Physics in our daily life

Physics applies well in our everyday life describing motion, force and energy of ordinary experiences. In action such as walking, cycling, driving a car, using a cell phone – physics is at work.

Here are a few examples of Physics around your home

1. Electricity from potato, lemon tree, banana stem works on the principle of electrochemistry. Bio energy in a banana stem is converted to chemical energy and then to electrical energy using electrodes. It generates about 3 volts. We can store this type of voltage and light the LED bulb.

2. Cell phone: 

     In day to day life cell phone has become a necessity. But do you know how a cell phone works? What is the physics behind this?

      Cell phone works on the principle of electricity and electromagnetic spectrum. Cell phones emit  electromagnetic radiation and communicate through radiofrequency waves which are a form of energy in the electromagnetic spectrum.

3. Electric toaster: Yum! What could be better than a nice crisp piece of buttered toast first thing in the  morning?

There is physics involved in toasters! It converts electrical energy in to heat. The higher the resistance, the hotter the metal will get. This happens because of the friction of the electrons. The wire begins to heat up and glow. This heat is what toasts the bread.

4. Physics in camera lens: Selfie has overwhelmed people of every age group. everyone enjoys taking photos to preserve memories of the good times together with family, friends or colleagues!

The lens used in camera works on the principle of optics.

 5.Physics and Music:  Every one loves to play guitar or listen to the music from violin, sitar, flute or drums. Do you know how music and physics are related?

    In a musical instrument like a guitar sound waves are produced. As the guitar string vibrates, it sets the surrounding air molecules in to vibrational motion. The frequency at which the air molecules vibrates is equal to the frequency of

    vibration of the guitar string. 

In this virtual teaching efforts have been made by children of grade X to share their experiences of applying physics in daily life.

Vanshika Vishnawat explained how electrical connections are done in houses and the advantages of understanding the concept. Accordingly she made a model.

Shallvi Negi: She made a model of electric motor and explained how it functions in a mixer grinder and washing machine, specifying conversion of electrical energy in to mechanical energy.

Aryan Gupta: He made a model and explained the working of a generator, specifying the conversion of mechanical energy in to electrical energy.

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