1. Thomson’s Discovery of the Electron Clicker Activities

2. A charge will pass through the region shown below. Initially there is no magnetic or electric field in the region. Observe the path of the charge.

3. A magnetic field will be turned on as shown. The x’s mean that the field is directed into the page. Observe the path of the charge now.

4. Answer the following on your own.

5. What is the sign of the charge. 12345 1. + 2. - 3. Insufficient Information

6. Consult with your neighbors and answer again.

7. What is the sign of the charge. 12345 1. + 2. - 3. Insufficient Information

8. Now instead of a magnetic field, an electric field will be created by charging the plates as shown.

9. Answer the following on your own

10. Predict the direction the charge will be deflected by the electric field 12345 1. Up 2. Down

11. Consult with your neighbor and answer again.

12. Predict the direction the charge will be deflected by the electric field 12345 1. Up 2. Down

13. Answer the following on your own

14. Predict the path of the charge when both fields are turned on 12345 1. Will wiggle back and forth 2. Will deflect first one direction then the other 3. Will go straight 4. Some other answer

15. Consult with your neighbors and answer again.

16. Predict the path of the charge when both fields are turned on 12345 1. Will wiggle back and forth 2. Will deflect first one direction then the other 3. Will go straight 4. Some other answer