Science 8
Static Electricity

 

I.Static Electricity:Definition;__________________________________________________________

II.How is static electricity produced ?____________________________________________________

A. Examples:

1-Electrophorus Plate__________________________________________________________

2-Rubber rod and fur__________________________________________________________

III. Characteristics of Static Electricity

A. What effect does a charged object have on uncharged objects ?

1-Rubber rod and paper____________________________________________________

2-Comb and stream of water________________________________________________

B. There are different types of charges

1-Negative Charges: due to a________________________________________________

2-Positive Charges: due to a_________________________________________________

C. Law of Electrostatics

1-Like charges_______________each other

(a)-a charged rubber rod ___________another charged rubber rod

2-Opposite charges__________each other

(b)- a charged rubber rod ___________a charged glass rod

D. Static charges occur on the___________________of an object.

1-What does an electroscope do when a charged object is approaches it when it is first outside of                  and then inside of a wire cage?
            ___________________________________________________________________________

2-What practical use is there for this information?____________________________________
            ___________________________________________________________________________

E. Static electricity can be conducted across object surfaces and through direct contact.

1-Spark board________________________________________________________________

2-Leyden jar and a human chain__________________________________________________

F. Static electricity can be stored

1-Leyden jar: a type of capacitor____________________________________________

2-Pin on bonnet of generator: __________________store a charge

IV. Uses and Applications

A. To power microscopic machines(nanotechnology)

1-Spinning disk_______________________________________________________________

2-Racing ball_________________________________________________________________

B. Jacob's ladder: What causes the ____________ ________ ___________ ________?

C. Electrostatic wind

1-Plastic streamers_____________________________________________________________

2-Pin on bonnet_______________________________________________________________

D. Wireless transmission of electricity?

1-Tesla coil__________________________________________________________________