Charging by Friction: Understanding and Demonstrating the Transfer of Electric Charge Between Insulators

Charging by Friction: Understanding and Demonstrating the Transfer of Electric Charge Between Insulators

Assessment

Interactive Video

Physics, Science, Engineering

10th Grade - University

Hard

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The video explains how rubbing two insulators together can charge them through friction. It distinguishes between conductors and insulators, and describes how electrons transfer between materials, resulting in positive and negative charges. The concept of electrostatic force is introduced, explaining attraction and repulsion between charged objects. A demonstration using polythene rods and a dry cloth illustrates these principles, showing how like charges repel and opposite charges attract.

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2 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the electrostatic force and how does it relate to charged objects?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How can we demonstrate that two charged polythene rods repel each other?

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