I don't know how things are wired in Israel, but here in the US the neutral is tied to ground at the breaker panel. For most cases (exception below), that means neutral and ground are equivalent at the outlet, except that neutral is intended to carry the return current whereas ground is intended for a safety return path when something goes wrong. The ground might be tied to a metal chassis, for example. Normally that is a open connection, but if something inside shorted to the chassis, the current would be carried by the ground lead instead of a person touching the chassis.
Therefore, you can test if the ground is working by very carefully connecting a small test load between the hot lead and ground. A small lightbulb is ideal for this. The lightbulb should light just as if it were connected between hot and neutral.
Now for the exception. Since there isn't ever supposed to be substantial current on the ground line (think of the chassis, just little capacitive coupling and some small leakage perhaps), current on the ground line indicates something went wrong. This can be exploited for additional safety by shutting off the hot line when ground current is detected. This is called "ground fault detection", and you can get "ground fault" breakers that have this built in. Around here at least, you can also get outlets that have a ground fault interruptor built in. These are often found in bathrooms and other places where the human user is more likely than usual to be connected to ground.
The lightbulb test described above will therefore not only test the ground lead, but by putting current on the ground line it will also test any ground fault interruptor on the line. If the bulb lights normally, then you've got a working normal outlet with a good ground line. If the bulb lights for a fraction of a second then goes out, you have a working ground fault breaker somewhere. In that case, you will have to reset that breaker to get power back at the outlet. If the bulb doesn't light at all, then you have a broken ground lead, which should be taken care of promptly.