1. What is electronics?

a. the flow of heat through anything.

b. the shocking potential of a battery

c. the flow of electrons and positive holes through a conductor.

 


2. Who discovered electricity?

a. Sir Francis Bacon.

b. Benjamin Franklin

c. God.

 


3. Why is electricity dangerous? ?

a. because the excessive flow of electrons can stop your heart beat.

b. it can make lightning strike you.

c. it aint when you standing on rubber.

 


4. What identifying marks tell the size of a resistor?

a. the weight of the resistor.

b. the voltage times the current .

c. colored rings around the resistors.

 


5. What is a closed curcuit?

a. one in which the element's resistance has fallen to zero.

b. one which is closed to outsiders.

c. one in which no current can flow into.

 


6. Whats the worse case senario with a closed curcuit?

a. the current can rise and possibly burn out the wires and shock someone to death. .

b. the current can rise and possibly burn out the wires and start a fire.

c. both of these.

 


7. When all the electrons flow out of a battery you should throw it away?

a. true.

b. false. Maybe you can pour some liquids in the battery to fill it back up with electrons.

c. false. Connect it up to an energy source to recharge it with new electrons.

 


8. Which wire can carry the most current?

a. an insulated wire.

b. a big ole copper wire.

c. a fast lil steel wire.

 


9. The copper diagrams one the back of a curcuit board serve as which of these?

a. wires.

b. current pathways.

c. both of these.

 


10. How is curcuit boards like the ones in your old radio made?

a. in a mold.

b. they are made by hand in china.

c. they are stamped out by machine.