1. Charging by Contact – Conduction

2. Charging by Contact – Conduction
Charging by Conduction: charging an object by contact with a charged object
charging by contact

3. Charging by Contact – Conduction
-negative object touched to a neutral object
Before touching After touching
neutral charged

4. Charging by Contact – Conduction
-negative object touched to a neutral object
Before touching After touching
neutral charged

5. Charging by Contact – Conduction
-positive object touched to a neutral object
Before touching After touching
charged neutral

6. Charging by Contact – Conduction
-negative object touched to a neutral object
Before touching After touching
neutral charged

7. Charging by Contact – Conduction
Electroscope: a device used to detect static charge
electroscope charging

8. Charging by Contact – Conduction
Electroscope: a device used to detect static charge
-the electroscope is all metal insulated from the rest of the desk by a plastic collar

9. Charging by Contact – Conduction
Electroscope: a device used to detect static charge
-the electroscope is all metal insulated from the rest of the desk by a plastic collar
-any charge added to the electroscope will spread out all through it

10. Charging by Contact – Conduction
Electroscope: a device used to detect static charge
-the electroscope is all metal insulated from the rest of the desk by a plastic collar
-any charge added to the electroscope will spread out all through it
-anytime the leaves get a charge, they have the same charge so they repel

11. Charging by Contact – Conduction
Electroscope: a device used to detect static charge
-the electroscope is all metal insulated from the rest of the desk by a plastic collar
-any charge added to the electroscope will spread out all through it
-anytime the leaves get a charge, they have the same charge so they repel
-leaves apart indicate a static charge

12. Charging by Contact – Conduction
Electroscope: a device used to detect static charge
-charging with a negative object
negative (4-)
Before Contact
neutral

13. Charging by Contact – Conduction
Electroscope: a device used to detect static charge
-charging with a negative object
negative (1-)
After Contact
negative (3-)

14. Charging by Contact – Conduction
Electroscope: a device used to detect static charge
-charging with a negative object
negative (1-)
After Contact
-leaves repel due to like charges
negative (3-)

15. Charging by Contact – Conduction
Electroscope: a device used to detect static charge
-charging with a positive object
positive (4+)
Before Contact
neutral

16. Charging by Contact – Conduction
Electroscope: a device used to detect static charge
-charging with a positive object
positive (1+)
After Contact
positive (3+)

17. Charging by Contact – Conduction
Electroscope: a device used to detect static charge
-charging with a positive object
positive (1+)
After Contact
-leaves repel due to like
charges
positive (3+)