Physics 111: Units, Atomic Structure,
Electromagnetic Spectrum & X-ray Questions and
Correct Answers
Units of measurement
Standard quantities used to express physical properties, such as length, mass, time, and
energy.
Basic quantities
Fundamental physical properties that can be measured, including length, mass, time, and
temperature.
Specialized quantities
Specific measurements used in particular fields of study, such as electrical current or
luminous intensity.
Derived quantities
Quantities that are derived from basic quantities through mathematical relationships, such as
velocity (length/time) or force (mass × acceleration).
Atomic structure
The arrangement of protons, neutrons, and electrons in an atom, defining its properties and
behavior.
Shells and energy levels
Regions around the nucleus of an atom where electrons are likely to be found, each
associated with a specific energy level.
Electromagnetic Spectrum & X-ray Questions and
Correct Answers
Units of measurement
Standard quantities used to express physical properties, such as length, mass, time, and
energy.
Basic quantities
Fundamental physical properties that can be measured, including length, mass, time, and
temperature.
Specialized quantities
Specific measurements used in particular fields of study, such as electrical current or
luminous intensity.
Derived quantities
Quantities that are derived from basic quantities through mathematical relationships, such as
velocity (length/time) or force (mass × acceleration).
Atomic structure
The arrangement of protons, neutrons, and electrons in an atom, defining its properties and
behavior.
Shells and energy levels
Regions around the nucleus of an atom where electrons are likely to be found, each
associated with a specific energy level.
