- Coulomb’s Law (1738-1806)
The force between two electric charges decreases to a quarter of its former value when the distance between them is doubled. The SI unit of electric charge, the coulomb, is named after Charles Augustine de Coulomb, who established the law.
- Stephen’s Law (1835-1883)
The total energy released by a blackbody is equal to the fourth power of its absolute temperature.
- Pascal’s Law (1623-1662)
- When a fluid is pressurized, the change in pressure is transmitted through each part of the fluid without loss. Hydraulic machines such as hydraulic presses work on this principle.
- Atmospheric pressure decreases with increase in altitude. The SI unit of pressure is the pascal, named after Pascal who established this law.
- Hooke’s Law (1635-1703)
This law states that the extension of a spring is proportional to its tensile stress. Doubling the tension results in doubling the amount of stretch.
- Bernoulli’s principle
It states that as the velocity of a moving fluid, liquid or gas increases, the pressure inside the fluid decreases. The aerodynamic lift on an aircraft wing is also explained by this principle.
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