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WorksheetsConductors
Total questions: 35
Worksheet time: 18mins
What are the 2 popular terms used to describe the roles of Voltage in a circuit?
Electromotive Force & Potential Difference
Force & Potential
Electroforced Motion & Potential Indifference
Watts & Voltas
Which of the following increases the resistance in a conductor?
Making the cable length longer
Increasing the temperature
Reducing the Cross-Sectional area
(mm2)
All of the above
How do we get voltage via Magnetism?
From Solar Panels
From a rotating device
From Battery Cells
From a difference in heat
How do we get voltage via Light Energy?
From Solar Panels
From a rotating device
From Battery Cells
From a difference in heat
What is another name for the Valence Shell?
N Shell
K Shell
M Shell
L Shell
In a circuit, what do a heater, a light and a motor have in common?
They are all using resistance to produce a load and a result
They all have the same ohms value
They are all using conductors to produce a load and a result
They all provide the same benefits
What is Static Electricity?
A stated value of electricity
Electricity that is not moving
Electricity that doesn't know what it wants to do
An excess of electrons that gather on a surface due to friction
What is conventional current flow?
The early thought that current flows from positive to negative
The notion that is used in circuit diagrams and formulas
The early thought that current flows from negative to positive
The way water flows in a river
Which best describes Elements?
Formed when different elements combine
The basic building blocks of all matter
Anything that has mass and occupies space
Has a half filled valence shell
What is Electromotive Force?
How much torque is applied by a screwdriver
The electrical pressure that causes electric current to flow in a circuit
A measurable difference between conductors
The role of steam in moving a train along the track
How do we get voltage in a Thermocouple?
From Solar Panels
From a rotating device
From Battery Cells
From a difference in heat
What is not one of the three states of matter?
Liquid
Solid
Compound
Gas
What is Resistivity measured in?
Ohms
Hertz
Ohm-Watts
Ohm-Metres
Which best describes a Proton?
Has a positive charge
Has no charge
Has a negative charge
Has mass and occupies space
If we didn't include a higher resistance load in a circuit, what would happen through our low resistance conductor?
It would work just great
It wouldn't work at all
An overload
A short circuit
Insulators have low resistivity
True
False
What test proves a high level of Resistivity?
Insulation Resistance
Loop Impedance
Resistance
Voltage test
Is an Insulator...
An atom that has half of it's valence electrons?
An atom that has hardly any valence electrons?
An atom that has all/most of it's valence electrons?
An atom that has stable valance neutrons?
How do we get voltage via chemial reaction?
From Solar Panels
From a rotating device
From Battery Cells
From a difference in heat
What test proves a low level of Resistivity?
Insulation Resistance
Loop Impedance
Resistance
Voltage test
What do the Protons and Neutrons form in the middle of the Atom?
The Nucleus
The Bond
The Valence
The Protron effect
Which of the following decreases the resistance in a conductor?
Reducing the length
Lowering the temperature
Increasing the Cross - Sectional area
(mm2)
All of the above
What is Potential Difference in a circuit?
The electrical force that causes current to move in a circuit
The imagined ability for voltage to exist
A disaggreement between you and your boss
A measurable difference between 2 conductors
Why is it important to incude a higher resistive conductor in a circuit?
Because it is expensive
So there will be a load for the voltage and current to be used for
It is not important
because we need resistance
Which best describes a Neutron?
Has a positve charge
Has no charge
Formed when different elements combine
Has a negative charge
What best describes Matter?
Formed when elements combine
The basic building block of all matter
Has a positve charge
Anything that has mass & occupies space
What is the difference between EMF & Potential Difference?
Nothing, they are the same thing
EMF is only at the source of power; P.D. can be measured at both source & load
P.D. is only at the source of power; EMF can be at both source & load
One is to do with voltage, and the other is to do with current
Which best describes a Conductor?
An Atom that has a half filled valence shell.
An Atom with a valence shell that is less than half filled
An atom with a negative charge
An atom that has a valence shell that is more than half filled
What best describes an Insulator?
The valence shell is half-filled
The valence shell is less than half-filled
The valence shell is more than half-filled
Has a positive charge
What is a compound?
Something that is formed when elements combine
Anything that occupies space & has mass
Something that has no charge
Basic building blocks of all matter
Which best describes a semi-conductor?
It's valence shell is more than half-filled
It's valence shell is less than half-filled
It has a positve charge
It's valence shell is half-filled
Which best describes an Electron?
It has no charge
It has a negative charge
It has a positive charge
It is formed when different elements combine
Conductors have low resistivity
True
False
Why are valence shell electrons able to move between atoms?
The shell is cracked
They are not held to anything
Because there is more than 8 of them
They are the furtherest away from the nucleus
For Electricians, what is the most important aspect of Atomic Theory to know about?
Conductors
Semiconductors
Insulators
All of the above
