SLTC Final Questions and Correct Answers
T/F: ALL ATOMS CONTAIN PROTONS AND ELECTRONS Ans:
TRUE
T/F: PROTONS ARE ALWAYS IN THE CENTER OF THE ATOM Ans:
TRUE
THE CENTER OF THE ATOM IS KNOW AS WHAT? Ans: NUCLEUS
T/F: ELECTRONS ORBIT AROUND THE NUCLEUS Ans: TRUE
PROTONS ARE ALWAYS Ans: POSITIVELY CHARGED
NEUTRONS ARE ALWAYS Ans: NUETRAL OR NO CHARGE
ELECTRONS ARE ALWAYS Ans: NEGATIVELY CHARGED
TWO IMPORTANT FACTORS TO UNDERSTANDING ATOMS Ans: 1.
OPPOSITE ATTRACT AND LIKE REPEL
2. FASTER AN OBJECT SPINS THE GREATER THE FORCE
OUTTER ORBIT OF AN ATOM IS CALLED Ans: VALENCE SHELL
3 OR FEWER ELECTRONS WILL RELEASE EASY IS KNOWN AS Ans:
CONDUCTOR
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ATOMS LIKE COPPER CONTAIN HOW MANY VALENCE ELECTRONS
TO BE THE BEST CONDUCTOR Ans: 1 VALENCE ELECTRON
ATOMS THAT CONTAIN 5 OR MORE ELECTRONS IN THE VALENCE
SHELL ARE KNOWN AS Ans: INSULATORS
ATOMS CONTAINING 4 ELECTRONS IN THE VALENCE SHELL ARE
KNOWN AS Ans: SEMICONDUCTORS
T/F: CHEMICAL REACTION AND MAGNETISM ARE MORE
COMMONLY USED TO PRODUCE LARGE AMOUNTS OF
ELECTRICITY FOR GENERAL USE Ans: TRUE
STATIC MEANS WHAT Ans: NOT MOVING, A CHARGE NOT A
CURRENT
WHAT IS THE CORNER STONE OF ELECTRIC GENERATION Ans:
MAGNETISM
T/F: WITHOUT MAGNETISM ALTERNATING CURRENT WOULD NOT
BE POSSIBLE Ans: TRUE
CURRENT FLOWING THROUGH DC DOES NOT CHANGE UNLESS
Ans: SWITCHED ON OR OFF
QUANTITY MEASUREMENT OF ELECTRONS Ans: ONE COULOMB
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THE FORCE CAUSING THE ELECTRONS OR CURRENT TO FLOW IS
MEASURED IN Ans: VOLTS
VOLTS IS ALSO REFERRED TO AS Ans: ELECTRICAL PRESSURE
RESISTANCE IS MEASURED IN UNITS CALLED Ans: OHMS
VOLTAGE AFFECTS MANY THINGS LIKE Ans: 1. AMOUNT OF
INSULATION NEEDED
2.SEPARATION REQUIRED BETWEEN LINE CONDUCTORS
3.SAFE WORKING PRACTICES
4.TYPES OF TOOLS NEEDED
RATE OF 1 JOULE OF WORK IN 1 SECOND IS THE BASIC UNIT OF
POWER AND IS CALLED Ans: WATT
1 HP IS EQUIVALENT TO HOW MANY WATTS Ans: 746
746 WATTS IS EQUIVALENT TO HOW MANY KILOWATTS Ans:
0.746
THE RELATIONSHIP BETWEEN CURRENT, VOLTAGE, AND
RESISTANCE WAS DESCRIBED IN A FORM COMMONLY REFERRED
TO AS Ans: OHM'S LAW
ON THE POWER WHEEL 'E' IS WHAT Ans: VOLTAGE
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MEASURED IN VOLTS (V)
ON THE POWER WHEEL 'I' IS WHAT Ans: CURRENT
MEASURED IN AMPERES (A)
ON THE POWER WHEEL 'R' IS WHAT Ans: RESISTANCE
MEASURED IN OHMS
ON THE POWER WHEEL 'P' IS WHAT Ans: POWER
MEASURED IN WATTS (W)
POWER IS DEFINED AS Ans: THE RATE AT WHICH WORK IS DONE
ONE WATT IS DEFINED AS Ans: AMOUNT OF POWER PRODUCED
WHEN ONE VOLT CAUSES ONE AMPERE OR CURRENT TO FLOW
POSITIVE VOLTAGE CAUSES CURRENT TO FLOW IN WHICH
DIRECTION Ans: AWAY FROM THE GENERATING STATION
NEGATIVE VOLTAGE CAUSES CURRENT TO FLOW IN WHICH
DIRECTION Ans: FLOW TOWATRDS THE GENERATING STATION
THREE THINGS NEEDED TO PRODUCE ALTERNATING CURRENT
Ans: 1. CONDUCTOR
2.MAGNETIC FIELD
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