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Name
Date
Class
18.1 Electric Charge and Static Electricity
1. What happens to an object’s atoms when the object becomes positively charged?
2. The four methods of building up static electricity are
__________________________________________
3.
Building Vocabulary Fill in the blank to complete each statement.
3.
4.
The transfer of charge when electrons move from a charged object to another object
by direct contact is called
.
force is the force between charged objects.
5. The buildup of charges on an object is called
.
6. The law of
______________of charges states that charges are not
created or destroyed but transferred.
7. The transfer of charge from one object to another by rubbing is called _________________
8. The loss of static electricity as electric charges transfer from one object to another is
called
.
9. An electric
is a region around a charged object where the
object’s electric force is exerted on other charged objects.
10. When the electric field of one object causes a transfer of electrons from one part to another in a
second object, without the two objects touching, it is called ______________________ .
.
Write the letter of the correct answer on the line at the left.
11.
A
B
C
D
Atoms contain charged particles called
protons, neutrons, and electrons
protons and electrons
protons and neutrons
electrons and neutrons
12.
A region around a charged object
where the object’s electric force is exerted
on other charged objects is an electric
A field
B outlet
C socket
D power plant
14.
Charges can redistribute themselves
13.
In static electricity, charges
by friction, conduction, polarization, or
A flow continuously
A reduction
B flow intermittently
B production
C build up in an atom
C induction
D build up on an object
D superconduction
If the statement is true, write true. If the statement is false, change the underlined word
or words to make the statement true.
15.
Charges that are different repel each other.
16.
An electric field gets stronger the closer it is to the charge.
17.
Charges do not transfer between objects in polarization or conduction.
18.
Lightning is an example of static discharge.
19.
Electric current is the buildup of charges on an object.
20.
Most objects have some overall charge.
Short answer
21. What is meant by saying an object has an electrical charge?
22. Give an example of how you could charge an object
23. Define static electricity.
24. How could you test to see if something has a static charge?
25. What is an electrical discharge?
26.What evidence is there that a static discharge has taken place?