Najtrudniejsze zadanie maturalne 2024. Zadanie 3 CKE maj 2024 fizyka.

There will be vibrations, and not just from ingesting various substances. Apparently, it was difficult, so the Central Examination Board (CKE) shouts - 14% of the students passed with full marks, the rest hmmm. Check out the most difficult physics exam task of the 2024 Matura exam. We analyze the harmonic motion of a 100 g mass suspended from a spring, examining the dependence of its velocity on time in a vertical gravitational field. See how the velocity and direction of motion change in harmonic oscillations! Timetable: 00:00 - Introduction 00:16 - Task text: A mass of 𝑚 = 100.0 g is suspended from a spring and performs harmonic oscillations in the vertical direction, in a uniform, Earth's gravitational field. We assume that the mass oscillates along the 𝑦 axis, directed vertically upward. The graph below shows the dependence of the mass's velocity coordinate v𝑦 on time 𝑡. A positive value of the velocity coordinate v𝑦 means that the mass's velocity vector is pointing upward, and a negative value means that the velocity vector is pointing downward. The mass's velocity is defined in a reference frame tied to Earth. 02:32 - Task 3.1: Evaluate the following statements. Mark T if the statement is true or F if it is false. 1. At time 𝑡 = 0.2 s, the forces acting on the mass are balanced. P F 2. The mass's kinetic energy at time 𝑡 = 0.1 s is equal to the mass's kinetic energy at time 𝑡 = 0.3 s. P F 3. The mass's acceleration at time 𝑡 = 0.4 s is greater than its acceleration at time 𝑡 = 0.5 s. 08:52 - Task 3.2: The forces acting on the mass are balanced when the mass is at coordinate 𝑦 = 0, while the mass's highest and lowest positions are at coordinates 𝑦 = 𝐴 and 𝑦 = −𝐴, respectively. At a certain moment during the oscillating motion, the mass reaches point 𝑃 ​​(see the schematic drawing below). 12:15 Task 3.3: Calculate the spring force acting on the mass when it is at its lowest position during the oscillating motion. Record your calculations. Matura Physics Course ♦https://kursydomatury.pl/fizyka/ Instagram - quick flashcards and Matura exam tips. ♦ www.instagram.com/pogotowiematurafizyka Experiments to supplement Matura exam knowledge and tips. Sometimes less serious. ♦ www.tiktok.com/@pogotowiematurafizyka