ECC Test 1 Questions with Correct Answers Latest Update 2025/2026
.1 - Answers Tenths
.01 - Answers Hundredths
.001 - Answers Thousandths
?/2 - Answers Numerator
1/? - Answers Denominator
Matter - Answers Anything that has mass and takes up space
Element - Answers A substance that cannot be broken down into simpler substances
Molecule - Answers two or more atoms held together by covalent bonds
Compound - Answers substance formed by the chemical combination of two or more elements
in definite proportions
Atom - Answers the basic unit of a chemical element.
subatomic particles - Answers protons, neutrons, electrons
Electrons - Answers Negatively charged particles
Protons - Answers Positively charged particles
Neutrons - Answers neutral charge
kinetic energy - Answers energy of motion
potential energy - Answers stored energy
What must be done for an electron to remain in orbit ? - Answers Cannot gain or lose energy
What is Light energy called ? - Answers photons
What is light? - Answers a form of energy
Paul exclusion principle - Answers 2(n)^2
How much will each shell contain ? - Answers A maximum of 2(n)^2 electrons
Most outer shell of an electron - Answers Valence
What is ionization ? - Answers process by which an atom gains or loses electrons to become a
negatively or positively charged atom
, What determines the valence of an atom ? - Answers the number of electrons in the outermost
shell
What is electron movement called? - Answers Electrical current
What does Coulomb's Law state? - Answers states that the electrostatic force between two
charged objects is directly proportional to the product of the charges on each object and
inversely proportional to the square of the distance between them (like charges repel unlike
charges attract)
What is the difference between 2 bodies? - Answers Electromotive Force (EMF) or voltage (v)
What is electromotive force? - Answers is an energy transfer to an electric circuit per unit of
electric charge, measured in volts.
Kilovolt (kV) - Answers equal to 1000 volts
millivolt (mV) - Answers a thousandth of a volt
microvolts (uV) - Answers 1,000,000 times smaller than a Volt
Where does the flow of electricity travel ? - Answers From negative to positive
What is the fundamental law of electricity ? - Answers Electron flow is directly proportional to
the applied voltage (voltage goes up flow goes up, voltage goes down flow goes down)
What is the piezoelectricity? - Answers Voltage that is produced by squeezing crystals of a
certain substance together(pressure)
What is Thermo-electricity? - Answers Electricity produced from heat
What is Photo electricity ? - Answers Electricity created by light
Magnetic electricity - Answers Volts produced in a conductor when it moves through a magnetic
field or a magnetic field moves through a conductor
Voltage source - Answers Supply's and maintains volts to terminal
What is the piezoelectric effect an example of? - Answers Mechanical energy into electrical
energy
Wet - Answers Contains liquid electro lights and must remain up right . Non portable (example
car battery )
Dry - Answers Contains paste electro lights (example double A batteries)
What are the conditions for magnetic energy to be met ? - Answers A conductor , a magnetic
field, and relative motion between field conductors
.1 - Answers Tenths
.01 - Answers Hundredths
.001 - Answers Thousandths
?/2 - Answers Numerator
1/? - Answers Denominator
Matter - Answers Anything that has mass and takes up space
Element - Answers A substance that cannot be broken down into simpler substances
Molecule - Answers two or more atoms held together by covalent bonds
Compound - Answers substance formed by the chemical combination of two or more elements
in definite proportions
Atom - Answers the basic unit of a chemical element.
subatomic particles - Answers protons, neutrons, electrons
Electrons - Answers Negatively charged particles
Protons - Answers Positively charged particles
Neutrons - Answers neutral charge
kinetic energy - Answers energy of motion
potential energy - Answers stored energy
What must be done for an electron to remain in orbit ? - Answers Cannot gain or lose energy
What is Light energy called ? - Answers photons
What is light? - Answers a form of energy
Paul exclusion principle - Answers 2(n)^2
How much will each shell contain ? - Answers A maximum of 2(n)^2 electrons
Most outer shell of an electron - Answers Valence
What is ionization ? - Answers process by which an atom gains or loses electrons to become a
negatively or positively charged atom
, What determines the valence of an atom ? - Answers the number of electrons in the outermost
shell
What is electron movement called? - Answers Electrical current
What does Coulomb's Law state? - Answers states that the electrostatic force between two
charged objects is directly proportional to the product of the charges on each object and
inversely proportional to the square of the distance between them (like charges repel unlike
charges attract)
What is the difference between 2 bodies? - Answers Electromotive Force (EMF) or voltage (v)
What is electromotive force? - Answers is an energy transfer to an electric circuit per unit of
electric charge, measured in volts.
Kilovolt (kV) - Answers equal to 1000 volts
millivolt (mV) - Answers a thousandth of a volt
microvolts (uV) - Answers 1,000,000 times smaller than a Volt
Where does the flow of electricity travel ? - Answers From negative to positive
What is the fundamental law of electricity ? - Answers Electron flow is directly proportional to
the applied voltage (voltage goes up flow goes up, voltage goes down flow goes down)
What is the piezoelectricity? - Answers Voltage that is produced by squeezing crystals of a
certain substance together(pressure)
What is Thermo-electricity? - Answers Electricity produced from heat
What is Photo electricity ? - Answers Electricity created by light
Magnetic electricity - Answers Volts produced in a conductor when it moves through a magnetic
field or a magnetic field moves through a conductor
Voltage source - Answers Supply's and maintains volts to terminal
What is the piezoelectric effect an example of? - Answers Mechanical energy into electrical
energy
Wet - Answers Contains liquid electro lights and must remain up right . Non portable (example
car battery )
Dry - Answers Contains paste electro lights (example double A batteries)
What are the conditions for magnetic energy to be met ? - Answers A conductor , a magnetic
field, and relative motion between field conductors
