Simplify the following text for a Grade 11 native English-speaking person.
Original: Devices convert electrical energy into many useful forms , such as heat ( electric heaters ) , light ( light bulbs ) , motion ( electric motors ) , sound ( loudspeaker ) , information technological processes ( computers ) , or even chemical changes .
Simplified: Devices convert this work into many useful forms , such as heat ( electric heaters ) , light ( light bulbs ) , motion ( electric motors ) and sound ( loudspeaker ) .