Title GES Q1 0301 SG.pdf ✅

Unit 3: Simple and Compound Machines 1 Designing Simple Machines I: Levers Figure 1. A child uses a seesaw in a playground, demonstrating the principles of a first-class lever in action. Introduction In everyday life, we unknowingly rely on levers to make tasks easier, whether lifting a heavy lid with a stick or using a crowbar to remove a nail. Levers are among the most ancient and fundamental of all simple machines, using the principle of rotational motion around a pivot to multiply force or change direction. Understanding how levers work is not only essential in physics but also in practical fields such as engineering, physical therapy, and biomechanics. This lesson explores the types, mechanics, and applications of levers, equipping learners 3.1. Designing Simple Machines I: Levers 1
Unit 3: Simple and Compound Machines with both analytical skills and design perspectives. With this knowledge, students can begin to design efficient machines that solve real-world problems through physics. Learning Competency At the end of this lesson, the learners should be able to apply concepts of translational and rotational motion to design and build prototypes of efficient simple and compound machines. Learning Targets In this lesson, you should be able to do the following: ● Classify the three classes of levers based on the positions of effort, load, and fulcrum. ● Calculate mechanical advantage and efficiency in lever systems using appropriate formulas. ● Analyze real-world applications of levers in everyday tools and human body mechanics. ● Design and build a prototype of a lever system that demonstrates optimal mechanical advantage for a specific purpose. Learn About It Simple machines are basic mechanical devices that make work easier by changing the direction or magnitude of a force. They include the lever, pulley, wheel and axle, inclined plane, wedge, and screw. Each type helps us perform everyday tasks with greater efficiency, whether it is lifting a heavy object or splitting materials. Among these, the lever is one of the oldest and most commonly used simple machines. It operates by rotating a rigid bar around a fixed point called the fulcrum, allowing a small effort to move a large load depending on its design. In this lesson, we will explore the structure, function, and real-world applications of levers as essential tools in both physics and daily life. 3.1. Designing Simple Machines I: Levers 2