Boyle's Law
Temperature remaining constant, the volume of a given mass of any gas is inversely proportional to its pressure.
For Example :
The Syringe
Far more simple than a can of spray paint. Syringes of all types utilize Boyle's law on a very basic level. When you pull the plunger out on a syringe it causes the volume within the chamber to increase. As we know, this causes the pressure do the opposite, which creates a vacuum attempting to re-pressurize back to atmospheric levels. Since the only fluid available on the other side of the needle tends to be a liquid such as blood, which gets sucked into the chamber, reducing the volume and increasing the pressure back to where it wants to be.
Charle's Law
Pressure remaining constant the volume of a given mass of any gas is directly proportional to its absolute temperature.
For Example :
Helium Balloon on a Cold Day
If you have bought a helium balloon for your child, you may have noticed this phenomenon. If it's cold outside, your child's face may fall when she notices that the helium balloon has crumpled. All isn't lost, of course, because once you enter your warm home, the balloon returns to its original shape. This is because, according to Charles' law, a gas takes up more space when it is warm.
If the arrangement of elements is done in the order of their atomic numbers, those possessing similar properties reoccur at regular intervals.
For Example :
In chemistry, law stating that many of the physical and chemical properties of the elements tend to recur in a systematic manner with increasing atomic number. Progressing from the lightest to the heaviest atoms, certain properties of the elements approximate those of precursors at regular intervals of 2, 8, 18, and 32. For example, the 2d element (helium) is similar in its chemical behavior to the 10th (neon), as well as to the 18th (argon), the 36th (krypton), the 54th (xenon), and the 86th (radon). The chemical family called the halogens, composed of elements 9 (fluorine), 17 (chlorine), 35 (bromine), 53 (iodine), and 85 (astatine), is an extremely reactive family.
Ohm's Law
The current flowing through a conductor between any two points is proportional to the potential difference between them, provided physical conditions remain unchanged.
For Example :
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