Test #1-Self Review (Bushong Ch. 1-3)
questions well answered to pass
Name 3 SI base quantities and their units - correct answer ✔✔Mass (kg), Length
(m), Time (s)
Why are SI units used? - correct answer ✔✔SI=Systeme International. Used to
standardize measurements so that they can be understood by scientists and
people around the world who don't necessarily speak the same language.
Name 3 metric prefixes and describe how they are related to the base unit -
correct answer ✔✔kilo (10^3), milli (10^-3), centi (10^-2). Metric prefixes precede
base units are used to indicate a multiple or a fraction of the unit.
(ex. 1 kV= 1 kilo Volt=1000 Volts)
What is the difference between an SI base unit and a derived unit? - correct
answer ✔✔Base units are the 3 basic fundamental building blocks of all other
quantities. Derived quantities are derived from a combination of one or more of
the base quantities.
Beta-minus decay vs. Alpha decay. Discuss mass, charge, what changes occur to
the atom. - correct answer ✔✔Beta decay is the spontaneous ejection of an
electron from the nucleus of a radioactive atom. The result of this is a very small
loss of mass and one unit of negative charge from the atom. Simultaneously a
neutron undergoes a transformation to a proton. Alpha decay occurs in very large,
very unstable atoms. The atom loses 2 units of positive charge and 4 units of
, mass. The atom becomes chemically different but also significantly lighter (by 4
amu).
"The ability to do work" best defines: - correct answer ✔✔Energy
Place 5 categories of electromagnetic radiation in order from smallest wavelength
to largest wavelength: - correct answer ✔✔Gamma, x-ray, UV, visible light,
infrared....microwaves, radiowaves
Which 2 items make up an ion-pair? - correct answer ✔✔An electron and the
atom from which it was removed by an outside source
Explain the difference between particulate radiation and electromagnetic
radiation - correct answer ✔✔Particulate radiation includes alpha and beta
particles and are associated with radioactive decay. Electromagnetic radiation
includes x-rays and gamma.
Atomic number - correct answer ✔✔Number of protons. Is represented by the
number above the element.
Atomic mass - correct answer ✔✔Number of protons and neutrons in the nucleus
Periodic table 'groups' indicate... - correct answer ✔✔The number of electrons in
the elements outermost shell
questions well answered to pass
Name 3 SI base quantities and their units - correct answer ✔✔Mass (kg), Length
(m), Time (s)
Why are SI units used? - correct answer ✔✔SI=Systeme International. Used to
standardize measurements so that they can be understood by scientists and
people around the world who don't necessarily speak the same language.
Name 3 metric prefixes and describe how they are related to the base unit -
correct answer ✔✔kilo (10^3), milli (10^-3), centi (10^-2). Metric prefixes precede
base units are used to indicate a multiple or a fraction of the unit.
(ex. 1 kV= 1 kilo Volt=1000 Volts)
What is the difference between an SI base unit and a derived unit? - correct
answer ✔✔Base units are the 3 basic fundamental building blocks of all other
quantities. Derived quantities are derived from a combination of one or more of
the base quantities.
Beta-minus decay vs. Alpha decay. Discuss mass, charge, what changes occur to
the atom. - correct answer ✔✔Beta decay is the spontaneous ejection of an
electron from the nucleus of a radioactive atom. The result of this is a very small
loss of mass and one unit of negative charge from the atom. Simultaneously a
neutron undergoes a transformation to a proton. Alpha decay occurs in very large,
very unstable atoms. The atom loses 2 units of positive charge and 4 units of
, mass. The atom becomes chemically different but also significantly lighter (by 4
amu).
"The ability to do work" best defines: - correct answer ✔✔Energy
Place 5 categories of electromagnetic radiation in order from smallest wavelength
to largest wavelength: - correct answer ✔✔Gamma, x-ray, UV, visible light,
infrared....microwaves, radiowaves
Which 2 items make up an ion-pair? - correct answer ✔✔An electron and the
atom from which it was removed by an outside source
Explain the difference between particulate radiation and electromagnetic
radiation - correct answer ✔✔Particulate radiation includes alpha and beta
particles and are associated with radioactive decay. Electromagnetic radiation
includes x-rays and gamma.
Atomic number - correct answer ✔✔Number of protons. Is represented by the
number above the element.
Atomic mass - correct answer ✔✔Number of protons and neutrons in the nucleus
Periodic table 'groups' indicate... - correct answer ✔✔The number of electrons in
the elements outermost shell
