OUTCOME
By the end of this lesson I will be able to describe and explain how a charged particle can be manipulated by an electric and magnetic field.
The cyclotron uses an alternating electrically charged "D" plates the continuously attract a charge particle as it turns in a magnetic field
LEARNING TASKS
Explain
1. What do the "D" plates do to the charge particle?
2. What does the magnetic filed do the the charged particle?
3. Why does the electric charge alternate in the "D" plates?
4. What happens to the radius of the particle as it gets faster and faster?
5. Why does the particle continue to spiral outwards?
6. What happens when the charged particle reachers the slit?
Explore and Elaborate
Evaluate
Demo: Van de Graaff and Crooke's tube
Demo: Examining the CRO and a magnet
1. What is the VG doing?
2. What is happening when you see a spark from the VG?
3. Why does the Crooke's tube use a phosphorescent screen.
4. What effect does the magnet have on the Cathode ray