Levers. Pulleys and Gears - Presentation is part of the lesson Levers. Pulleys and Gears    Students will learn about levers. pulleys and gears as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

The presentation on levers, pulleys, and gears is designed to help students understand how these simple machines can make mechanical work easier. By exploring the mechanics behind these devices, students will learn to state and explain the principles that govern their operation. For instance, they will examine how the length of a lever affects the effort needed to lift a load, with a longer lever requiring less effort. They will also discover that adding more pulleys can reduce the effort needed to lift a load, and they will delve into the effects of gear sizes on each other, particularly how a larger cog affects a smaller one. This knowledge will be applied to everyday objects and machines, highlighting the practical applications of these principles in the real world.

Through a series of activities and questions, students will engage with the concepts of mechanical advantage and the direction of forces. For example, they will analyze why a classroom door, which acts as a lever, requires less effort to open when the force is applied further from the fulcrum. In another activity, they'll explore pulleys and how they can decrease the effort needed to lift objects. The presentation also includes a scenario involving bike gears, where students learn why changing gears affects pedalling speed and power. By the end of the lesson, students will be expected to articulate the benefits of using simple machines and how they can be leveraged to make tasks easier, culminating in a comprehensive understanding of levers, pulleys, and gears.

Levers. Pulleys and Gears - Lesson Plan is part of the lesson Levers. Pulleys and Gears    Students will learn about levers. pulleys and gears as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

Levers, Pulleys and Gears - Lesson Plan

Levers. Pulleys and Gears - Teacher Explanation is part of the lesson Levers. Pulleys and Gears    Students will learn about levers. pulleys and gears as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

Teacher Explanation

Levers. Pulleys and Gears - Teacher Explanation

Levers. Pulleys and Gears - Objectives Labels is part of the lesson Levers. Pulleys and Gears    Students will learn about levers. pulleys and gears as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

Objectives Labels

Levers. Pulleys and Gears - Objectives Labels

Levers. Pulleys and Gears - Results Tables is part of the lesson Levers. Pulleys and Gears    Students will learn about levers. pulleys and gears as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

Results Tables

Levers. Pulleys and Gears - Results Tables

Levers. Pulleys and Gears - Self Assessment is part of the lesson Levers. Pulleys and Gears    Students will learn about levers. pulleys and gears as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

Self Assessment

Levers. Pulleys and Gears - Self Assessment

In this lesson, students will learn about the basic concepts of levers, pulleys, and gears, and how they are used to make mechanical work easier. They will learn that by using these mechanisms, a smaller force can have a greater effect. The lesson will cover four main objectives: <ul> <li>State that machines can make mechanical work easier.</li> <li>Explain that the longer the lever, the less effort needed to lift a load.</li> <li>Explain that adding pulleys reduces the effort required to lift a load.</li> <li>Describe the effect of a larger cog on a smaller cog.</li> </ul> This lesson is suitable for students in year 3 who have already been introduced to forces and magnets. The lesson plan also has cross-curricular links with design and technology, mathematics, and history. Students will make a simple lever and graph their experimental results, and learn about the history of pulleys and their usage in ancient civilizations. The lesson plan includes activities that will help students understand the concepts of effort, load, energy, fulcrum, pivot, mechanical, pulley, gears, cog, and rotation. Influential scientists such as Archimedes, Hero of Alexandria, Franz Reuleux, and Simon Stevin will be introduced in the lesson. The teacher will need to purchase a gear set as it is not possible to make them in class. The class will participate in a demonstration to show the effort required to lift a load can be reduced by using pulleys. The lesson will also include an activity where students will learn how the classroom door functions as a lever and how the position of the fulcrum affects the effort required to move a load. In conclusion, this lesson is a comprehensive introduction to the basics of levers, pulleys, and gears and how they can be used to make mechanical work easier. Students will learn how simple machines work and be able to apply their understanding to real-world scenarios.

Levers. Pulleys and Gears

Science

Year 5

Forces

Levers, Pulleys and Gears - Presentation

Pzaz is a specialist, primary science provider, with schemes written for the non-specialist primary teacher. Created by a science education expert, Pzaz covers every statement of the National Curriculum for Reception to Year 6.