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Electricity Review

Total questions: 23

Worksheet time: 17mins

Name
Class
Date
1.
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
2.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
3.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
4.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
5.
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
6.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
7.

Voltage divided by Resistance

(V / R)

a)

Current

b)

Power

c)

Ohms

d)

Watts

8.

Voltage divided by Current

(V / I)

a)

Current

b)

Power

c)

Resistance

d)

Watts

9.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
10.
If the Voltage stays the same and Resistance is increased, Current will 
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
11.

If the battery produced 12.6 Volts what would be the current flow for a 6 Ohm resistor?

a)

2.1 Amps

b)

2.4 Amps

c)

1.71 Amps

d)

15 Amps

12.
Which best describes a parallel circuit?
a)
Electricity flows along one pathway.
b)
The flow of electricity comes from one source. 
c)
Electricity flows along more than one pathway. 
d)
The flow of electricity comes from more than one source. 
13.
What kind of circuit is this?
a)
series
b)
parallel
14.

In a parallel circuit, if one connection is broken, all of the connections stop working.

a)

True.

b)

False.

15.

What type of circuit is the image showing?

a)

Parallel

b)

Series

c)

No circuit

16.
A series circuit has ____ path(s) that the electric current can take. 
a)
One
b)
Two 
c)
Three 
d)
Four
17.
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 is divided between the three light bulbs.
18.

What does LED stand for

a)

Light EnDangering

b)

Dad Eating Lamps

c)

Light Emitting Diode

d)

None of the above

19.

The anode connects to the ______ side of the battery and the cathode connects to the _____ side of battery

a)

positive, negative

b)

negative, positive

c)

negative, negative

20.

What is a diode?

a)

something that allows current to flow in any direction

b)

something that allows the current to flow in one direction

21.

What do we call the crystal in the middle of an LED light?

a)

conductor

b)

semiconductor

c)

insulator

22.

What does the slope of a Voltage vs Current graph tell you?

a)

the power in watts

b)

the resistance in ohms

c)

the potential difference in volts

d)

the rate of flow in amps

23.

the formula to find current when the values of V and R are known is

a)

I = V2R

b)

I = V/R

c)

I = R/V

d)

I=VR

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