ELECTRICAL CRAFT HELPER WITH ALL QUESTIONS AND
ANSWERS
1. a molecule of matter can be divided chemically into smaller particles
called? ANS atoms
2. matter consisting of all the same kind of atoms is called an? ANS element
3. matter consisting of two or more different kinds of atoms is called a? ANS
com- pound
4. the negative charge of a single electron is called a? ANS unit electrical charge
5. most of the mass of an atom is in the? ANS nucleus
6. when an atom gains an electron, it is called? ANS negative ion
7. copper is a good conductor, because the copper atom loosely holds it's? AN
-
valence
8. gold and silver are good conductor of electricity, because the outer orbits
have? ANS one electron
9. when teo negatively charged rods are brought together, they? ANS repel
each other
10. one ampere is equal to? ANS 1 coulomb flowing per second
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, 11. what happens when two unlike materials are rubbed together and then
separated? ANS one will be positive and the other negative
12. connecting two or more metallic objects with a wire or metal strap is
called? ANS bonding
13. grounding minimizes the voltage difference between an object and? ANS -
ground
14. humidity has no effect in controlling a static charge on the surface of? ANS
only liquids.
15. a static charge is generated by liquids when the liquids are? ANS moving
and contact other materials
16. the charges on the surface of a liquid in a container can be made harmless
if the container is? ANS purged
17. greater static charges are developed on smooth surfaced materials than
on rough surfaced materials because of the? ANS larger surface contact
18. what is applied to rubber or that leather belts to prevent the generation of
static charges? ANS a conductive dressing
19. the vest way to remove static electricity from machines is to? ANS ground
the framework
20. dust can be removed from the and in a plant by the use of a? ANS
electrostatic precipitation
21. the six primary methods of producing a voltage are chemical action ,
magnetism, friction, ANS heat, light, and pressure
22. electricity is produced by chemical action in a?p ANS storage battery cell
2/9
ANSWERS
1. a molecule of matter can be divided chemically into smaller particles
called? ANS atoms
2. matter consisting of all the same kind of atoms is called an? ANS element
3. matter consisting of two or more different kinds of atoms is called a? ANS
com- pound
4. the negative charge of a single electron is called a? ANS unit electrical charge
5. most of the mass of an atom is in the? ANS nucleus
6. when an atom gains an electron, it is called? ANS negative ion
7. copper is a good conductor, because the copper atom loosely holds it's? AN
-
valence
8. gold and silver are good conductor of electricity, because the outer orbits
have? ANS one electron
9. when teo negatively charged rods are brought together, they? ANS repel
each other
10. one ampere is equal to? ANS 1 coulomb flowing per second
1/9
, 11. what happens when two unlike materials are rubbed together and then
separated? ANS one will be positive and the other negative
12. connecting two or more metallic objects with a wire or metal strap is
called? ANS bonding
13. grounding minimizes the voltage difference between an object and? ANS -
ground
14. humidity has no effect in controlling a static charge on the surface of? ANS
only liquids.
15. a static charge is generated by liquids when the liquids are? ANS moving
and contact other materials
16. the charges on the surface of a liquid in a container can be made harmless
if the container is? ANS purged
17. greater static charges are developed on smooth surfaced materials than
on rough surfaced materials because of the? ANS larger surface contact
18. what is applied to rubber or that leather belts to prevent the generation of
static charges? ANS a conductive dressing
19. the vest way to remove static electricity from machines is to? ANS ground
the framework
20. dust can be removed from the and in a plant by the use of a? ANS
electrostatic precipitation
21. the six primary methods of producing a voltage are chemical action ,
magnetism, friction, ANS heat, light, and pressure
22. electricity is produced by chemical action in a?p ANS storage battery cell
2/9
