To
heat (thermal)
light
sound
chemical to…
electrical
heat (thermal)
light
sound
electrical to…
electrical
heat (thermal)
light
sound
exapmle -
mechanical to… - electrical - hydroelectric dams convert mechanical to electrical energy by using the flow of water to turn a turbine that powers a generator.

Nathaly !  You never let me off easy, do you.
This is 11 separate questions.  For 5 points ! ! !

I have work to do.  So instead of lecturing you on how you need
to be doing your own work, I'll just run through some answers.
That's a lot easier and faster.

Mechanical -- heat . . . rub your hands together to warm them up
Mechanical -- light . . .  I can't think of one
Mechanical -- sound . . . playing drums by hitting them with sticks

Chemical -- electrical . . . a battery
Chemical -- heat . . . a gas burner on the stove
Chemical -- light . . . a candle or a match
Chemical -- sound . . . a dynamite explosion

Electrical -- Electrical . . . the battery inside your cellphone
Electrical -- heat . . . a clothes drier or blow drier
Electrical -- light . . . a light bulb
Electrical -- sound . . . mp3 player; radio; thunder

The answer is d. when it begins to fall back to the child's hand

C) to ensure each new cell has an exact copy of the dna