Download 1 - Colyton High School

Knowledge Test
Electricity
.
1. Give the Symbols for the following names.
a. Conductor
b. Variable power supply
c. a cell
d. light globe
e. open switch
f. resistor
g. ammeter
h. voltmeter
i. closed switch
j. variable resistor
Complete the following questions.
2. Copper, silver, and gold are all good ................................
3. The pathway along which electrical energy flows is called an ...............................
4. Negative charges are called ...............................
5. Cotton, wool, and plastic are all ................................
6. The flow of electric charge is ...............................
7. The instrument used to measure this is an ................................
8. The energy needed to to move charge around a circuit is called ................................
9. The common name for this is ................................
10. The instrument used to measure this is ...............................
11. The measure of how much voltage is required to drive a 1A current through a component is
called ................r...............
12. When connecting an ammeter in a circuit, the positive terminal, which is coloured
............................ should be connected to the ................................ terminal on the power supply.
The negative terminal on the ammeter is coloured .............................. and should be connected to
the ................................ on the power supply.
13. If we need to measure the voltage of a component, we would place the voltmeter in
............................... to the component.
14.
VOLTAGE
CURRENT
RESISTANCE
NAME OF UNIT
SYMBOL OF UNIT
15. Draw the following circuits are connected in................series................
................parallel................
c) If you were connecting the lights in your house you would do this in .........................
16. When using two bar magnets, it will be observed that when a) two norths are placed together ............................... occurs.
b) a north and a south are placed close together ............................... occurs.
17. When using a compass we should not do this under electrical wires because the wires have a
................................ which will affect the compass.
18. When making an electromagnet, wire is wrapped around an iron core. If we wanted to make
this a stronger magnet, we woulda) ................................
b) ...............................