Have you ever thought about why you really need Physics in your life? Moreover, if you are willing to become a programmer, you will need to know Physics. Today, the most common question among the IT students is – ‘Why does an IT student need to study Physics?’ We will help you to clarify everything! In this work, we trigger the most fundamental scientific discipline as physics, because its main purpose is to study Universe’s behavior, to predict it on different scales - from massive groups of galaxies attracted to each other by gravitation to tiny subatomic particles that behave weirdly according to our real life.