PHYS 100 FINAL TEST BANK
QUESTIONS WITH COMPLETE
SOLUTIONS
Natural resonance - Answer- Energy in an isolated object causes it to perform a certain
motion again and again
Simple Harmonic motion - Answer- Regular and predictable oscillation
Period - Answer- Time it takes to complete one cycle of motion
Frequency - Answer- The number of cycles completed in a certain amount of time
Amplitude - Answer- Furthest displacement from equilibrium
Stiffness - Answer- The measure of how sharply the restoring force increases as the
oscillator is displaced from equilibrium
Emissivity - Answer- The efficiency with which an object emits and absorbs thermal
radiation
Blackbody spectrum - Answer- Distribution of wavelengths emitted by a black body
object (by temperature alone)
Color Temperature - Answer- Temperature of thermal radiation associated with
distribution of wavelengths
Coefficient of volume expansion - Answer- Fractional change in object's volume per unit
of temperature increase
Greenhouse effect - Answer- Displacement of Earth's radiating surface from ground
level to an elevated layer in the atmosphere
Phases - Answer- Distinct forms of a substance
Solid - Answer- Rigid and incompressible
Liquid - Answer- Fluid but incompressible
Gaseous - Answer- Fluid and compressible
, Steam - Answer- A gas; a collection of independent molecules kept in motion by thermal
energy
Water Vapor - Answer- A gas; a collection of independent molecules kept in motion by
thermal energy
Phase transition - Answer- Transformation from one phase to another
Melting temperature - Answer- Temperature at which heat goes into breaking bonds
and converting ice into water
Latent heat of fusion - Answer- Heat used to transform mass of solid to liquid without
changing its temperature
Freezing - Answer- Transformation from disordered liquid phase to ordered solid phase
Phase equilibrium - Answer- Two processes balance one another and coexist
indefinitely
Evaporation - Answer- Phase transition from liquid to gas
Condensation - Answer- Phase transition from gas to liquid
Latent heat of vaporization - Answer- Heat needed to transform liquid to gas without
changing temperature
Relative humidity - Answer- Measures water molecules' landing rate as a % of leaving
rate
Sublimation - Answer- Phase transition from solid to gas
Deposition - Answer- Phase transition from gas to solid
Boiling - Answer- Near 100 C, saturated steam bubbles become stable
Nucleation - Answer- Seed-bubble formation
Superheated - Answer- When boiling stops, water's temperature can rise above boiling
temperature
Thermal equilibrium - Answer- No thermal energy flows when two objects touch
Heat - Answer- Energy that flows from one object to another because of a difference in
temperature
QUESTIONS WITH COMPLETE
SOLUTIONS
Natural resonance - Answer- Energy in an isolated object causes it to perform a certain
motion again and again
Simple Harmonic motion - Answer- Regular and predictable oscillation
Period - Answer- Time it takes to complete one cycle of motion
Frequency - Answer- The number of cycles completed in a certain amount of time
Amplitude - Answer- Furthest displacement from equilibrium
Stiffness - Answer- The measure of how sharply the restoring force increases as the
oscillator is displaced from equilibrium
Emissivity - Answer- The efficiency with which an object emits and absorbs thermal
radiation
Blackbody spectrum - Answer- Distribution of wavelengths emitted by a black body
object (by temperature alone)
Color Temperature - Answer- Temperature of thermal radiation associated with
distribution of wavelengths
Coefficient of volume expansion - Answer- Fractional change in object's volume per unit
of temperature increase
Greenhouse effect - Answer- Displacement of Earth's radiating surface from ground
level to an elevated layer in the atmosphere
Phases - Answer- Distinct forms of a substance
Solid - Answer- Rigid and incompressible
Liquid - Answer- Fluid but incompressible
Gaseous - Answer- Fluid and compressible
, Steam - Answer- A gas; a collection of independent molecules kept in motion by thermal
energy
Water Vapor - Answer- A gas; a collection of independent molecules kept in motion by
thermal energy
Phase transition - Answer- Transformation from one phase to another
Melting temperature - Answer- Temperature at which heat goes into breaking bonds
and converting ice into water
Latent heat of fusion - Answer- Heat used to transform mass of solid to liquid without
changing its temperature
Freezing - Answer- Transformation from disordered liquid phase to ordered solid phase
Phase equilibrium - Answer- Two processes balance one another and coexist
indefinitely
Evaporation - Answer- Phase transition from liquid to gas
Condensation - Answer- Phase transition from gas to liquid
Latent heat of vaporization - Answer- Heat needed to transform liquid to gas without
changing temperature
Relative humidity - Answer- Measures water molecules' landing rate as a % of leaving
rate
Sublimation - Answer- Phase transition from solid to gas
Deposition - Answer- Phase transition from gas to solid
Boiling - Answer- Near 100 C, saturated steam bubbles become stable
Nucleation - Answer- Seed-bubble formation
Superheated - Answer- When boiling stops, water's temperature can rise above boiling
temperature
Thermal equilibrium - Answer- No thermal energy flows when two objects touch
Heat - Answer- Energy that flows from one object to another because of a difference in
temperature
