, Stars & Galaxies The Universe is is a large collection of billions of galaxies It is also the name given...
Edexcel IGCSE Physics: Double Science 复习笔记：7.3.5 The Conditions for Fusion Fusion in Stars Stars are huge balls of (mostly) hydrogen gas In the centre of star, hydrogen atoms undergo nu...
Calculating Binomial Probabilities Throughout this section we will use the random variable . For binomial, the probability of a X taking a non-integer or negative value is always zero. Therefore a...
Edexcel IGCSE Physics: Double Science 复习笔记：7.3.4 Nuclear Fusion Nuclear Fusion Small nuclei can react to release energy in a process called nuclear fusion Nuclear fusion is defined as: ...
Edexcel IGCSE Physics: Double Science 复习笔记：7.3.3 Nuclear Reactors Chain Reactions Only one extra neutron is required to induce a uranium-235 nucleus to split by fission During the fissi...
Edexcel IGCSE Physics: Double Science 复习笔记：7.3.2 Nuclear Fission Nuclear Fission Nuclear fission is defined as: The splitting of a large, unstable nucleus into two smaller nuclei...
