Friday, February 12, 2010

Electric Charges. True or False.?

Neutrons are negitively charged?





Equal number of protons and electrons the atom is neutral?





The accumulation of electric charges on an object is called magnetism?





The electric field caused by an electron is weakest near the electron.





An electric field becomes weaker as distance from the electron increases?





A conductor is a material that allows electrons to flow through is EASILY?





Metals are poor conductors of electricity?





plastics, rubber, wood and glass are good conductors?





Earth serves as a conductor of electricity?





The presence of electric charges can be detected with an electroscope?





The leaves of an electroscope hang straight down whent he device receives a charge?





If both leaves of an electroscope receives a negitive charge, the leaves will attract each other?





When an object loses electrons, it gains a negitive charge?





if it is wrong, tell me why ? :)





THANKS! :]Electric Charges. True or False.?
check out the physics text booksElectric Charges. True or False.?
almost all wrong
certainly I can answer these but WHAT are you gonna learn? Neutrons are neutral. Learn the rest yourself
Neutrons are negitively charged? FALSE, they are neutral.





Equal number of protons and electrons the atom is neutral? TRUE.





The accumulation of electric charges on an object is called magnetism? FALSE.





The electric field caused by an electron is weakest near the electron. FALSE. E-Field drops off as you move away from the charge.





An electric field becomes weaker as distance from the electron increases? TRUE





A conductor is a material that allows electrons to flow through is EASILY?





Metals are poor conductors of electricity? FALSE, they are good conductors





plastics, rubber, wood and glass are good conductors? FALSE, they are good insulators.





Earth serves as a conductor of electricity? Sort of, Earth is a ';ground'; or source of electrons for things like lightning rods. (But if you try to use earth as a wire in a circuit, it is not that good of a conductor. This is an ill conceived question.)





The presence of electric charges can be detected with an electroscope? TRUE





The leaves of an electroscope hang straight down whent he device receives a charge? FALSE. The charge makes the leaves repel eachother.





If both leaves of an electroscope receives a negitive charge, the leaves will attract each other? FALSE. Like charges repel.





When an object loses electrons, it gains a negative charge? FALSE. The object would gain a positive charge.
  • long hair styles
  • No comments:

    Post a Comment