The Importance of Physics In Everyday life

Physics is the study of matter, energy, and the interaction between them. Most of the physics concepts have a significant impact on our daily life. It describes the transformation of various forms of energy like kinetic to potential energy, heat to mechanical energy, mechanical to electrical energy, etc.

Physics is even applied to our body. The sensation is carried to our mind through electrical signals that enable us to identify different objects around us. Due to high specific heat property of water, it is utilized as a coolant or as a heating liquid.

Physics has given us valuable inventions like automobiles, bulbs, microwave ovens, LEDs, watches, cell phones, computers, laptops, etc. We cannot imagine life without physics. Here are few important Physics theories that everyone must know about:

The law of Conservation of Momentum: 

The momentum of an object is the product of its mass and velocity. According to this law, the net momentum of all the objects in nature remains same. This law allows us to conclude the effects of collisions between objects.

The net momentum before and after the collision is always same. This concept is utilized to understand the variation in the velocity of each object before and after the collision.

Both Newton's law of motion and law of Conservation of momentum play a crucial role in understanding the collisions between the particles (subatomic) and for estimating the amount of fuel required for generating a forward propulsion in the spaceships.

The Laws of Thermodynamics: 

It is the study of relation between heat and the other forms of energy.  All the automobiles utilize the basic fundamental laws of thermodynamics (2nd law, Carnot Cycle). These laws are also utilized in the study of power plants like thermal, nuclear, hydroelectric power plants.

Also, power plants running on renewable energy resources like solar, wind, geothermal, water waves, tides, water waves, etc utilize thermodynamic laws for proper functioning. Heat transfer is an important section of thermodynamics that relates the transfer of heat between two or more objects.

There are primarily three modes of transferring heat between objects, namely, convection (In Liquids), conduction (In Solids), and radiation (In Vacuum). These methods of heat transfer are employed in wide range of devices like evaporators, condensers, radiators, coolers, heaters, heat exchangers, etc.

The law of Conservation of Energy: 

According to this law, the energy can neither be produced nor be destroyed; however, the energy can be conveyed from one form to another. The appliances used in kitchen convert electrical energy into thermal and mechanical energy.

The engines in the automobiles convert chemical energy to mechanical and thermal energy. In a thermal or nuclear power plant, the heat, mechanical, or chemical energy is transformed into electrical energy.

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