The first topic makes use of activities based on card sorting and arranging. The baryon, meson and lepton cards suggested here...

Teaching Guidance 16-19

Demonstration: in this simple demonstration with a fine beam tube you can show an electron beam. You can also bend it using an...

Practical Activity 14-16

Demonstration: this demonstration shows that electron streams travel in straight lines. It is useful preparation for measuring...

Practical Activity 14-16

Demonstration: the deflection tube allows you to show the parabolic path of an electron beam passing through a uniform...

Practical Activity 14-16

Demonstration: applying a constant voltage to the deflection plates will move the electron spot. Applying an alternating...

Practical Activity 14-16

Demonstration: this demonstration shows that a metal cross blocks off a beam of electrons. Using a magnet, you can show how...

Practical Activity 14-16

Demonstration: the main purpose of this experiment is to explain the principle of an electron gun. You can also use the...

Practical Activity 14-16

Demonstration: a qualitative experiment to show the principle of a force on a charged body between two parallel plates.

Practical Activity 14-16

Demonstration: this shows that an electron beam is diffracted when it passes through graphite, suggesting that electrons have...

Practical Activity 14-16

Demonstration: this experiment shows that a cathode ray is made up of particles with a constant ratio of charge to mass (e/m)...

Practical Activity 14-16

Demonstration: in this demonstration, students find the mass of a single coin by measuring handfuls of coins. The mass of a...

Practical Activity 14-16

Demonstration: this experiment, conducted by Perrin in 1895, was crucial in the very early studies of electron beams.

Practical Activity 14-16