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AFOQT: Physical Science Questions
with Detailed Verified Answers
Absolute Zero Ans: The Lowest Possible Temperature. (-273.15 C)
Atmospheric Pressure/Standard Atmospheric Pressure Ans: The
pressure Exerted By Gases In The Air.
- kPa, atm, mm, Hg, Torr
- 100kPa=1, atm=760mm Hg=760 Torr
Atom Ans: The Smallest Possible Particle of an Element.
Atomic Mass Ans: The Mass of an Atom, Measured by amu.
Atomic Number Ans: Also known as proton number, it is the
number of electrons or the the number of protons in an atom.
Example: the ____ of gold is 79.
Atomic Weight Ans: The Average Molar Mass of an Element
(Cl=35g/mol)
Compound Ans: A chemical consisting of two or more Elements
Chemically Bonded Together (CaCO3)
Convection Ans: The Exchange of Heat Energy With Surroundings
Produced by the Flow of a fluid due to being heated or cooled.
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Conduction Ans: The exchange of heat by contact with another
object or allowing the flow of electrons.
Decay (Radioactive Decay) Ans: The way that a radioactive
element changes into another element due to loss of mass
through radiation.
Example: Uranium 238 decays with the loss of an alpha particle to
form Thorium 234.
Gamma Rays Ans: Waves of radiation produced as the nucleus of
a radioactive element rearranges itself into a tighter cluster of
protons and neutrons.
_____ carry enough energy to damage living cells.
Half-Life Ans: The time it takes for the radiation coming from a
sample of radioactive element to decrease by half.
Heat Capacity Ans: The ratio of heat supplied to a substance,
compared with the rise temperature produced.
Heat of Combustion Ans: The amount of heat given off by the
mole of a substance during combustion.
This heat is a property of the substance and is the same no matter
what kind of combustion is invovled.
Ion Ans: An atom or group of atoms that has gained or lost one or
more electrons and developed an electric charge.
AFOQT: Physical Science Questions
with Detailed Verified Answers
Absolute Zero Ans: The Lowest Possible Temperature. (-273.15 C)
Atmospheric Pressure/Standard Atmospheric Pressure Ans: The
pressure Exerted By Gases In The Air.
- kPa, atm, mm, Hg, Torr
- 100kPa=1, atm=760mm Hg=760 Torr
Atom Ans: The Smallest Possible Particle of an Element.
Atomic Mass Ans: The Mass of an Atom, Measured by amu.
Atomic Number Ans: Also known as proton number, it is the
number of electrons or the the number of protons in an atom.
Example: the ____ of gold is 79.
Atomic Weight Ans: The Average Molar Mass of an Element
(Cl=35g/mol)
Compound Ans: A chemical consisting of two or more Elements
Chemically Bonded Together (CaCO3)
Convection Ans: The Exchange of Heat Energy With Surroundings
Produced by the Flow of a fluid due to being heated or cooled.
, Page | 2
Conduction Ans: The exchange of heat by contact with another
object or allowing the flow of electrons.
Decay (Radioactive Decay) Ans: The way that a radioactive
element changes into another element due to loss of mass
through radiation.
Example: Uranium 238 decays with the loss of an alpha particle to
form Thorium 234.
Gamma Rays Ans: Waves of radiation produced as the nucleus of
a radioactive element rearranges itself into a tighter cluster of
protons and neutrons.
_____ carry enough energy to damage living cells.
Half-Life Ans: The time it takes for the radiation coming from a
sample of radioactive element to decrease by half.
Heat Capacity Ans: The ratio of heat supplied to a substance,
compared with the rise temperature produced.
Heat of Combustion Ans: The amount of heat given off by the
mole of a substance during combustion.
This heat is a property of the substance and is the same no matter
what kind of combustion is invovled.
Ion Ans: An atom or group of atoms that has gained or lost one or
more electrons and developed an electric charge.
