Europe-US electricity converter question - will these appliances work?

I mostly know the difference between an "adapter" and a "converter". The adapter just adapts the plug and puts, for example, UK's 220v 50hz power straight through. Adapters are suitable for dual-voltage devices, like a charger brick or anything that says 110/220 50/60hz on it.

I know that a converter steps the voltage down from 220 to 110, but the frequency remains the same at 50hz, correct? And this is the reason most (all?) single-voltage electronic devices will not work, right? Converters work for electric devices that don't care too much about the frequency, like heating elements and motors, yes?


Is it possible that some electronic devices will work with a converter even though they are not dual-voltage? If not, would it just not turn on, or would it trip the fuse or blow the f up?