Physical Science

Chapter 7: Electricity

Section 1 Self-Check Quiz-Eng.

1.
What is static electricity?
A)electricity produced by like electric charges attracting
B)electricity used for powering radios and televisions
C)a buildup of balanced electric charges
D)a buildup of excess electric charge
2.
What exerts the force that causes other electric charges to move?
A)electrical poles
B)the electric field
C)insulators
D)conductors
3.
The law of conservation of charge states that __________.
A)the mass of all substances present before a chemical change equals the mass of all the substances remaining after the change
B)charge can be created and destroyed but can not be transferred
C)electric charge is not created or destroyed
D)charge is not created or destroyed or transferred from object to object
4.
Elements that are shiny and good conductors of electricity are __________ .
A)metals
B)nonmetals
C)metalloids
D)colloids
5.
The negatively charged particles in an atom are called __________.
A)protons
B)electrons
C)neutrons
D)negatrons
6.
Why are metals good conductors of electricity?
A)Outer-level electrons are weakly held.
B)Outer-level electrons are tightly held.
C)Metals do not share the electrons in their outer energy levels.
D)The outer energy levels of metals are nearly filled.
7.
The process of transferring charge by touching is called __________.
A)electron exchange
B)covalent charging
C)charging by contact
D)charge conveyance
8.
Which of the following statements about electric charges is true?
A)Objects must be touching one another to exert electrical force.
B)Air cannot conduct electricity, it is conducted only by solid materials.
C)Opposite electric charges always repel one another.
D)Electrical forces act at a distance.
9.
__________ is a large static discharge through the air between two objects.
A)Grounding
B)Voltage
C)A fuse
D)Lightning
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