observe any 20 appliances and write about the energy transformation taking place in the different devices being used.
Answers
Answer:
Scenario
Energy conversions involved
Rubbing both hands together for warmth
Kinetic Energy to Thermal Energy
A falling object speeding up
Gravitational Potential Energy to Kinetic Energy
Using battery-powered torchlight
In the battery: Chemical to Electrical Energy
In the bulb: Electrical to Radiant Energy
In Geothermal Power Plant
Heat Energy to Electrical Energy
In Thermocouple
Heat Energy to Electrical Energy
In Hydroelectric Dams
Gravitational potential energy to Electric Energy
In Electric Generator
Kinetic energy / Mechanical work to Electric Energy
In Windmills
Wind Energy to Mechanical Energy or Electric Energy
In OTEC
Heat Energy to Electric Energy or Mechanical Energy
Using Microphone
Sound Energy to Electric Energy
Photosynthesis in Plants
Solar Energy to Chemical Energy
In Piezoelectrics
Strain to Electric Energy
In Electric lamp
Electric Energy to Heat and Light Energy
Burning of wood
Chemical energy to Heat and Light Energy
In Fuel cells
Chemical Energy to Electric Energy
In steam engine
The heat energy to Mechanical Energy
In Electric heater
Electric Energy to Heat
Explanation: