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WelcomeBackToElectric

Total questions: 81

Worksheet time: 52mins

Name
Class
Date
1.

Match the following

a)

stores electricity and then discharges it back into the circuit when there is a drop in voltage

1.

capacitor

b)

takes an electrical signal and converts in into vibrations to produce audible sounds

2.

speaker

c)

used to measure current in a circuit

3.

ammeter

d)

converts electrical energy into light and heat

4.

lamp or bulb

e)

converts electrical energy into mechanical energy

5.

motor

2.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
3.
what is this symbol for?
a)

light bulb

b)

cell

c)

battery

d)

resistor

4.
This is the symbol for a ...
a)
Wire
b)
Battery
c)
Buzzer
d)
Fuse
5.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
6.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
7.
This is the symbol for 
a)
An Ammeter
b)
A Voltmeter
c)
A Meter
d)
A Motor
8.

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

a)

Bulb

b)

Resistor

c)

Wire

d)

L.E.D.

9.
This is the symbol for 
a)
Variable resistor
b)
Thermistor
c)
Resistor
d)
Fuse
10.

More than one cell connected together, stores energy in a chemical form

a)

bicell

b)

battery

c)

fuse

d)

capacitor

11.

Stores electricity and then discharges it back into the circuit when there is a drop in voltage

a)

bicell

b)

battery

c)

fuse

d)

capacitor

12.

an electrical safety device that prevents too much current from flowing

a)

battery

b)

capacitor

c)

fuse

d)

ground

13.

The reference point in an electrical circuit from which voltages are measured, in a one battery circuit, the negative terminal is also called this

a)

battery

b)

capacitor

c)

fuse

d)

ground

14.

Light-emitting diode, allows electricity to flow in one direction (it has polarity)

a)

Bulb or lamp

b)

motor

c)

LED

d)

ground

15.

What converts electrical energy into mechanical energy?

a)

motor

b)

generator

c)

ground

d)

lamp or bulb

16.

What converts mechanical energy into electrical energy?

a)

motor

b)

generator

c)

ground

d)

lamp or bulb

17.

What is an electromechanical transducer that allows the amount of opposition of the flow to change?

a)

motor

b)

Bulb or lamp

c)

variable resistor

d)

capacitor

18.

What is used to measure voltage in a circuit?

a)

kilometer

b)

ammeter

c)

voltmeter

d)

iamb or dactyl

19.

What opposes the flow of current, color bands are used to label the amount of resistance provided?

a)

motor

b)

reflector

c)

resistor

d)

dissentor

20.

What is used to measure current in a circuit?

a)

voltmeter

b)

ammeter

c)

arthrometer

d)

generator

21.

What takes an electrical signal and converts it into vibrations to produce audible sound?

a)

bulb or lamp

b)

motor

c)

speaker

d)

generator

22.

What component with at least 3 terminals, can be used as an amplifier or switch?

a)

transformer

b)

transistor

c)

transitioner

d)

Togruta

23.

What happens to the current in a series circuit?

a)

The current stays the same

b)

The current is added

c)

The current is reduced

d)

The current is split between the light bulbs

24.

What is resistor?

a)

Electrical component that is specially made to have a specific resistance

b)

The measure of the difference in how much energy the electrons receive to move around at different points in a circuit

c)

The flow of electrical charges

d)

The movement or presence of electrons

25.

Why is voltage is important?

a)

Because it is the pressure that causes the electrons to move around in a circuit and make the current flow and make appliances work

b)

To supply energy to be able to make the current flow in electric circuit and make appliances work

c)

To control the resistance in the circuit

d)

To reduce the current in the circuit

26.
Voltage is measured in __.
a)
volts.
b)
watts.
c)
coulombs. 
27.
The movement of electrons from atom to atom in a line results in a flow of _____. 
a)
amperage.
b)
electric current.
c)
electromagnetic connectors. 
28.
The movement of electrons from atom to atom in a line results in a flow of _____. 
a)
amperage.
b)
electric current.
c)
electromagnetic connectors. 
29.
What 'flows' in a wire?
a)
Protons
b)
Neutrons
c)
Atoms
d)
Electrons
30.

_________________ allow electricity to flow through easily.

a)

conductors

b)

construction

c)

constrictors

31.

______________ do not allow electricity to flow through easily.

a)

insults

b)

inside jokes

c)

insulators

32.

SI unit of current is

a)

ampere

b)

metre

c)

ohm

d)

volt

33.

What is needed for current to flow?

a)

light bulb

b)

multimeter

c)

resistance

d)

voltage

34.

SI unit of resistance is

a)

ampere

b)

metre

c)

ohm

d)

volt

35.
A series circuit has ____ path(s) that the electric current can take. 
a)
One
b)
Two 
c)
Three 
d)
Four
36.
Which circuit type makes a simple loop?
a)
series circuits
b)
parallel circuits
c)
ardurino circuits
37.
What characteristic of electric is measuring the difference between two points?
a)
current
b)
resistance
c)
voltage
d)
capacitance
38.
Which value is equivalent to one amp?
a)
1000 k Amps
b)
10 c Amps
c)
1000 m Amps
d)
0.01 k Amps
39.
What electrical component is often used to limit current to values tolerable to LED's?
a)
batteries
b)
capacitors
c)
inductors
d)
resistors
40.
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
41.
Current times Resistance equals
 (I X R)
a)
Power
b)
Voltage
c)
Amperage
d)
Ohm
42.

Voltage divided by Resistance

(V / R)

a)

Current

b)

Power

c)

Ohms

d)

Watts

43.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
44.
How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor
a)
12 volts
b)
24 volts
c)
1.3333
d)
48 volts
45.
How do you calculate resistance?
a)
Voltage X Current
b)
Current ÷ Voltage
c)
Voltage ÷ Current
d)
Current X Amps
46.

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

47.
What is the function of a fuse?
a)
To burn a wire.
b)
To replace a copper wire.
c)
To protect an electrical appliance.
d)
To make a complete circuit.
48.

39.0 mA is equivalent to

a)

0.00039 A

b)

0.0039 A

c)

0.039 A

d)

0.39 A

49.

When referring to an electrical circuit diagram, what point is considered to be at zero voltage?

a)

the switch

b)

the circuit breaker

c)

the resistor

d)

the ground

50.

What is a Direct Current (DC)

a)

Electrons that flow in two directions

b)

Electrons flow in only one direction

c)

Protons that flow in one direction

d)

Protons that flow in two directions

51.

What is current?

a)

the quantity or flow rate of protons moving past a point

b)

the quantity or flow rate of neutrons moving past a point 

c)

the quantity or flow rate of electrons moving past a point 

d)

the quantity or flow rate of DNA moving past a point 

52.

To complete a circuit, the switch must be

a)

closed

b)

open

53.

If three 100 ohm resistors are connected in parallel, what will the equivalent resistance be?

a)

100 ohms

b)

<100 ohms

c)

>100 ohms

54.

When a resistor in a series circuit is replaced by another resistor with a higher resistance value, how will the total circuit current be changed?

a)

it will increase

b)

it will be doubled

c)

it will decrease

d)

it will not be changed

55.

What unit is used on electric bills to charge for energy used by a consumer?

a)

kwh

b)

kv

c)

kw

56.

What is the resistance in this circuit?

a)

30 ohms

b)

0.3 ohms

c)

0.0333ohms

d)

2.9 volts

57.

What is the voltage in this circuit?

a)

1500 volts

b)

1.5 volts

c)

3.75 volts

d)

55 volts

58.

What is the resistance in this circuit?

a)

0.67 ohms

b)

1.5 ohms

c)

1.5 kohms

d)

4 volts

59.

What is the resistance in this circuit?

a)

0.75 ohms

b)

-0.5 volts

c)

futile

d)

750 ohms

60.

What is the voltage in this circuit?

a)

0.5 volts

b)

2 volts

c)

4.5 volts

61.

What is the resistance of R2?

a)

20 ohms

b)

10 ohms

c)

0.1 ohms

d)

0 ohms

62.

What is the resistance of R2?

a)

42 ohms

b)

30 ohms

c)

18 ohms

d)

4.5 ohms

63.

What is the voltage in this circuit?

a)

3 volts

b)

12 volts

c)

0.012 volts

d)

18 volts

64.

What is the amperage in this circuit?

a)

4 amps

b)

9 amps

c)

0.25 amps

d)

7.5 amps

65.

What is the voltage in this circuit?

a)

12 volts

b)

0 volts

c)

6 volts

d)

0.5 volts

66.

What is the resistance of R1?

a)

12 ohms

b)

3.6 ohms

c)

2.4 ohms

d)

1.4 ohms

67.

What is the resistance of R2?

a)

3.13 ohms

b)

3.2 ohms

c)

2.7 ohms

d)

1.92 ohms

68.

What is the resistance of R1?

a)

8.5 ohms

b)

12 ohms

c)

122.4 ohms

d)

56.15 ohms

69.

What is the voltage in this circuit?

a)

1736 volts

b)

1.74 volts

c)

9000 volts

d)

9 volts

70.

What is the resistance of R1?

a)

2.4 ohms

b)

300 ohms

c)

240 ohms

d)

30 ohms

71.

If three 100 ohm resistors are connected in series, what will the equivalent resistance be?

a)

100 ohms

b)

<100 ohms

c)

>100 ohms

72.

What is the resistance of R2?

a)

200 ohms

b)

100 ohms

c)

300 ohms

d)

-100 ohms

73.

What is the resistance of R1?

a)

60 ohms

b)

120 ohms

c)

240 ohms

d)

25 ohms

74.

What is the resistance of R1?

a)

15 ohms

b)

12 ohms

c)

36 ohms

d)

1.125 ohms

75.

What is the resistance of R1?

a)

7.5 ohms

b)

36 ohms

c)

10 ohms

d)

2.7 ohms

76.

What is the resistance of R1?

a)

300 ohms

b)

75 ohms

c)

750 ohms

d)

3.33 ohms

77.

What is the resistance of R2?

a)

0.5 ohms

b)

1 ohm

c)

4 ohms

d)

2 ohms

78.

What is the amperage in this circuit?

a)

6 amps

b)

0.6 amps

c)

1 amp

d)

0.15 amps

79.

What is the amperage in this circuit?

a)

4 amps

b)

16 amps

c)

3 amps

d)

2 amps

80.

What is the resistance of R2?

a)

120 ohms

b)

90 ohms

c)

12 ohms

d)

36 ohms

81.

What is the voltage in this circuit?

a)

3 volts

b)

18 volts

c)

36 volts

d)

9 volts

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