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Electricity

Total questions: 30

Worksheet time: 55mins

Name
Class
Date
1.

What size resistor would produce a 4 Amp current flow with a 12 Volt battery

a)

1 Ohm

b)

3 Ohms

c)

4 Ohms

d)

12 Ohms

2.
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
3.

This circuit has a 24 volt battery and the resistor is 12 ohms. How many amps are running through the circuit?

a)

3 Amps

b)

192 Amps

c)

2 Amps

d)

4 Amps

4.

What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 6 A?

a)

11 V

b)

10 V

c)

30 V

d)

1 V

5.
If you decreases the resistance of a circuit, what happens?
a)
Current decreases
b)
Current increases
c)
Electrons disappear
d)
Bulbs get brighter
6.
If you increase the voltage of a circuit, what happens?
a)
Current decreases
b)
Current increases
c)
Electrons disappear
d)
Bulbs get dimmer
7.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
8.
What kind of circuit is this?
a)
series
b)
parallel
9.
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
10.
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
11.

Longer wires have _______ resistance than shorter wires.

a)

more

b)

less

c)

the same

12.

What is Current?

a)

The potential energy of an electrical supply stored as an electrical charge

b)

The flow of electrons in a circuit

c)

The resistance of the flow of electricity in a circuit

d)

The amount of energy absorbed or produced within a circuit.

13.

How is power measured?

a)

Watts

b)

Ohms

c)

Volts

d)

Amps

14.

What is a conductor?

a)

a material that slows the transfer of electricity

b)

a material that transfers electricity easily

c)

a material that is fluffy

d)

a material that is temperature controlled

15.

Which of the following is caused by static electricity?

a)

a stove getting hot when it is turned on

b)

a lightning strike during a storm

c)

a light bulb coming on when a switch is turned on

d)

a magnet being attracted to a refrigerator

16.

Walking across a carpet is an example of charge being transferred by

a)

friction

b)

conduction

c)

induction

d)

reduction

17.

If the distance between two charges doubles, what happens to the force?

a)

doubles

b)

triples

c)

quadruples

d)

decrease 4 times

18.

Marga rubbed 2 balloons with wool. What will happen when the balloons are brought near each other?

a)

The balloons will attract each other.

b)

The balloons will pop.

c)

The balloons will repel each other.

d)

The balloons will become positively (+) charged.

19.
Which type of current comes from a battery?
a)
alternating current (AC)
b)
direct current (DC)
20.
In a _________ circuit, if one bulb goes out then the entire circuit doesn't work.
a)
Series
b)
Parallel
21.

What kind of circuit is this?

a)

Series

b)

Consecutive

c)

Parallel

22.
What resistance is needed to cause a 20A current flow because of a 100V battery?
a)
0.2Ώ
b)
2000Ώ
c)
120Ώ
d)
23.
What is the power of a 20V bulb with 5A through it?
a)
100W
b)
100V
c)
6.3W
d)
6.3A
24.

What voltage is needed to cause a 50A current flow through a 10Ω resistor?

a)

15V

b)

500V

c)

500 kV

d)

0.2V

25.
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
26.
The process of transferring charge between objects by touching or rubbing
a)
charging by induction
b)
static discharge
c)
charging by contact
d)
proton
27.

Resistance is a measure of....

a)

the energy per unit charge in a circuit

b)

how hard it is for electrons to move through the circuit

c)

the number of charge carriers in a circuit

28.
I am the crackle you hear when you touch a doorknob after rubbing your feet across a carpet.
a)
electric circuit
b)
electric discharge
c)
fuse
d)
conductor
29.
What is the name of this device that is used to detect charges?
a)
beaker
b)
electroscope
c)
van de graff generator
d)
chargometer
30.
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