Lesson Plan: Electron Beams | Nagwa Lesson Plan: Electron Beams | Nagwa

Lesson Plan: Electron Beams Physics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to calculate the electrical properties of an electron beam and describe the uses of electron beams in imaging.

Objectives

Students will be able to

  • use the formula 𝐸=𝑞𝑉 to find the kinetic energy, 𝐸, of a particle of charge 𝑞 that has been accelerated across a potential difference 𝑉,
  • combine 𝐸=𝑞𝑉 with 𝐸=12𝑚𝑣 and 𝑊=𝐹𝑑,
  • use the formula 𝐼=𝑛𝑞𝑡 to find the current of a beam of 𝑛 particles with charge 𝑞 that pass a point in space in time 𝑡,
  • identify and describe how a beam of charged or neutral particles will be affected by charged plates,
  • identify and describe how a charged or neutral particle will move when in a uniform electrical field.

Prerequisites

Students should already be familiar with

  • electrons, protons, neutrons, and alpha particles,
  • electric charges,
  • electric currents,
  • electric potential difference.

Exclusions

Students will not cover

  • the wave nature of electrons,
  • electron diffraction,
  • cathodoluminescence.

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