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Current Electricity Unit 5 Quiz 1

Total questions: 63

Worksheet time: 2hrs 55mins

Name
Class
Date
1.

A device for opening or closing the flow in a circuit is _______.

a)

resistor

b)

ammeter

c)

switch

d)

load

2.

What type of circuit is presented above?

a)

series

b)

parallel

3.

How many light bulbs will light up?

a)

none

b)

one

c)

two

4.

Is this an open or closed circuit?

a)

open

b)

closed

5.

Are the light bulbs in Area B in series with each other or parallel?

a)

series

b)

parallel

6.

Is the light bulb in Area A in series or parallel with the light bulbs in Area B?

a)

series

b)

parallel

7.

How many light bulbs will light up?

a)

zero

b)

one

c)

two

8.

Current is defined as _____________.

a)

a continuous path that electrons can flow through

b)

the pressure that pushes electrons through a circuit

c)

The rate at which electrons flow through a circuit

9.

In conventional current the current flows:

a)

from the positive terminal to the negative terminal

b)

from the negative terminal to the positive terminal

c)

from the battery to the load

d)

through the load and then to the battery

10.

__________________ are used in homes to prevent damage to electrical devices due to too much current running through them.

a)

switches

b)

electric outlets

c)

circuit breakers

d)

batteries

11.
Pick the correct sentence.
a)
This circuit will work because it is a closed circuit.
b)
Energy will freely flow in this circuit.
c)
This circuit will not work because there is no energy source.
d)
This circuit will not work because there is no switch.
12.
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.
13.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will stay on
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.
14.
When you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.
a)
parallel
b)
series
c)
open
d)
closed
15.
what is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
16.

Which circuit diagram represents the correct way to measure the current in a resistor?

a)
b)
c)
d)
17.
What 'flows' in a wire?
a)
Protons
b)
Neutrons
c)
Atoms
d)
Electrons
18.

What unit is used to measure current?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

19.
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
20.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
21.

What would happen if in a circuit the voltage is increase?

a)

The time would increase

b)

The current would increase

c)

The current would decrease

d)

The current would stay the same

22.
Which parts are needed to complete a simple circuit lighting a lightbulb?
a)
wire, battery, lightbulb
b)
wire, buzzer, lightbulb
c)
wire, battery, buzzer
d)
wire, switch lightbulb
23.
An outlet in a wall and a battery are examples of __________.
a)
Power source 
b)
Load
c)
Energy pathway
d)
ALL of them 
24.

This is the symbol for a...

a)

Bulb

b)

Voltmeter

c)

Ammeter

d)

Motor

25.

This is the symbol for a...

a)

Fuse

b)

Cell

c)

Three Cell Battery

d)

Resistor

26.

An ammeter is connected __________ other components in a circuit.

a)

in series with

b)

in parallel with

c)

next to

d)

on a separate branch to

27.
What 'flows' in a wire?
a)
Protons
b)
Neutrons
c)
Atoms
d)
Electrons
28.

A lightbulb is hooked to a battery. If a second identical bulb is added in series,

a)

the current from the battery increases.

b)

the current from the battery decreases.

c)

the voltage from the battery increases.

d)

the voltage from the battery decreases.

29.

Lightbulbs in series share the same

a)

current

b)

voltage

c)

power

30.

Two 4 Ω resistors are hooked in series. The equivalent resistance is

a)

2 Ω

b)

4 Ω

c)

6 Ω

d)

8 Ω

31.

For this parallel circuit, if I cut the red wire to light #2 would lights #1 and #3 still on or turn off?

a)

On

b)

Off

32.

For this circuit, I have a battery with a voltage of 9 V. What would the voltage of the 2nd lightbulb be?

a)

3 V

b)

3 A

c)

9 V

d)

9 A

33.

This slows down the flow of charge in a circuit.

a)

Current

b)

Voltage

c)

Resistance

34.

The unit for resistance is...

a)

amps.

b)

ohms.

c)

volts.

35.

What happens to the BRIGHTNESS of the lightbulbs in a SERIES circuit if you add a new lightbulb?

a)

Gets brighter

b)

Gets dimmer

c)

Stays the same

36.

What happens to the BRIGHTNESS of the lightbulbs in a PARALLEL circuit if you add a new lightbulb?

a)

Gets brighter.

b)

Gets dimmer.

c)

Stays the same.

37.

If you add a lightbulb to a SERIES circuit, the resistance will...

a)

increase.

b)

decrease.

c)

stay the same.

38.

Voltage total for a simple Series circuit is solved by...

a)

Vtot= V1+V2+V3.....

b)

Vtot= V1=V2=V3

39.

Current total for a simple Series circuit is solved by...

a)

I tot= I1+I2+I3.....

b)

I tot= I1=I2=I3

40.

In the following circuit the current from the battery would be...

a)

The current of the battery = current through each resistor

b)

The current of the battery differs from the individual current in each resistor

41.

Resistance total for a simple Series circuit is solved by...

a)

R tot= R1+R2+R3.....

b)

1/Rtot= 1/R1 + 1/R2 + 1/R3

42.

Shown is the symbol of a cell used in constructing circuit diagrams. Which end is the 'positive' terminal?

a)

A

b)

B

43.

Suppose that a 1.5 V1.5\ V  power supply is used in a circuit with a lone 25 Ω25\ \Omega resistor. What would be the magnitude of the electric current flowing in this circuit?

a)

37.5 A37.5\ A  

b)

26.5 A26.5\ A  

c)

0.06 A0.06\ A

d)

undefined

44.

Three resistors, RA=10 ΩR_A=10\ \Omega , RB =20 ΩR_B\ =20\ \Omega , and RC = 25 ΩR_C\ =\ 25\ \Omega , are connected in SERIES. The total resistance of this setup is equal to _____.

a)

0.19 Ω0.19\ \Omega  

b)

5.26 Ω5.26\ \Omega  

c)

18.33 Ω18.33\ \Omega  

d)

55 Ω55\ \Omega  

45.
What is the unit of measurement for Power?
a)
Joules
b)
Newtons
c)
Watts
d)
Meters
46.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
47.

An ammeter is used to measure _________.

a)

voltage

b)

current

c)

resistance

d)

electrical potential

48.

A voltmeter is used to measure _________.

a)

voltage

b)

current

c)

resistance

d)

wattage

49.

A voltmeter should be connected in series.

a)

True

b)

False

50.

An ohmmeter is used to measure _________.

a)

voltage

b)

current

c)

resistance

d)

wattage

51.
What is the resistance, if the voltage is 9 V and the Current is 3 Amps?
a)
.33
b)
27
c)

6

d)
3
52.
Static electricity is defined as
a)
No current
b)
generator
c)
balanced
d)
an imbalance of charge
53.
If two objects repel, what can there charges be?
a)
negative and negative, positive and positve
b)
positive and negative or negative and neutral,
c)
negative and neutral, positive and positive
d)
Your mom
54.
If you transfer all your electrons to a piece of paper, what charge are you?
a)
neither
b)
neutral
c)
negative
d)
positive
55.
What is the current if the resistance is 20 ohms, and the voltage 100 V?
a)
20 Amps
b)
5 Amps
c)
.2 Amps
d)
2000 Amps
56.
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
57.
If the current in a circuit is 10 amps and the resistance is 3 ohms, what is the voltage?
a)
30 Volts
b)
 3.33 volts
c)
0.3 volts
d)
300 volts
58.

What is the formula for voltage?

a)

V = (I x R) / 2

b)

V = I / R

c)

V = R / I

d)

V = I x R

59.

What stays the same throughout this whole circuit?

a)

Resistance

b)

Voltage

c)

Parallel

d)

Current

60.

What is the total resistance of this circuit?

a)

100 Ω

b)

200 Ω

c)

0.063 Ω

d)

15.8 Ω

61.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will stay on
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.
62.
When you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.
a)
parallel
b)
series
c)
open
d)
closed
63.

A voltmeter has a high resistance so that it can accurately measure the change in voltage across a resistor. In order to do this, the voltmeter must be wired in ____________ with the resistor it's measuring

a)

Series

b)

Parallel

c)

Complex

d)

None of the above

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