PSC 101 Final Exam questions with
complete solutions passed
Elastic Potential Energy - correct answer ✔✔Stretchy/springy objects store this type of energy
> Increases as the object becomes more stretched
> Decreases when the object becomes more compressed/unstretched
Thermal Energy - correct answer ✔✔Type of energy that increases/decreases within an object
when its temperature changes
> Result of heat-conduction, infrared, friction, and electric-circuit interactions
> Increases when object's temperature increases
> Decreases when object's temperature decreases
Contact Interaction - correct answer ✔✔Touching objects that push or pull on each other
> Push/pull
> Friction
> Involves a transfer of MECHANICAL energy
> Changes in speed
Mechanical Energy - correct answer ✔✔Type of energy transferred during Contact Interactions
(push/pull or friction)
> Usually relates to movement and changes in kinetic energy
> Causes the speed of an object to be affected in some way
> Evidence of a transfer of mechanical energy: When the objects in an interaction push or pull
on each other and at least one of them changes its speed
, Heat-Conduction Interaction - correct answer ✔✔2 objects with different temperatures touch
> Involves an exchange of Heat Energy
Heat Energy - correct answer ✔✔Energy during a heat-conduction interaction or infrared
interaction
> Results in a change of thermal energy within the object
> Always transferred from the warmer object to the cooler object
> Evidence of a transfer of heat energy: when objects in an interaction change their
temperatures such that one of them becomes warmer while the other becomes cooler
Infrared Radiation - correct answer ✔✔> Heat emitted from all object
> The warmer an object is, the more infrared radiation it emits
> Involved in infrared interactions
Infrared Interaction - correct answer ✔✔The infrared radiation of one object transfers heat
energy to another object
> Objects do not need to be touching
Transient State - correct answer ✔✔Whenever a type of energy is changing in an object
Equilibrium State - correct answer ✔✔When no energy types are changing in an object
I/O Diagram - correct answer ✔✔Input Output Diagram: focuses on only 1 object in the
interaction
> Includes inputs, outputs, and internal energy changes within the object
> Does not include other energy receivers or sources
complete solutions passed
Elastic Potential Energy - correct answer ✔✔Stretchy/springy objects store this type of energy
> Increases as the object becomes more stretched
> Decreases when the object becomes more compressed/unstretched
Thermal Energy - correct answer ✔✔Type of energy that increases/decreases within an object
when its temperature changes
> Result of heat-conduction, infrared, friction, and electric-circuit interactions
> Increases when object's temperature increases
> Decreases when object's temperature decreases
Contact Interaction - correct answer ✔✔Touching objects that push or pull on each other
> Push/pull
> Friction
> Involves a transfer of MECHANICAL energy
> Changes in speed
Mechanical Energy - correct answer ✔✔Type of energy transferred during Contact Interactions
(push/pull or friction)
> Usually relates to movement and changes in kinetic energy
> Causes the speed of an object to be affected in some way
> Evidence of a transfer of mechanical energy: When the objects in an interaction push or pull
on each other and at least one of them changes its speed
, Heat-Conduction Interaction - correct answer ✔✔2 objects with different temperatures touch
> Involves an exchange of Heat Energy
Heat Energy - correct answer ✔✔Energy during a heat-conduction interaction or infrared
interaction
> Results in a change of thermal energy within the object
> Always transferred from the warmer object to the cooler object
> Evidence of a transfer of heat energy: when objects in an interaction change their
temperatures such that one of them becomes warmer while the other becomes cooler
Infrared Radiation - correct answer ✔✔> Heat emitted from all object
> The warmer an object is, the more infrared radiation it emits
> Involved in infrared interactions
Infrared Interaction - correct answer ✔✔The infrared radiation of one object transfers heat
energy to another object
> Objects do not need to be touching
Transient State - correct answer ✔✔Whenever a type of energy is changing in an object
Equilibrium State - correct answer ✔✔When no energy types are changing in an object
I/O Diagram - correct answer ✔✔Input Output Diagram: focuses on only 1 object in the
interaction
> Includes inputs, outputs, and internal energy changes within the object
> Does not include other energy receivers or sources
