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Electricity part 3

Total questions: 24

Worksheet time: 1hrs 12mins

Name
Class
Date
1.
what is this symbol for?
a)
light bulb
b)
cell
c)
battery
d)
resistor
2.
This is the symbol for a ...
a)
Wire
b)
Battery
c)
Buzzer
d)
Fuse
3.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
4.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
5.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
a battery
d)
a single cell
6.
This is the symbol for a _____?
a)
Lamp
b)
Water wheel
c)
Loudspeaker
d)
Motor
7.
a)
Closed switch
b)
Push switch
c)
Trap door
d)
AC Power supply
8.
What is the unit of Current?
a)
Amps
b)
Watts
c)
Volts
d)
Joules
9.
Choose the corrrect sentence.
a)
This circuit will work because it is an open circuit
b)
This circuit will work because it is a closed circuit.
c)
This circuit will NOT work because it is an open circuit.
d)
This circuit will NOT work because it is a closed circuit.
10.
What kind of circuit is this?
a)
series
b)
parallel
11.
This picture is an example of what kind of circuit?
a)
Series
b)
Complete
c)
Broken
d)
Parallel
12.

What is an electrical circuit?

a)

a whole bunch of wires

b)

a broken path that electric charges can flow

c)

a circuit board

d)

a complete, unbroken path through which electric charges flow

13.

What are electrons?

a)

Negatively charged subatomic particles

b)

Positively charged subatomic particles

c)

Neutrally-charged subatomic particles

d)

Negatively charged atoms

14.

How does rubber differ from most metals?

a)

Rubber is a good conductor. Most metals are good insulators.

b)

Rubber conducts electrons. Most metals conduct protons.

c)

Rubber is a good insulator. Most metals are good conductors.

d)

Rubber is a good power source. Most metals are good conductors.

15.

Electric power can be calculated by multiplying ______________ and _________________.

a)

Voltage and resistance

b)

Voltage and current

c)

Electric usage and voltage

d)

Electric Energy and Time

16.

What component does the picture above represent?

a)

Battery

b)

Light bulb

c)

Ammeter

d)

Resistor

17.

What is the current drawn by a 5 ohm resistor when it is connected to a 1.5 V battery?

a)

7.5 amperes

b)

3.33 amperes

c)

0.3 amperes

d)

6.5 amperes

18.

What is the resistance of an object that draws 0.24 A when connected to a 120 volt circuit?

a)

0.024 ohms

b)

28.8 ohms

c)

124 ohms

d)

500 ohms

19.

The diagram shows two resistors connected in a circuit.


What could be the effective resistance, R of this circuit?

a)

4.0Ω

b)

6.0Ω

c)

9.0Ω

d)

18.0Ω

20.

The total resistance in this circuit is

a)

100 ohms

b)

450 ohms

c)

400 ohms

d)

30 ohms

21.
The total current through this circuit is
a)
0.02 amps
b)
0.09 amps
c)
50 amps
d)
9 amps
22.
The voltage dropped across the 300 ohm resistor is 
a)
6 V
b)
9 V
c)
2 V
d)
30 V
23.

What is the total resistance (RT) across this circuit?

a)

3 kΩ

b)

10 kΩ

c)

13 kΩ

d)

18 kΩ

24.

The total resistance of this circuit is

a)

26 ohms

b)

315 ohms

c)

324 ohms

d)

90 ohms

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