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001 structure of matter
describe matter
any substance that has weight and takes up space
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001 structure of matter
what cannot be broken down into a simpler substance using ordinary chemical means
elements
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001 structure of matter
define molecule
smallest part of a substance that has all the characteristics of that substance
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001 structure of matter
what type of charge does a proton and electron carry
- proton = positive
- electron = negative
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001 structure of matter
when is an atom considered electrically balanced
when the atom has 8 electrons in the valence shell
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001 structure of matter
what is the term for an atom with 8 electrons in the valence shell
stable
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001 structure of matter
what are the elements that form molecules
- atoms
- (they combine to form molecules)
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002 Insulators and conductors
describe electrical current
the uniform movement of electrons in a specific direction thru a conductor
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002 Insulators and conductors
what type of charge does a normal atom that has lost on electron have?
positive charge
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002 Insulators and conductors
what is an atom that has gained an electron called
negative ion
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002 Insulators and conductors
Identify the materials that are good insulators by placing an “I” in the correct space and the materials that are good conductors by placing a “C” in the correct space.
____a. Rubber.
____b. Glass.
____c. Dry air.
____d. Gold.
____e. Paper.
____f. Copper.
____g. Aluminum.
____h. Zinc.
____i. Silver.
____j. Pure silicon.
- A. I
- B. I
- C. I
- D. C
- E. I
- F. C
- G. C
- H. C
- I. C
- J. C
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003. Unit of measurement, related terms, and effects of current flow
Write the word or words that are appropriate to the given definition or statement.
a. The uniform movement of free electrons in a specific direction.
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003. Unit of measurement, related terms, and effects of current flow
Write the word or words that are appropriate to the given definition or statement.
6.28 × 1018 electrical charges.
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003. Unit of measurement, related terms, and effects of current flow
Write the word or words that are appropriate to the given definition or statement.
One Coulomb passing a given point per second.
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003. Unit of measurement, related terms, and effects of current flow
Write the word or words that are appropriate to the given definition or statement.
Symbol for current used in math formulas.
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003. Unit of measurement, related terms, and effects of current flow
Write the word or words that are appropriate to the given definition or statement.
Symbol for quantity of amperes used in drawings to designate the quantity of amperes
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003. Unit of measurement, related terms, and effects of current flow
List four effects of current flow.
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004. Unit of measurement, related terms, and sources of voltage
Provide the term appropriate to each of the definitions or phrases
The force which causes electrons to move from atom to atom.
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004. Unit of measurement, related terms, and sources of voltage
Provide the term appropriate to each of the definitions or phrases
Unit of measure for “electrical pressure.”
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004. Unit of measurement, related terms, and sources of voltage
Provide the term appropriate to each of the definitions or phrases
"E"
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004. Unit of measurement, related terms, and sources of voltage
Provide the term appropriate to each of the definitions or phrases
Changes mechanical energy into electrical energy
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004. Unit of measurement, related terms, and sources of voltage
Provide the term appropriate to each of the definitions or phrases
Changes heat energy into electrical energy.
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005. Unit of measurement, related terms, and factors that affect resistance
Give the terms that apply to the definitions or phrases below
Unit of measure for electrical resistance
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005. Unit of measurement, related terms, and factors that affect resistance
Give the terms that apply to the definitions or phrases below
When one volt of pressure pushes one ampere of current flow through an electrical path, then one ohm of resistance is present
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005. Unit of measurement, related terms, and factors that affect resistance
Give the terms that apply to the definitions or phrases below
"R"
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005. Unit of measurement, related terms, and factors that affect resistance
Name three factors that affect resistance.
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006. Power
What is defined as the rate of doing work?
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006. Power
What symbol represents power with regards to electricity
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006. Power
How are electrical motors rated?
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006. Power
What is the number of watts per horsepower?
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007. Theories, principles, and terms related to magnetism
What is magnetic material
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007. Theories, principles, and terms related to magnetism
Define residual magnetism
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007. Theories, principles, and terms related to magnetism
What two of the best materials that are used to make man-made permanent magnets?
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007. Theories, principles, and terms related to magnetism
In what direction do the lines of force travel outside a bar magnet?
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007. Theories, principles, and terms related to magnetism
What action takes place when you place the south pole of one magnet near the south pole of another?
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007. Theories, principles, and terms related to magnetism
State the fundamental law of magnetism
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007. Theories, principles, and terms related to magnetism
When do magnetic lines of force cross?
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008. Electromagnetism characteristics
What surrounds all current-carrying conductors?
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008. Electromagnetism characteristics
How can you strengthen the magnetic lines of force around a conductor?
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008. Electromagnetism characteristics
What three items are necessary to have an electromagnet?
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008. Electromagnetism characteristics
What type of core manufacturers prefer in the construction of relays and solenoids?
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009. Chemical and mechanical means of producing voltage
What is the purpose of a battery?
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009. Chemical and mechanical means of producing voltage
What unit of measurement is used to describe the storage capacity of a battery?
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009. Chemical and mechanical means of producing voltage
How can batteries be connected to form a “Battery Bank”?
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010. Types of current flow
Identify each of the statements below as applying to AC voltage or DC voltage by writing “AC” or “DC” in the space provided.
____a. Direct current.
____b. Alternating current.
____c. Electrons flowing in one direction.
____d. Has sine-wave waveform.
____e. Electrons flow in both directions.
____f. Produced by a battery.
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