کار چیست؟ - درس 15 - فصل 3

What is Work | Lesson 15 | Chapter 3 Did you know that the definition of "work" in everyday life is completely different from its definition in physics? For example, if you sit at a desk for hours and think or throw marbles at a traditional wall with all your might, you have not physically done anything! In this educational video from the third chapter of seventh-grade physics, you will learn in very simple language and with concrete examples when work occurs in physics and how it is calculated. ❓ What will you learn in this video? The fundamental difference between everyday work (thinking, writing) and work in physics The main condition for work to be done (input of force and displacement in the direction of the force) The mathematical formula for calculating work (\(W = F \times d\)) The unit of measurement for work (Newton meter or Joule \(J\)) The relationship between mass (mass) and gravitational force (weight of an object on Earth) Solution of practical examples and sample questions on page 27 of the school book This lesson is one of the most basic concepts in physics that is very important in higher grades and the entrance exam. So take your paper and pen and stay with us until the end of the video! If this tutorial was useful to you, please subscribe to our channel, like the video and write your comments or questions in the comments section. Also activate the bell to be informed about the next lessons! #Physics #7th_Grade #What_is_work #Work_Formula #Joule #Physics_Education #School #Physics_in_Simple_Language #Physics_Exercise_Solutions