Combustion. The carbon-matter and oxygen combust, releasing CO2, N, and heat.
Chemical energy to electrical energy.
Stored Chemical energy being converted to, and released as Heat energy.
friction, heat, kinematic
A burning candle produces thermal energy and light.
chemical
chemical
its a kind of electric machine it works by electric power
This kind of energy is called renewable energy.
Radiant and thermal
condensation and evaporation or potential to kinetic to heat is the kind of energy conversions sustain the water cycle
I would presume it would be chemical energy from burning fuel
In headphones, electrical energy from the device is converted into sound energy through a transducer, typically a speaker or driver. The transducer receives the electrical signal and uses it to create vibrations in the air, resulting in the production of sound waves that can be heard by the listener.