Question

What energy transformations occur in a tv remote?
Ex: for a battery in a flashlight it's chemical energy to electrical energy to light energy

Answer 1

Pressing the button: Mechanical to electrical 
Waste energy from this step: Mechanical to heat 
Converting electrical signal to IR: electrical to electromagnetic (infrared rays) 
Waste energy from this step: electrical to heat 
Chemical energy from battery: chemical to electrical

Answer 2

Pressing the button: Mechanical to electrical

Waste energy from this step: Mechanical to heat

Converting electrical signal to IR: electrical to electromagnetic (infrared rays)

Waste energy from this step: electrical to heat

Chemical energy from battery: chemical to electrical