Answers and Explanations

1. When the relay is off:
   
   1. 1 connects to 4
   2. 8 connects to 5
2. When the relay is on:
   1. 1 connects to 3
   2. 8 connects to 6
3. The relay is like a 3-way in that the 3-way switch has power come into the black screw (pole) and then in the offset, it connects to one gold screw. Then, in the on state, the black screw connects to the other gold screw. The relay works the same. When it is off, 1 connects to 4, and when on, 1 connects to 3. This is the same for 8.
4. A relay is different from a 3-way in that a relay is switched electrically and a 3-way is switched mechanically. It is also different because the relays used in this class are Double-Pole, Double-Throw relays, so it is essentially like having two 3-ways connected together.
5. The rest are safety reminders.

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