Introduction to Science Lecture Notes PDF

BS (Hons) Course Code: PHY-100 Course Title: Introduction to Science Credit Hours: 3(2-1)  Unit 4 Introduction to Main Areas of Science Lec 5 Content Applications of Physics Applications of Physics in Everyday Life Physics is present in all aspects o...

BS (Hons) Course Code: PHY-100 Course Title: Introduction to Science Credit Hours: 3(2-1)  Unit 4 Introduction to Main Areas of Science Lec 5 Content Applications of Physics Applications of Physics in Everyday Life Physics is present in all aspects of our lives. From the pre-scientific past to our modern era, physics is everywhere, whether you are walking, running, jumping, tossing, dancing, or simply doing nothing. Physics is the superhero of science, as it is the basis of all other experimental sciences. It helps us to understand why things fall, why the Earth spins, and why humans don’t float away into space. Physics in everyday life helps improve our understanding of the natural world while also laying the foundations for many technological developments. Ballpoint pen: People say the pen is mightier than the sword. Physics plays a major role in using a pen as a tool for writing. The design of the ball pen explains the physics facts in everyday life. When you use a ballpoint pen, it involves principles of fluid dynamics and friction. There is a small spherical point object at the tip of the ball pen. When you apply pressure to the pen and move it across the paper, the ball rotates and rolls. As it rolls, it picks up ink from the refill, which is a small tube filled with ink inside the pen. Because of the gravitational effect, the ink flows through the ball and then onto the paper. This mechanism ensures a smooth flow of ink and allows you to write or draw with precision. Roller coasters: Concepts such as gravity, acceleration, and inertia are used here. The roller coaster is initially dragged up a steep hill, storing potential energy. The potential energy is turned into kinetic energy when it rises the slope, ending in an exciting drop. The track’s twists, bends, and loops influence forces like gravity and centripetal force, resulting in amazing moments of feeling weightless and tremendous g- forces. These aspects work together to provide an adrenaline-pumping experience while sticking to laws of physics that keep riders safe and engaged. Fans: Fans, the most needed thing in summer depends on fluid dynamics and electromagnetic concepts. When a fan is turned on, the blades inside it revolve. As the blades rotate, they produce a low-pressure zone behind them. This low-pressure zone encourages air to flow from higher-pressure places, such as the surrounding room, to the fan. Thank You References https://www.theengineeringprojects.com/2021/03/what-is- science-definition-branches-books-and-scientists.html https://leverageedu.com/blog/branches-of-science/ https://study.com/learn/lesson/natural-science-branches- topics.html https://www.allthescience.org/what-are-the-formal- sciences.htm#google_vignette https://helpfulprofessor.com/social-sciences-examples/ https://www.youtube.com/watch?v=yWMKYID5fr8 https://study.com/learn/lesson/what-is-physics-branches.html https://collegedunia.com/exams/motion-definition-types- examples-physics-articleid-949