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Worksheets

Sephelean

Total questions: 66

Worksheet time: 1hrs 10mins

Name
Class
Date
1.

What would life be like without electricity?

4 lines
2.

The three types of electrical charges are positive, (a)   , and neutral

3.

When electrical charges build up on the surface of an object, (a)   occurs.

4.

Objects with like charges push against, or (a)   , each other.

5.

Objects with unlike charges pull toward, or (a)   , each other.

6.

A material that does not allow electricity to flow through it

a)

Conductor

b)

Insulator

c)

Resistor

7.

A material that reduces the flow of electrons

a)

conductor

b)

insulator

c)

resistor

8.

A material that allows electricity to flow through it easily

a)

conductor

b)

insulator

c)

resistor

9.

Objects with unlike charges pull toward, or (a)   , each other.

10.
The unit for current is the 
a)
Volt
b)
Ohm
c)
Electron
d)
Amp
11.
In a ________ circuit there are multiple paths for the current to take.
a)
Series
b)
Parallel
12.
In a _________ circuit, if one bulb goes out then the entire circuit doesn't work.
a)
Series
b)
Parallel
13.
What is the unit for resistance?
a)
Volts
b)
Amperes
c)
Ohms
14.
What type of circuit is pictured?
a)
series
b)
parallel
15.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
16.
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
17.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
18.
What resistance is needed to cause a 20A current flow because of a 100V battery?
a)
0.2Ώ
b)
2000Ώ
c)
120Ώ
d)
5Ώ
19.
Lightning is an example of _________.
a)
static electricity
b)
current electricity
c)
watts
d)
voltage
20.
What is a closed path for electrons to flow through?
a)
static electricity
b)
circuit
c)
amperes
21.
As the resistance in a circuit increases, the electric current __________.
a)
increases
b)
decreases
c)
stays the same
22.
Which formulas represents Ohm's law?
a)
V=IR
b)
R=IV
c)
I=RV
23.
What type of circuit is pictured?
a)
series
b)
Parallel
24.
Which type of current comes from a battery?
a)
alternating current (AC)
b)
direct current (DC)
25.
A circuit made of wires, a lamp, a switch, and a cell is shown at the right. What change is needed for the lamp to glow? 
a)
The switch needs to be opened.
b)
The switch needs to be closed.
c)
The cell needs an insulator.
d)
The wire needs to be connected to the bottom of the cell.
26.
Which statement best explains why the lamp does not glow? 
a)
Circuit 1 is an open circuit.
b)
 Circuit 1 is a closed circuit.
c)
 The negative terminal of Circuit 1 is connected to the cell.
d)
The positive terminal of Circuit 1 is connected to the cell.
27.

Which of these will repel each other?

a)

Negatively charged balloon and positively charged sphere.

b)

Negatively charged balloon and neutral sphere.

c)

Negatively charged balloon and negatively charged sphere.

d)

Negatively charged balloon and neutral wall.

28.

Electrons flow in the same direction as the current.

a)

True

b)

False

29.

If the light bulb in the middle burned out, what would happen to the other two?

a)

The light bulb to the left would stay lit, but the one to the right would turn off.

b)

They would both stay lit.

c)

The light bulb to the right would stay lit, but the one to the left would turn off.

d)

They would both turn off.

30.

A form of energy caused by the movements of electrons

a)

electricity

b)

electron

c)

electric current

d)

series circuit

31.

Flow of electrons or charge through a circuit.

a)

parallel circuit

b)

closed circuit

c)

open circuit

d)

electric current

32.

a path in which electrons from a voltage or current source flow. Consists of a battery, a wire, a load & a switch to open and close a circuit.

a)

electric circuit

b)

series circuit

c)

electricity

d)

electric current

33.

an incomplete circuit through which electricity will not flow

a)

open circuit

b)

electron

c)

closed circuit

d)

electric circuit

34.

An electric circuit through which current can flow in an uninterrupted path.

a)

closed circuit

b)

volts

c)

conductor

d)

insulator

35.

A material that allows heat and electricity to pass through it.

a)

electron

b)

parallel circuit

c)

conductor

d)

insulator

36.

A material that does not allow heat or electrons to move through it easily.

a)

methods of generating power

b)

closed circuits

c)

conductor

d)

insulator

37.

An electric circuit with only one path through which charge can flows. All components are connected in a series.

a)

voltage circuit

b)

series circuit

c)

parallel circuit

d)

electric current

38.

A circuit that contains more than one path for current flow.

a)

voltage circuit

b)

series circuit

c)

parallel circuit

d)

electric current

39.

A measure of how strong the available electricity is.

a)

amps

b)

volts

c)

ohms

d)

m/s

40.

coal fired, hydroelectricity, gas fired, solar, wind

a)

parallel circuit

b)

series circuit

c)

methods of generating power

d)

volts

41.

The parts of an atom which move from one atom to the next to create a flow of electricity

a)

current

b)

electron

c)

proton

d)

neutron

42.

A device that moves a magnet to produce an electric current is known as-

a)

electrical generator

b)

electric motor

c)

electromagnet

d)

transformer

43.

The type of magnet in which the magnetic field is produced by an electric current is called an-

a)

horseshoe magnet

b)

bar magnet

c)

refrigerator magnet

d)

electromagnet

44.

An electric current can be created in a coil of wire by having a-

a)

moving magnetic field

b)

stationary magnetic field

45.

To create a powerful electromagnet, select wire at a _______ diameter and a create ________ loops on a metal rod.

a)

small; less

b)

small ; more

c)

large ; less

d)

large ; more

46.

Connecting a battery to a metal rod looped with metal wire creates a(n) ______________________ force.

a)

magnetic

b)

mechanical

c)

gravitational

d)

friction

47.
The only charges that can move from one object to another are___________ charges.
a)
electric
b)
neutral
c)
positive
d)
negative
48.

Which of the following charge pairs would repel each other? (Choose all that apply)

a)

positive and negative

b)

negative and negative

c)

positive and positive

d)

negative and positive

49.

Determine how the following factor would affect the amount of resistance: longer wire

a)

increase resistance

b)

decrease resistance

c)

would not affect resistance

50.

Determine how the following factor would affect the amount of resistance: cooler temperature

a)

increase resistance

b)

decrease resistance

c)

would not affect resistance

51.

Determine how the following factor would affect the amount of resistance: insulating material

a)

increase resistance

b)

decrease resistance

c)

would not affect resistance

52.

Determine how the following factor would affect the amount of resistance: thick wire

a)

increase resistance

b)

decrease resistance

c)

would not affect resistance

53.

If you increase the size of the resistor and keep the voltage the same, what will happen to the current?

a)

Current will increase

b)

Current will decrease

c)

Current will stay the same

54.
The unit for current is the 
a)
Volt
b)
Ohm
c)
Electron
d)
Amp
55.
What is the unit for resistance?
a)
Volts
b)
Amperes
c)
Ohms
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.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
58.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
59.

What type of circuit is this?

a)

Series

b)

Parallel

c)

Simple

60.
What type of circuit is pictured?
a)
series
b)
parallel
61.

In a series circuit, how is the brightness of a light bulb affected when another bulb is connected?

a)

It gets brighter

b)

It stays the same

c)

It gets dimmer

d)

It goes out

62.
In a ________ circuit there are multiple paths for the current to take.
a)
Series
b)
Parallel
63.
In a _________ circuit, if one bulb goes out then the entire circuit doesn't work.
a)
Series
b)
Parallel
64.

What is the voltage at the battery?

a)

9.33 V

b)

10 V

c)

12 V

d)

22 V

e)

28 V

65.

If a fourth resistor was added, what would happen to the total voltage of the circuit?

a)

total voltage would increase

b)

total voltage would decrease

c)

total voltage would stay the same

66.

What is the voltage at V1 (resistance is the same at all resistors)

a)

3V

b)

6V

c)

9V

d)

12V

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