NST 160 COMPLETE FINAL EXAM 2026
QUESTIONS AND CORRECT VERIFIED
ANSWERS
⩥ semiconductor. Answer: a material with conductivity somewhere
between an insulator and a metal (good conductor)
⩥ insulator. Answer: too much energy required for electrons to move
(Un-doped Silicon is an insulator)
⩥ standard photovaultic (PV) solar cell structure
- N - Type layer
- P-Type Layer
- Junction
- Electron Movement
- type of current produced. Answer: Similar to electrochemical cells
(batteries, fuel cells)
Electrons "want" to move from N-type to P-type
Need energy to "pop" out of silicon matrix and move
Junction = prevents direct flow, so electron movement can be harnessed
in conductor
Produce Direct Current
,⩥ Factors that influence solar PV cell production
- solar irradiance
- angle of incidence
- monocrystalline
- polycrystalline
- thin film panels. Answer: - solar irradiance
Variability of the sun's power
- angle of incidence
Angle of the solar panel
- monocrystalline
More expensive, greater efficiency + lifespan. If one panel is blocked,
whole system can fail.
- polycrystalline
less expensive. efficiency decreases in warmer climates
- thin film panels
lowest cost, works well in warm weather
⩥ Power Equation. Answer: P = V x I
⩥ Panel Efficiency. Answer: = Max power (Watts) / Radiation flux
(Watts/M^2) * Area (M^2) *100
, ⩥ Independent variable. Answer: variable whos value does not depend
on another
⩥ dependent variable. Answer: variable whose value depends on another
⩥ experimental treatments. Answer: a combination of variables that can
effect the result of the experiment. Each unique combination is a
treatment
⩥ control variables. Answer: conditions during an experiment which do
not change.
⩥ replicates. Answer: repeating an experiment to verify results
⩥ 3 Types of solar conversion technologies. Answer: -solar water
heating
-PV (Photovaultic)
residential to grid
-Concentrated Solar power
name for central solar grid/farm/array
⩥ direct vs indirect solar water heating. Answer: Direct: water runs
through panels to be heated
Indirect: glycol runs through panels to then provide heat
QUESTIONS AND CORRECT VERIFIED
ANSWERS
⩥ semiconductor. Answer: a material with conductivity somewhere
between an insulator and a metal (good conductor)
⩥ insulator. Answer: too much energy required for electrons to move
(Un-doped Silicon is an insulator)
⩥ standard photovaultic (PV) solar cell structure
- N - Type layer
- P-Type Layer
- Junction
- Electron Movement
- type of current produced. Answer: Similar to electrochemical cells
(batteries, fuel cells)
Electrons "want" to move from N-type to P-type
Need energy to "pop" out of silicon matrix and move
Junction = prevents direct flow, so electron movement can be harnessed
in conductor
Produce Direct Current
,⩥ Factors that influence solar PV cell production
- solar irradiance
- angle of incidence
- monocrystalline
- polycrystalline
- thin film panels. Answer: - solar irradiance
Variability of the sun's power
- angle of incidence
Angle of the solar panel
- monocrystalline
More expensive, greater efficiency + lifespan. If one panel is blocked,
whole system can fail.
- polycrystalline
less expensive. efficiency decreases in warmer climates
- thin film panels
lowest cost, works well in warm weather
⩥ Power Equation. Answer: P = V x I
⩥ Panel Efficiency. Answer: = Max power (Watts) / Radiation flux
(Watts/M^2) * Area (M^2) *100
, ⩥ Independent variable. Answer: variable whos value does not depend
on another
⩥ dependent variable. Answer: variable whose value depends on another
⩥ experimental treatments. Answer: a combination of variables that can
effect the result of the experiment. Each unique combination is a
treatment
⩥ control variables. Answer: conditions during an experiment which do
not change.
⩥ replicates. Answer: repeating an experiment to verify results
⩥ 3 Types of solar conversion technologies. Answer: -solar water
heating
-PV (Photovaultic)
residential to grid
-Concentrated Solar power
name for central solar grid/farm/array
⩥ direct vs indirect solar water heating. Answer: Direct: water runs
through panels to be heated
Indirect: glycol runs through panels to then provide heat
