Week 1_period 1_PHY70A

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8.3 Electric Fields

Lesson

Objective:

Success Criteria:

Textbook & KPI Ref:

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4

By the end of the lesson, students will be able to accurately describe
and illustrate the electric field generated by charged conductors and

insulators, demonstrating their understanding through written

explanations, diagrams, and problem-solving exercises.

Success Criteria

1. Conceptual Understanding: Students can describe the characteristics of the electric field

generated by charged conductors and insulators.

2. Illustration: Students can draw correct diagrams showing the electric field lines around

charged conductors and insulators.

3. Problem-Solving: Students can solve basic problems related to electric fields, including

calculating the strength and direction of the field at specific points.

Physics for Scientists and Engineers- Cengage

Open Ended

Problem 2: Electric Field Inside a Conductor

• Description: Explain why the electric field inside a conductor in electrostatic equilibrium is zero.

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1.Electric Field: A region around a charged particle where the particle

exerts an electric force on other charged particles.

2.Charged Conductor: A material that allows the flow of electric charge

and distributes charge evenly on its surface.

3.Charged Insulator: A material that does not allow the flow of electric

charge and holds charge in a fixed position.

4.Electrostatic Equilibrium: A state where the net electric field within a

conductor is zero, and any excess charge resides on the surface.

5.Electric Field Line Diagrams: Visual representations of the magnitude

and direction of electric fields around charged objects.

https://quizlet.com/ae/270146814/83-electric-fields-flash-cards/?i=v291m&x
=1qqt

Vocabulary

By the end of the lesson, students will be able to accurately describe
and illustrate the electric field generated by charged conductors and

insulators, demonstrating their understanding through written

explanations, diagrams, and problem-solving exercises.

07/09/202
4

Match

Match the following

• .Electric Field

• Charged Conductor

• Charged Insulator:

• Electrostatic Equilibrium:

• Electric Field Line Diagrams:

A region around a charged particle where

A material that allows the flow of elect

A material that does not allow the flow

A state where the net electric field wit

Visual representations of the magnitude

• A region around a charged particle where

• A material that allows the flow of elect

• A material that does not allow the flow

• A state where the net electric field wit

• Visual representations of the magnitude

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Starter Activity (5 mins)

• Activity:
• Introduce the concept of electrostatic equilibrium and

how the electric field inside a charged conductor is zero.

07/09/202
4

By the end of the lesson, students will be able to accurately describe and

illustrate the electric field generated by charged conductors and insulators,

demonstrating their understanding through written explanations, diagrams, and

problem-solving exercises.

Multiple Choice

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I Do (Teacher Instruction)

• The principle that the excess charge of a solid

conductor in electrostatic equilibrium is on its surface,
and the electric field inside the conductor is zero.

• The electric field characteristics at the surface of

charged conductors and insulators.

• Electric Fields: Crash Course Physics #26

07/09/202
4

By the end of the lesson, students will be able to accurately describe and

illustrate the electric field generated by charged conductors and insulators,

demonstrating their understanding through written explanations,

diagrams, and problem-solving exercises.

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and innovation

We Do (Modelling & Practice)
Example:
• Work through an example problem calculating the

electric field generated by a charged conductor.

• Demonstrate how to draw electric field lines for various

charge distributions.

• https://www.physicsclassroom.com/Physics-Interactives/

Static-Electricity/Electric-Field-Lines/Electric-Field-Lines-I
nteractive

07/09/202
4

By the end of the lesson, students will be able to accurately describe and illustrate
the electric field generated by charged conductors and insulators, demonstrating
their understanding through written explanations, diagrams, and problem-solving

exercises.

Draw

Demonstrate how to draw electric field lines for various charge distributions.

Physics Simulation: Electric Field Lines

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You Do (Student-Led)

• Activity:
• Students will work in pairs to solve problems involving

the calculation of electric fields and drawing electric
field line diagrams for conductors and insulators.

• Provide different configurations of charges for students

to analyze and depict the electric field lines.

07/09/202
4

By the end of the lesson, students will be able to accurately describe
and illustrate the electric field generated by charged conductors and

insulators, demonstrating their understanding through written

explanations, diagrams, and problem-solving exercises.

Open Ended

Problem 1: Electric Field of a Spherical Conductor

• Description: A spherical conductor of radius RRR carries a total charge QQQ. Calculate the electric field at a distance rrr from the center of the sphere for r>Rr > Rr>R.

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Plenary & Reflection (5 mins)

By the end of the lesson, students will be able to accurately describe
and illustrate the electric field generated by charged conductors and
insulators, demonstrating their understanding through written
explanations, diagrams, and problem-solving exercises.

07/09/202
4

Success Criteria:

Success Criteria

1. Conceptual Understanding: Students can describe

the characteristics of the electric field generated by
charged conductors and insulators.

2. Illustration: Students can draw correct diagrams

showing the electric field lines around charged
conductors and insulators.

3. Problem-Solving: Students can solve basic problems

related to electric fields, including calculating the
strength and direction of the field at specific points.

Plenary Activity:

Use digital tools for exit
tickets like Microsoft Forms.

Things I learned?

Audio Response

• Today I learned the following about electric fields generated by conductors and insulators…

• The most interesting part of the electric field lab was…

• I need to improve my understanding of…

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