Identify a variety of energy transformations in everyday devices involving electrical, sound, light and heat

THE LAST WORD WAS energy

Microphone mechanical to electrical energy, Light from a light bulb and heat is the by product. Sound from electrical waves passing through a speaker.

TV = Electrical Current fires in a beam toward the screen.
TV = When it hits the screen the impact causes heat.
TV = The electrical signal causing the current to run the speaker sound.
TV = When the electron beam after hitting the glass, excites the phospor making the screen glow ...AND THEN THERE WAS LIGHT....