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Electricity unit summary quiz - Simple

Total questions: 35

Worksheet time: 50mins

Name
Class
Date
1.

Which of the following devices measures current in an electric circuit?

a)

an ammeter

b)

an ohmmeter

c)

a voltage meter

d)

a resistor

2.

In a standard series circuit, the voltage is the same everywhere in the circuit.

a)

True

b)

False

3.

Which of the symbols represents current in an electrical circuit?

a)

i

b)

c

c)

e

d)

r

4.

If an electrical circuit were analogous to a water circuit at a water park, then the battery voltage would be comparable to ___________________.

a)

the rate at which water flows through the circuit

b)

the speed at which water flows through the circuit

c)

the distance that water flows through the circuit

d)

the water pressure between the top and bottom of the circuit

e)

the hindrance caused by obstacles in the path of the moving water

5.

The circuit on the left is not complete (the light is off) because:

a)

the switch is closed

b)

the switch is open

c)

the battery is missing

d)

the battery is in backwards

6.

How many light bulbs would be ON with this complete circuit?

a)

1

b)

3

c)

2

d)

4

7.

What type of circuit is shown in the picture?

a)

Series Circuit

b)

Broken Circuit

c)

Parallel Circuit

d)

Open Circuit

8.

This steel paperclip would allow electricity to flow through it because:

a)

it is a conductor

b)

it is an insulator

c)

it is friendly

d)

it breaks the circuit

9.

This rubber ducky would block the flow of electricity, because:

a)

it is a conductor

b)

it is an insulator

c)

it is yellow

d)

it completes the circuit

10.
What is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
11.

This symbol represents a ..........

a)

bulb

b)

wire

c)

cell

d)

resistor

12.

This symbol represents a ..............

a)

valve

b)

voltmeter

c)

Voltage

d)

Vacuum

13.

This symbol represents a ............

a)

angry circle

b)

bulb

c)

Resistor

d)

cell

14.

This is a water model of an electrical circuit. What does the flowing water represent?

a)

a cell

b)

the energy

c)

a motor

d)

the electricity

15.

This is a water model of an electrical circuit. What does the flowing water represent?

a)

a cell

b)

the wires

c)

a motor

d)

the electricity

16.

What unit is used to measure current?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

17.

What unit is used to measure resistance?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

18.

What is the resistance of a lightbulb that experiences 9 Volts and 3 amps of current?

a)

1/3 ohms

b)

3 ohms

c)

27 ohms

d)

9 ohms

19.

What is the voltage of a circuit with 4 ohms of resistance and 3 amps of current?

a)

12 V

b)

21 V

c)

4/3 V

d)

3/4 V

20.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
21.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
a)
25 V
b)
10 V
c)
2.5 V
d)
0.4 V
22.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
23.
If the Voltage stays the same and Resistance is increased, Current will 
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
24.
This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?
a)
3 Amps
b)
192 Amps
c)
2 Amps
d)
4 Amps
25.
In which of these two circuits is the current the same at all points? 
a)
A
b)
B
26.
Which Voltmeter will give the lowest reading?
a)
V1
b)
V2
c)
V3
27.
If the hair dryer and the vacuum cleaner are both on, what is the power used?
a)
2600 watts
b)
400 watts
c)
2200 watts
d)
1100 watts
28.
 A 120 Vac - 20 A  circuit breaker max power rating
a)
240 watts
b)
24 watts
c)
2400 watts
d)
240 volts
29.
What is 80% of 2400 watts?
a)
1920 watts
b)
19,200 watts
c)
2000 watts
d)
20,000 watts
30.
A hot water heater rated at 2600 watts is wired to 120 Vac circuit. What is the amperage?
a)
21.67 Ohms
b)
21.67 amps
c)
11.8 amps
d)
16 amps
31.
A heating element resistance is 24 ohms. The current measures 10 Amps. What is the power?
a)
240 watts
b)
1,200 watts
c)
1,000 watts
d)
2,400 watts
32.

Coffee Pot @ 1200 W

120 VAC What is the amperage?

a)

10 Amps

b)

12 Amps

c)

10 Watts

d)

12 Ohms

33.
What resistance is needed to cause a 20A current flow because of a 100V battery?
a)
0.2Ώ
b)
2000Ώ
c)
120Ώ
d)
5Ώ
34.
The total resistance in this circuit is 
a)
100 ohms
b)
450 ohms
c)
400 ohms
d)
30 ohms
35.
The current going through the 45 ohm resistor is 
a)
0.05 amps
b)
0.2 amps
c)
0.1 amps
d)
5 amps

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