Equipment works over a range of voltage and should be interchangeable between 110 v and 120 v so the answer is yes.
can you plug a 115 volt into a 110 volt
No, it won't get enough power and won't work.
on a standard 110-120 volt recptical the larger contact is the neutrial (white)side the smaller contact is the "hot" side
No, the 220 v and 110 v systems are designed to use a different pin layout for the plugs and sockets, to avoid possibly dangerous cross-connections. The two voltages can not be mixed and equipment for one system cannot be used on the other without a transformer.
If you are lucky the fuse will blow. If not the refrigerator might catch fire.
Not unless you have a 110 volt supply to plug it in to. The standard General Power Outlet in Australia is 240 volts AC at 50 Hertz.
yes but it will not be as good eg if it is a phone charger it will take longer to charge
can you plug a 115 volt into a 110 volt
NO
Yes.
no
no
There is a direct short after the switch.
115 Volt and a 110 Volt can be treated as the same thing. The electrical voltage supplied from your electric company is not exact and can be 120 Volt + or - 10%.
No, the applied 110 volt is too high for a 3 volt appliance. The appliance would burn out right away.
The bulb will be about half as bright.
With a 12 volt battery charger set to around 5 amps. Do not overcharge if it is not an automatic charger.