What is the sine rule? The sine rule allows us to find missing side lengths or angles in?non-right-angled triangles It states that for any triangle with angles?A, B?and?C Where a?is the side?opposi...
22fall香港留學入境最新政策有什么攻略？如果想要去到香港不隔離的同學，那么針對非香港居民在入境香港前14天沒去過香港，廣東或澳門以外的其他地區，同時沒去過“來港易計劃暫不適用的風險地區名單”內的地方，則...
What is the Pythagorean theorem? Pythagoras’ theorem is a formula that works for?right-angled triangles?only It states that for any right-angled triangle, the?square of the hypotenuse is equal to t...
What is volume? The volume of a 3D shape is a measure of how much 3D space it takes up A 3D shape is also called a?solid You need to be able to calculate the volume of a number of common shapes How...
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 ...
How does the 3D coordinate system work? In three-dimensional space we can label where any object is using the?x-y-z?coordinate system In the 3D cartesian system, the?x-?and?y-?axes usually represen...
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...
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...
What is an arc? An arc is a part of the?circumference?of a circle It is easiest to think of it as the crust of a single slice of pizza The length of an arc depends of the size of the angle at the c...
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...
Work Done by a Gas When a gas expands, it does work on its surroundings by exerting pressure on the walls of the container it's in This is important, for example, in a steam engine where exp...
Ideal Gas Equation An ideal gas is a specific type of gas which: Has molecules with negligible volume Collisions which are elastic Cannot be liquified Has no interactions between the molecul...
