AQA A Level Physics复习笔记7.1.2 Gravitational Field Strength
Gravitational Force 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 fie...
AQA A Level Physics复习笔记7.1.1 Force Fields
Concept of a Force Field A force field is any region of space where a body will experience a non-contact force This will cause the body to move, interact or be deformed in some way A ...
AQA A Level Physics复习笔记6.6.5 Evolving Models of Gas Behaviour
Evolving Models of Gas Behaviour Our knowledge and understanding of the behaviour of gases has changed significantly over time The gas laws were developed by many scientists over thousands o...
AQA A Level Physics复习笔记6.6.4 Brownian Motion
Brownian Motion Brownian motion of particles is the phenomenon when: Small particles (such as pollen or smoke particles) suspended in a liquid or gas are observed to move around in a random,...
AQA A Level Physics复习笔记6.6.3 Average Molecular Kinetic Energy
Average Molecular Kinetic Energy An important property of molecules in a gas is their average kinetic energy This can be deduced from the ideal gas equations relating pressure, volume, tempe...
AQA A Level Physics复习笔记6.6.2 Kinetic Theory of Gases Equation
Kinetic Theory of Gases Equation Assumptions in Kinetic Theory Gases consist of atoms or molecules randomly moving around at high speeds The kinetic theory of gases models the thermodynamic ...
AQA A Level Physics复习笔记6.6.1 Gas Laws v Kinetic Theory
Gas Laws v Kinetic Theory There is a scientific distinction between the gas laws and kinetic theory Gas Laws The gas laws are empirical in nature which means they are based on observation an...
AQA A Level Physics复习笔记6.5.6 Required Practical: Investigating Gas Laws
Required Practical: Investigating Gas Laws Investigating Boyle's Law The overall aim of this experiment is to investigate the effect of Boyle's Law This is the effect of pressure on volume a...
AQA A Level Physics复习笔记6.5.5 Avogadro, Molar Gas & Boltzmann Constant
Avogadro, Molar Gas & Boltzmann Constant Avogadro's Constant The atomic mass unit (u) is approximately the mass of a proton or neutron = 1.66 × 10-27 kg This means that an atom or molecu...
