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Electrical Charges
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by friction, the wool transfers electrons to the balloon. Therefore... The balloon becomes ______ charged and the wool becomes __________ charged
negatively; positively
If you rub a balloon with a wool cloth: The friction causes the wool to transfer _______ to the balloon
electrons
The charges are transferred by ________
 
friction
 
electricty
 
moving around
 
the internet
When electric charge builds up on an object, it is known as __________
static electricity
The strength of an electric field depends on ____________ and ________
the size of the charge; the distance away from the charge
________ charges attract
unlike (different)
________ charges repel
like (same)
A charge experiences an electric force when it is placed in an_______________
 
electric field
 
magnetic field
 
gravitational field
 
soccer field
An atom that loses electrons is __________
 
positive
 
negative
An atom that gains electrons is ___________
 
negative
 
positive
Atoms may become positive or negative by gaining or losing _______
electrons
An electric __________ can be positive or negative
charge