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Circuits basics

Total questions: 121

Worksheet time: 20hrs 10mins

Name
Class
Date
1.
Current is...
a)
moving protons
b)
moving electrons
c)
measured in volts
d)
measured in ohms
2.
Voltage is simply defined as...
a)
what 'pushes' electrons
b)
what 'stops' electrons
c)
moving electrons
3.
Resistance is...
a)
What "slows down" electrons
b)
What "speeds up" electrons
c)
Moving electrons
d)
What "pushes" electrons
4.
What characteristics impact resistance of a material?
a)
Thickness 
b)
Temperature
c)
Length
d)
All of these
5.
If the voltage stays the same, but the resistance goes up, the current will....
a)
increase (speed up)
b)
decrease (slow down)
c)
stay the same
6.
If the current increases it could be because of...
a)
increasing voltage
b)
decreasing resistance
c)
both
7.
A light bulb is an example of a _______.
a)
current
b)
resistor
c)
battery
8.

A potential difference of 24 V is applied to a 150 resistor. How much current flows through the resistor?

a)

0.15 A

b)

3600 A

c)

6.25 A

d)

0.16 A

9.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
10.
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
11.
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
12.
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
13.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
14.
If the Voltage stays the same and Resistance is increased, Current will 
a)
Increase
b)
Decrease
c)
Stay the same
d)
Not enough info
15.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
Not enough info
16.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
17.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
18.
What is the unit of power?
a)

Ohms

b)
Volts
c)
Amps
d)

Watts

19.
What is voltage?
a)

The flow of protons

b)
The number of charged particles that pass each second
c)
The difference in potential energy of charged particles
d)
The rate at which energy is being transformed
20.
What voltage is needed to produce 2A of current through a 10Ω resistor?
a)
20V
b)
0.2V
c)
5V
d)
2V
21.
The movement of electrically charged _____ is called electric _____
a)
particles, transport
b)
ions, current
c)
particles, current
d)
ions, transport
22.
To have a complete electric circuit, the path must be _____
a)
small
b)
closed
c)
big
d)
open
23.
One ampere equals about 1 _____ of electrons
a)
voltage
b)
watt
c)
ohm
d)
coulomb
24.
An ampere is measured in _____
a)
milliseconds
b)
seconds
c)
minutes
d)
hours
25.
The symbol for 1 _____ is A
a)
acceleration
b)
current
c)
ampere
d)
coulomb
26.
An electric current is made up of _____ charged electrons
a)
neutral
b)
negative
c)
positive
d)
balanced
27.
As current flows through a wire, the number of _____ stays the same
a)
circuits
b)
particles
c)
current
d)
electrons
28.
A flash of lightning is an example of an electric _____
a)
watt
b)
voltage
c)
current
d)
resistance
29.
Good conductors are _______ resistors
a)
bad
b)
good
30.
Good insulators are _______ resistors
a)
good
b)
bad
31.
What characteristics impact resistance of a material?
a)
Thickness 
b)
Temperature
c)
Length
d)
All of these
32.
The two types of current are...
a)
AC/DC
b)
Alternating Current
c)
Direct Current
d)
All of the above
33.
In the U.S most electrical outlets supply a voltage of....
a)
240 Volts
b)
120 Volts
c)
100 watts
d)
60 amps
34.

A material that keeps electric charges from flowing through easily is called

a)

Flash light

b)

toaster

c)

an insulator

d)

series circuit

35.

Electrical current will pass easily through metals such as copper, aluminum and gold. These metals are good

a)

things

b)

insulators

c)

charged particles

d)

conductors

36.

If too much electric current passes through a circuit, the wires can

a)

make batteries

b)

cool down

c)

conductor

d)

overheat

37.

When too much electric current flows through an object, the object can heat up. What might this cause?

a)

your computer will turn on

b)

a fire

c)

the circuit to open

d)

carry information from the brain

38.

What would happen if in a circuit, the resistance increases but the voltage stays the same?

a)

The current would decrease

b)

The current would increase

c)

The voltage would decrease

d)

The voltage would increase

39.

is the opposition to the flow of charges in a material.

a)

Resistance

b)

Voltage

c)

Time

d)

Current

40.
Identify the conductor below.
a)
cloth rag
b)
plastic bottle
c)
gold ring
41.
Identify the insulator below.
a)
aluminum foil
b)
paperclip
c)
rubber eraser
42.
What is a closed path for electrons to flow through?
a)
static electricity
b)
circuit
c)
amperes
43.

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

44.

What unit is used to measure resistance?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

45.

What unit is used to measure current?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

46.

What is the resistance of a lightbulb that experiences 9 Volts and 3 amps of current?

a)

1/3 ohms

b)

3 ohms

c)

27 ohms

d)

9 ohms

47.

What is the voltage of a circuit with 4 ohms of resistance and 3 amps of current?

a)

12 V

b)

21 V

c)

4/3 V

d)

3/4 V

48.
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
49.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
50.

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

51.

What unit is used to measure the voltage?

a)

Ohms

b)

Omega

c)

Volts

d)

Amps

52.
Current times Resistance equals
 (I X R)
a)
Power
b)
Voltage
c)
Amperage
d)
Ohm
53.

Voltage divided by Resistance

(V / R)

a)

Current

b)

Power

c)

Ohms

d)

Watts

54.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
55.
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
56.

Calculate the current an electric clothes dryer draws when it is connected to a 230 V source and has a resistance

of 9.2 Ω.

a)

5A

b)

15A

c)

25A

d)

35A

57.
With the engine running the charging system produces 14.5 Volts what would the current flow be if a resistance of 6 Ohms was present
a)
2.41 Ohms
b)
2.52 Ohms
c)
2.1 Ohms
d)
0.3333 Ohms
58.
Which copper wire has the lowest resistance?
a)
1 metre of 1 mm diameter wire
b)
0.5 metre of 1 mm diameter wire
c)
0.5 metre of 0.5 mm diameter wire
d)
1 metere of 0.5 mm diameter wire
59.
What happens to a resistor when the temperature is increased?
a)
Increases
b)
decreases
c)
stay the same
d)
vary randomly
60.
The length of a certain conductor of resistance 100 is doubled and its cross-sectional area is halved. Its new resistance is 
a)
100
b)
50
c)
200
d)
400
61.
Factor which does not affect the resistance
a)
Type of material
b)
Length of material
c)
Mass of the material
d)
Area of the material
62.
which has the highest current flowing through it?
a)
R1
b)
R2
c)
R3
d)
All the same
63.

The unit of resistivity is

a)

Ω/m

b)

Ω/m2

c)

Ω.m

d)

Ω.m2

64.

The nichrome wire has a cross-sectional area of 1.3 × 10–7 m2 . Resistivity of nichrome = 1.1 × 10–6Ωm and a resistance of 53Ω. The length of the wire is

a)

0.63m

b)

63m

c)

0.0063m

d)

6.3m

65.

A wire of uniform diameter 0.28mm and a length of 1.50m has a resistance of 45Ω. It's resistivity is

a)

2.2 x 10-8Ωm

b)

36 Ωm

c)

1.8 x 10-6Ωm

d)

3.4 x 10-7Ωm

66.

A wire has a resistance R.

What is the resistance when both the length and radius of the wire are doubled?

a)

R/4

b)

R/2

c)

2R

d)

4R

67.

A cylindrical conductor of length l, diameter D, and resistivity ρ has a resistance R.

What is the resistance of another cylindrical conductor of length l, diameter D/2, and resistivity ρ?

a)

8R

b)

4R

c)

2R

d)

R

68.

A conductor obeys Ohm law if....

a)

the current in it is inversely proportional to the potential difference across its end

b)

the current in it is directly proportional to the potential difference across its end

c)

the resistance in it is directly proportional to the potential difference across its end

d)

the current in it is directly proportional to the resistance across its end

69.

A tungsten wire has resistance R at 20°C. A second

tungsten wire at 20°C has twice the length and half the

cross-sectional area of the first wire. In terms of R,

the resistance of the second wire is ...

a)

R/2

b)

R

c)

2R

d)

4R

70.
The conductor with higher temperature 
a)
high resistance 
b)
low resistance 
c)
same resistance 
d)
it does not affect the resistance 
71.

which of the following factor affects resistivity ?

a)

Length

b)

Area of cross section

c)

nature of the material

d)

Radius of the wire

72.

This is the formula for which physical quantity  ρlA\frac{\rho l}{A}  

a)

PP  power

b)

VV  voltage

c)

ρ\rho  resistivity

d)

RR  resistance

73.

Which of the following is the state flower of Minnesota?

a)

pink lady slipper

b)

red rose

c)

yellow dandelion

d)

sunflower

74.

Minnesota is the land of ________ lakes?

a)

9,999

b)

500

c)

20,000

d)

10,000

75.

The Minnesota Vikings play which sport?

a)

Soccer

b)

Baseball

c)

Football

d)

Hockey

76.
Who is the goddess of love in Greek mythology?
a)
Aphrodite
b)
Venus
c)
Athena
d)
Cybele
77.
How long did it take Leonardo da Vinci to paint Mona Lisa?
a)
5 years
b)
10 years
c)
7 years
d)
8 years
78.
Which animal sleeps with one eye open?
a)
gorillas
b)
dolphins
c)
snakes
d)
lions
79.
Which is the world's largest ocean?
a)
Artic
b)
Atlantic
c)
Indian
d)
Pacific
80.
Which are the three primary colors?
a)
orange, brown and green
b)
red, yellow and blue
c)
purple, orange and black
d)
yellow, green and red
81.
What sweet food made by bees using nectar from flowers?
a)
honey
b)
nectar
c)
juice
d)
pollen
82.
 Name the school that Harry Potter attended?
a)
Hogwarts
b)
Gryffindor
c)
Slytherin
d)
Hufflepuff
83.
Which country is home to the kangaroo?
a)
Australia
b)
Texas
c)
Cleveland
d)
Austria
84.
In the nursery rhyme, who sat on a wall before having a great fall?
a)
Humpty Dumpty
b)
Little Miss Muffet
c)
The Old Woman in the Shoe
d)
Puss n' Boots
85.
What is the top color in a rainbow?
a)
red
b)
blue
c)
green
d)
purple
86.
How many colors are in a rainbow?
a)
5
b)
6
c)
7
d)
8
87.
 On a farm a kid is a baby what?
a)
goat
b)
cow
c)
rabbit
d)
human
88.
What food do Giant Pandas normally eat?
a)
bamboo
b)
leaves
c)
roots
d)
bugs
89.
What color are Smurfs?
a)
blue
b)
purple
c)
green
d)
black
90.
 Who does the animated character Princess Fiona marry?
a)
Shrek
b)
Donkey
c)
Prince Charming
d)
Prince Phillip
91.
Which planet in our Solar System is known for having a ring?
a)
Earth
b)
Saturn
c)
Neptune
d)
Jupiter
92.
Who was the 16th president of the United States?
a)
Barack Obama
b)
Abraham Lincoln
c)
Thomas Jefferson
d)
George Washington
93.
Where did the Olympic Games originate?
a)
Greece
b)
USA
c)
Canada
d)
Germany
94.
What shape has 5 sides?
a)
Pentagon
b)
Hexagon
c)
Triangle
d)
Circle
95.
Where is the green light on a standard stoplight?
a)
Bottom
b)
Top
c)
Middle
96.
What is the third planet from the sun?
a)
Mercury
b)
Earth
c)
Jupiter
d)
Mars
97.
How many years are in a century?
a)
1000
b)
1
c)
10
d)
100
98.

True or False? London is the capital of England?

a)

False

b)

True

99.
What is the largest state in the United States?
a)
Texas
b)
Washington
c)
California
d)
Montana
100.
in the little mermaid, what did Ariel give up in order to get a pair of legs?
a)
her hair
b)
her sight
c)
her best friend flounder
d)
her voice
101.

What is the currency of India

a)

Rupee

b)

Ringgit

c)

Rupiah

d)

Real

102.

Who is your uncle's sister?

a)

Aunt

b)

Cousin

c)

Sister

d)

Mother

103.
In what year was the first Superbowl played?
a)
1958
b)
1962
c)
1951
d)
1967
104.
Which country eats the most chocolate (per person)?
a)
USA
b)
China
c)
Columbia
d)
Switzerland
105.

Every year, over 8,800 people injure themselves with what seemingly harmless, tiny object?

a)

Pencil

b)

Eraser

c)

Toothpick

d)

Paperclip

106.
What province/territory is #5?
a)
Saskatchewan
b)
Manitoba
c)
Ontario
d)
Quebec
107.
Which country is this?
a)
Costa Rica
b)
Nicaragua
c)
Panama
d)
Honduras
108.

Which country is this the flag of?

a)

Norway

b)

Sweden

c)

Finland

d)

Denmark

109.

Which country is this the flag of?

a)

Scotland

b)

England

c)

Ireland

d)

Northern Ireland

110.
Who was the original Disney Princess?
a)
Ariel
b)
Cinderella
c)
Snow White
d)
Jasmine
111.
What was Pixar’s first movie?
a)
Toy Story
b)
A Bug's Life
c)
Finding Nemo
d)
Cars
112.
Who is the author of the  Harry Potter series?
a)
Rick Riordan
b)
Walter Dean Myers
c)
Stephen King 
d)
J.K. Rowling
113.

Whose nose grew longer every time he lied?

a)

Pinocchio

b)

Tinkerbell

c)

Peter Parker

d)

Steve Rogers

114.

What is the largest mammal in the world?

a)

Humans

b)

Rhino

c)

Whale

d)

Elephant

115.

How many bones do sharks have?

a)

132

b)

568

c)

83

d)

0

116.

Which NFL quarterback has won the most Super Bowl titles?

a)

Aaron Rodgers

b)

Eli Manning

c)

Tom Brady

d)

Drew Brees

117.

Which rock band sang Yellow Submarine?

a)

The Rolling Stones

b)

AC/DC

c)

The Beatles

d)

Queen

118.

Luis Fonsi, singer of the song “Despacito,” is from which United States territory?

a)

Cuba

b)

Puerto Rico

c)

Florida

d)

California

119.

What year did One Direction appear on The X Factor?

a)

2008

b)

2015

c)

2010

d)

2006

120.

What money is used in Germany?

a)

Euros

b)

Dollars

c)

Yen

d)

Pound

121.

In which American city would you find the Golden Gate Bridge?

a)

St. Louis

b)

San Francisco

c)

San Diego

d)

Austin

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