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Electricity and Circuits Review

Total questions: 43

Worksheet time: 46mins

Name
Class
Date
1.
If you replace the paper clip with a plastic spoon, what happens?
a)
The bulb doesn't light
b)
The bulb is dimmer
c)
The wires get hot
d)
There is no change
2.
A series circuit has ____ path(s) that the electric current can take. 
a)
One
b)
Two 
c)
Three 
d)
Four
3.
In a parallel circuit, if one connection is broken, all of the connections stop working.
a)
True
b)
False
4.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
5.
What kind of circuit is this?
a)
series
b)
parallel
6.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
7.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
8.
The picture shows an electrical circuit. This circuit is a series circuit because: 
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current has more than one path to flow through
9.
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
10.
What is a switch's function in a circuit?
a)
to make the current hotter or colder
b)
turn on and off the flow of current
c)
the pathway that current flows
d)
to add more power to the circuit
11.
What type of circuit is show in the image?
a)
Series Circuit
b)
Parallel Circuit
12.
this circuit is .....?
a)
open
b)
parallel
c)
closed
d)
The cutest little circuit evah!
13.
What is a circuit?
a)
A constant flow of electricity 
b)
A path that a current can flow along
14.
If the electric circuit is CLOSED, the switch is _______. 
a)
ON
b)
OFF
15.
If the electric circuit is OPEN, the switch is ____.
a)
ON
b)
OFF
16.

Why electrical wiring usually are covered with a layer of plastic?

a)

To make it look pretty

b)

To help electricity flow along the wire

c)

To make it safe

d)

To add more energy

17.

Why is electrical wiring usually made from copper?

a)

Because copper is shiny

b)

Because copper conducts electricity

c)

Because copper is not magnetic

d)

Because copper insulate electricity

18.

1. Which switch or switches must be closed to make the lamps light?

a)

Only switch 1

b)

Only switch 1

c)

Switches 1 and 2

d)

Switches 1 , 2 and 3

19.

Tammy makes a complete simple circuit with one bulb and three batteries. The bulb lights for an instant and then goes out. Why?

a)

Too much electricity flows through the bulb's filament

b)

Not enough electricity flows around the circuit

c)

The batteries are flat

d)

The batteries are not good

20.

If lamp 2 is unscrewed from its holder, what will happen to lamp1?

a)

It will stay lit

b)

It will go out

c)

It will get dimmer

d)

It will dissapear

21.

In order for electricity to flow, a circuit must be ________________.

a)

closed

b)

open

c)

in any position

d)

charged

22.

With the circuits that we worked on in class, in order for it to successfully work, what parts of the batteries needed to have wires touching them?

a)

top and bottom

b)

the sides

c)

positive and negative parts

d)

doesn't matter

23.

When when turn on a light switch, electricity flows and the lights illuminate. In doing this, what have we done?

a)

opened a circuit

b)

closed a circuit

c)

charged up a circuit

d)

done nothing to a circuit

24.

Which of the following BLOCKS electricity from flowing through it?

a)

conductor

b)

insulator

c)

reflector

d)

refraction

25.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
26.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
27.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
28.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
29.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
30.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
d)
light
31.
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
32.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
33.
Current times Resistance equals
 (I X R)
a)
Power
b)
Voltage
c)
Amperage
d)
Ohm
34.

Voltage divided by Resistance

(V / R)

a)

Current

b)

Power

c)

Ohms

d)

Watts

35.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
36.
If the Voltage stays the same and Resistance is increased, Current will 
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
37.
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
38.
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
39.
What word means how hard it is for electrons to flow through.
a)
Current
b)
Voltage
c)
Resistance
d)
Power
40.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
d)
It depends
41.
How many Volts would it take to push 1 Amp through a resistance of 1 Ohm
a)
10 volts
b)
1 volt
c)
48 volts
d)
5 volts
42.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
43.

What is the formula for ohms law?

a)

1+2=3

b)

R X E = I

c)

V =I x R

d)

E= MC squared

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