Does the '-' in "-eV" in this question have anything to do with value or direction?

Question

anonymous · Answer

attachment

anonymous · Answer

There is a duplicate question in where there is not a space in front of the '-'

anonymous · Answer

I am new to electron volts, so I don't know if they're just saying "680 electron volts" or "680 electron volts traveling in the -x direction" or what.

gebooors · Answer

Electron moves, it has energy of 680 electron volts (eV)

anonymous · Answer

But does the dash hold any significance? Does it denote direction?

gebooors · Answer

Electron is accelerated in a electric field E
Electron moves in electric field from - to +
It is opposite to direction of electric field.
I guess sign means that.

anonymous · Answer

So now I understand *that* concept, thank you, it is an electron with 680 electron volts of energy.

gebooors · Answer

Yes, electron gets this energy if there is 680 V potential 
Difference in electric field. Charge of electron is - e.