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Current and Circuits

Total questions: 27

Worksheet time: 1hrs 8mins

Name
Class
Date
1.
In a ________ circuit there are multiple paths for the current to take.
a)
Series
b)
Parallel
2.
In a _________ circuit, if one bulb goes out then the entire circuit doesn't work.
a)
Series
b)
Parallel
3.
What is the unit for resistance?
a)
Volts
b)
Amperes
c)
Ohms
4.
What type of circuit is pictured?
a)
series
b)
parallel
5.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
6.
If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
7.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
8.
Lightning is an example of _________.
a)
static electricity
b)
current electricity
c)
watts
d)
voltage
9.
What type of circuit is pictured?
a)
series
b)
Parallel
10.

If the light bulb in the middle burned out, what would happen to the other two?

a)

The light bulb to the left would stay lit, but the one to the right would turn off.

b)

They would both stay lit.

c)

The light bulb to the right would stay lit, but the one to the left would turn off.

d)

They would both turn off.

11.
____________ stops the flow of electricity.
a)
A conductor
b)
An insulator
c)
A magnet
12.
In a ________ circuit there are multiple paths for the current to take.
a)
Series
b)
Parallel
13.
Identify the conductor below.
a)
cloth rag
b)
plastic bottle
c)
gold ring
14.
What is the power of a 20V bulb with 5A through it?
a)
100W
b)
100V
c)
6.3W
d)
6.3A
15.
What resistance is needed to cause a 20A current flow because of a 100V battery?
a)
0.2Ώ
b)
2000Ώ
c)
120Ώ
d)
5Ώ
16.
If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
17.
Thicker wires have _______ resistance than thinner wires.
a)
more
b)
less
c)
the same
18.
Which formulas represents Ohm's law?
a)
V=IR
b)
R=IV
c)
I=RV
19.
Electricity is the flow of _________.
a)
protons
b)
neutrons
c)
electrons
20.

Which of the following substances is the best conductor of electricity?

a)

Glass

b)

Wood

c)

Water

d)

Mercury

21.

Which of the following is the SI unit for electric current?

a)

Ohm

b)

Watt

c)

Ampere

d)

Volt

22.
Which of these best completes the circuit?
a)
rubber band
b)
metal nail
c)
leather shoelace
d)
wooden toothpick
23.
Which of these substances conducts electricity the best?
a)
wood
b)
brick
c)
copper
d)
plastic
24.
What type of circuit is represented by the diagram?
a)
closed
b)
series
c)
open
d)
parallel
25.

A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?

a)

Light bulb 1 and light bulb 2 will both be on

b)

Light bulb 1 will be off, but light bulb 2 will be on

c)

Light bulb 1 and light bulb 2 will both be off

d)

Light bulb 1 will be on, but light bulb 2 will be off

26.
Is the following photo of an open circuit or closed circuit? 
a)
A closed circuit which allows electricity to flow
b)
An open circuit which does not allow electricity to flow
27.
What is a Parallel circuit? 
a)
Has only one path 
b)
Has more than one path 
c)
Allows energy to travel through easily 
d)
Has only one light bulb

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