Friction - Presentation is part of the lesson Friction    Students will learn about friction as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

<p>In a physics presentation about friction, students are introduced to the concept that friction occurs when two surfaces slide against each other, and its effects on motion. The learning objectives are clear: students should be able to state that friction happens during the sliding of surfaces, recognize that friction causes objects to slow down, and describe how friction affects deceleration. The presentation includes practical examples to illustrate the principles of friction, such as the familiar experience of rubbing cold hands together to generate warmth. Miss Stevens explains to her class that the heat produced from rubbing is due to friction, and the more forceful the rubbing, the more heat is generated. The lesson also covers safety, warning against the reduced friction when walking on ice and the potential for slipping.</p>

<p>The presentation continues with different scenarios to explore the concept of friction further. One example involves a handkerchief and a cup, demonstrating that friction exists between the fabric and the table, as well as between the mug and the fabric. Students learn that friction can vary in strength depending on how quickly or forcefully an object is moved. Another section delves into the relationship between mass and friction, explaining that increased mass can lead to increased friction, especially on rougher surfaces. The presentation also discusses experiments with cars on ramps and balloon-powered cars, showing that smoother surfaces result in less friction, allowing the car to travel further, while also considering other factors like the car's mass and the amount of air in the balloon. By the end of the presentation, students are expected to understand the basic principles of friction and how different factors can affect it.</p>

Friction - Lesson Plan is part of the lesson Friction    Students will learn about friction as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

Friction - Lesson Plan

Friction - Teacher Explanation is part of the lesson Friction    Students will learn about friction as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

Teacher Explanation

Friction - Teacher Explanation

Friction - Objectives Labels is part of the lesson Friction    Students will learn about friction as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

Objectives Labels

Friction - Objectives Labels

Friction - Results Tables is part of the lesson Friction    Students will learn about friction as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

Results Tables

Friction - Results Tables

Friction - Self Assessment is part of the lesson Friction    Students will learn about friction as part of their learning about forces, as specified by the national curriculum in England: science programmes of study.

Self Assessment

Friction - Self Assessment

<p>In this lesson, students will learn about the effects of friction on moving surfaces. The objective of this lesson is for students to be able to identify that friction occurs when two surfaces slide against each other, understand that friction slows objects down, and describe the relationship between the amount of friction and the rate of deceleration. This lesson aligns with the Year 3 science curriculum on Forces and Magnets and has cross-curricular links to Design and Technology and Mathematics. </p> <p>Students will be introduced to the science behind friction through a teacher demonstration of the "Handkerchief and the Cup" activity. They will then participate in the "Does Mass Affect Friction?" activity where they will test the amount of friction on different surfaces with varying amounts of mass. The results of this experiment can be graphed for mathematical analysis. </p> <h2>Misconceptions and Corrections</h2> <p>It is important to note that students may have misconceptions about friction. Some students may think that lubricants eliminate friction, when in reality, they only reduce friction. Additionally, students may believe that friction is not useful when in fact, it is essential in slowing down machines. Finally, students may believe that smooth surfaces have no friction when all materials show friction to a certain extent.</p> <h2>Keywords</h2> <ul> <li>Friction</li> <li>Decelerate</li> <li>Smooth</li> <li>Rough</li> <li>Surface</li> </ul> <h2>Influential Scientists</h2> <p>This lesson highlights the work of several influential scientists in the field of friction including Leonardo da Vinci, Guillaume Amontons, Charles Augustin de Coulomb, Charles Hatcbett, Theodor Reye, and David Tabor.</p> <h2>Important Lesson Guidance</h2> <p>It is important to note that before the lesson, you will need to collect 32 plastic bottle caps and punch holes in the center of each cap. The "Does Mass Affect Friction?" activity requires materials such as Tupperware tubs, masses, string, force meters, a 100ml measuring cylinder, and aluminium foil. The experiment is performed in groups of four and the results can be recorded in a table for analysis. It is important to keep the balloon cars for Lesson 5.3. </p>

Friction

Science

Year 5

Forces

Friction - Presentation

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