Question

talking into a battery operated microphone has what kind of energy transformation?
sound to chemical
chemical to radiant
chemical to sound
sound to sound
turning on a nightlight has what kind of energy transformation *
electrical to radiant
radiant to thermal
chemical to radiant
electrical to sound

Explanation:

For the first question: A battery-operated microphone uses chemical energy from the battery, which is converted to sound energy when it amplifies or produces sound.
For the second question: A nightlight uses electrical energy (from a power source) and converts it to radiant energy (light).

Answer:

1. Chemical to Sound
2. Electrical to Radiant