Answer:
When silk is rubbed on a glass rod, an electrostatic charge is generated in a phenomenon known as the triboelectric effect. It is this electric charge that gives you a shock in winter when your rubber-soled shoes rub against a carpeted floor. The triboelectric series is a list of materials sorted according to their electrostatic behavior; using the list, you can predict the electrostatic effects when silk is rubbed on a glass rod.
Explanation:
1. Rubbing a glass rod with a silk cloth is an example of charging by
friction
2. Rubbing a glass rod with a silk cloth will cause the rod to become more ____charged because it is losing electrons and the cloth to become more ____ charged because it is gaining electrons.
positively ; negatively
3. All matter is made up of both positive and negative charges, but we can only transfer the ___ charges.
negative
4. Charging by ______is a method used to charge an object without actually touching the object to any other charged object.
induction
5. When a charged object is brought near (without touching) a neutral object, this induces the electrons within the neutral object to move. This is an example of a temporary charge by _____.
induction
6. Grounding allows charged objects to become neutral by electrons either flowing from the earth to the object or electrons flowing from the object to the earth through a conductor.
True
7. When an uncharged student (standing on an insulating mat) touches a negatively charged Van de Graaff generator, this is an example of charging by ______.
conduction
8. A positively charged object will be repelled by a negatively charged object because the charges are different.
False
9. Which of the following is an example of static electricity?
A build up of charges on a sock from a dryer
10. According to the image below, the like charges within the metal leaves at the bottom in the glass of an electroscope will be ____ by each other and therefore will ____.
repelled , spread further apart
