No, but they represent a shock hazard.
No.
The current flows through the cable of the plug, to whatever wants to be turned on.
mechanical to electrical to light energy
The actual process of flicking the switch of the flashlight is kinetic energy, as there is movement involved. However, when the flashlight is now turned on, it will be producing light energy.
Photosynthesis is an example of turning energy into mass. E=mc^2 is how energy is turned into mass.
When a light switched is turned on the circuit is usually closed.
The current flows through the cable of the plug, to whatever wants to be turned on.
you flip a light switch on and it is turned into light energy
Not without picking it over or breaking it. The switch needs to be turned, and the retainer depressed to remove the lock cylinder.
Compared to leaving the kettle on and hot all the time, it certainly saves electrical energy if the kettle is turned off when it's not in use. The switch can be used to perform that vital function.
mechanical to electrical to light energy
Just push it a few feet with the ignition switch turned on and pop the clutch.
An electric field causes electrons to flow when a switch is turned on.
An electric field causes electrons to flow when a switch is turned on.
An electric field causes electrons to flow when a switch is turned on.
Mechanical energy
When is food turned into energy
Bulbs are things that are plugged into light sockets, and they light up when the electricity is turned on.