Are there other types of "wasted" energy being produced in energy transformations other than heat energy?

Question

think about and write down other forms of "waste" energy you encounter every day.(hint: think about pencil sharpner)

Answer 1

How about using your computer and internet connection to try to get other people to answer your homework instead of turning off the computer and doing it yourself?

Answer 2

All energy we currently use is in-efficient  except for solar.  They have developed, for example, a way to pull heat from the warm water that goes down the drain when you take a shower, and use the heat to pre-warm  cold water entering the water heater.  It's basically a coil of copper pipe around the drainpipe.

This uses some of the wasted energy, but not "all" .

Answer 3

Sound energy, and light energy.  Waste energy is basically any form of energy that is not desired.