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Electricity- Assessment

Total questions: 67

Worksheet time: 37mins

Name
Class
Date
1.

What is the name of this component?

a)

battery

b)

cell

c)

open switch

d)

lamp

2.

What is the name of this component?

a)

battery

b)

cell

c)

open switch

d)

lamp

3.

What is the name of this component?

a)

fuse

b)

cell

c)

motor

d)

lamp

4.

What is the name of this component?

a)

fuse

b)

cell

c)

battery

d)

wire

5.

What is the name of this component?

a)

closed switch

b)

cell

c)

open switch

d)

wire

6.

What is the name of this component?

a)

fuse

b)

cell

c)

bell

d)

lamp

7.

What is the name of this component?

a)

fuse

b)

cell

c)

wire

d)

bell

8.

An electric current is defined as the flow of ? through a conductor.

a)

electrons

b)

protons

c)

nuclei

d)

ohms

9.

The unit of Voltage is the ? , which is represented by the letter ? .

a)

ampere/A

b)

resistance/R

c)

volt/V

d)

watt/W

10.
Current that reverses direction in a regular pattern is called ____. 
a)
direct current 
b)
circuit current
c)
magnetic current
d)
alternating current 
11.
Current that does NOT reverse direction is called ____. 
a)
magnetic current
b)
direct current
c)
circuit current
d)
alternating current
12.
What is electric current?
a)
The flow of electrons
b)
The flow of protons
c)
The flow of neutrons
d)
The flow of atoms
13.

What is the unit of measurement for resistance?

a)

Voltage

b)

Ampere

c)

Watts

d)

Ohms

14.
Which resistor will prevent the most current flow?
a)
1 ohm
b)
100 ohms
c)
1000 ohms
d)
0.5k ohms
15.
How does resistance affect current?
a)
less resistance - less current
b)
more resistance - less current
c)
more resistance - more current
d)
resistance does not affect current
16.
Static electricity is:
a)
electricity flowing in a wire
b)
the buildup of electric charges on an object
c)
when protons move between objects
17.
Two objects with LIKE static charges will
a)
attract each other
b)
even out in the end
c)
repel each other
d)
cause a spark
18.

Which is an example of static discharge?

a)

a motor

b)

lightning

c)

thunder

d)

insulators

19.

This allows energy to flow.

a)

conductor

b)

insulator

20.

This does not allow energy to flow.

a)

insulator

b)

conductor

21.

Which is NOT a conductor

a)
b)
c)
d)
22.

Which is NOT an insulator

a)
b)
c)
d)
23.
What is the BEST example of a conductor? 
a)
A wooden block
b)
A ceramic mug
c)
A glass cup
d)
A metal bowl
24.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
25.
What kind of circuit is this?
a)
series
b)
parallel
26.

Which best describes a parallel circuit?

a)

Electricity flows along one pathway.

b)

The flow of electricity comes from one battery.

c)

Electricity flows along more than one pathway.

d)

The flow of electricity comes from more than one battery.

27.

The movement of electrons from atom to atom in a line results in a flow of _____.

a)

amperage.

b)

electric current.

c)

electromagnetic connectors.

28.

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

a)

True.

b)

False.

29.

Which statement is true?

a)

The light bulb will light up because the circuit is complete.

b)

The light bulb will light up because the circuit is broken.

c)

The light bulb will not light up because the circuit is complete.

d)

The light bulb will not light up because the circuit is open.

30.

What type of circuit is the image showing?

a)

Parallel

b)

Series

c)

No circuit

31.

A Charging system producing 14.5 Volts with a current flow of 43.5 Amps, what is the circuit resistance

a)

58 Amps

b)

0.33 Amps

c)

13 Amps

d)

1 Amp

32.

If the current through a circuit is 2 A and the resistance of a light bulb in the circuit is 10 Ohms, what is the voltage difference across the light bulb?

a)

5 V

b)

12 V

c)

0.2 V

d)

20 V

33.

What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts

a)

15 Ohms

b)

4 Ohms

c)

0.3333 Ohms

d)

2 Ohms

34.

What is the voltage in an electric circuit?

a)

The power of the electrons

b)

The charge of the electrons

c)

The energy of the electrons

35.

Where does the current get its voltage from?

a)

The lightbulb

b)

The battery

c)

The wires

36.

What is the role of a multimeter in an electric circuit?

a)

To measure the amount of voltage, current, and resistance. It can also be used to test continuity between two points in an electrical circuit.

b)

To measure the amount of light in an electric circuit

c)

To measure the amount of sound in an electric circuit

37.

Which of the circuits in the diagram are series circuits?

a)

A

b)

B

c)

C

d)

D

38.

Which of the circuits in the diagram are parallel circuits?

a)

A

b)

B

c)

C

d)

D

39.

Which of the circuits in the diagram will have lightbulbs that are lit?

a)

A

b)

B

c)

C

d)

D

40.

________________ Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit.

a)

Ohm's

b)

Newton's

c)

Criminal

41.

How do you calculate resistance?

a)

Current x Voltage

b)

Voltage x Power

c)

Voltage ÷ Current

d)

Current ÷ Voltage

42.

What effect does a hotter temperature have on resistance?

a)

No effect

b)

Increases resistance

c)

Decreases resistance

d)

Stays the same

43.

What other factor of a wire could affect its resistance?

a)

Material its made of

b)

How shiny it is

c)

Colour

44.

The primary function of a fuse is to

a)

Open the circuit

b)

Protect the appliance

c)

Protect the line

d)

Prevent excessive currents from flow through the circuit

45.

What causes a fuse to blow?

a)

High Voltage

b)

High Resistance

c)

High Current

d)

High Power

46.

What property of fuse wire enables it to act as a safety feature?

a)

it's Boiling point

b)

it's strength

c)

it's Melting point

d)

it's Texture

e)

it's flexibility

47.

what happens to a 15A fuse when the current reaches 14 amperes?

a)

it sets alight

b)

it melts

c)

it explodes

d)

it cracks

e)

nothing happens

48.

This is the symbol for a...

a)

Fixed Resistor

b)

Variable Resistor

c)

Light Dependent Resistor

d)

Fuse

49.

Current that is used in most household appliances?

a)

magnetic current

b)

direct current

c)

circuit current

d)

alternating current

50.

Check all the examples that produce static electricity.

a)

lightning

b)

a dry cell battery

c)

a power plant

d)

rubbing a latex balloon and wool together

e)

a rechargeable battery

51.
A series circuit has how many pathways for the electrons to flow?
a)
Two
b)
One
c)
Many
d)
Zero
52.
What is one problem with using a series circuit? 
a)
It has a lot of series. 
b)
If one light goes down, they all go down! 
c)
It doesn't work properly.
d)
There are no problems. 
53.
What is a benefit of using a parallel circuit?  
a)
It gets confusing.
b)
There are no problems.
c)
If one light goes out, it does not affect the others. 
d)
If one light goes out, they all go out. 
54.
If the voltage across the battery was 10V in this diagram. What would the voltage across each bulb be?
a)
10V
b)
5V
c)
20V
d)
0V
55.
Which of the two circuits would have the brightest bulbs? 
a)
A
b)
B
56.
An ammeter is a device that can be used to measure
a)
Current
b)
Voltage
c)
Resistance
d)
Power
57.
A voltmeter is described as a device that can be used to measure
a)
Voltage
b)
Current
c)
Resistance
d)
Power
58.

What is wrong with the diagram in picture

a)

nothing wrong

b)

sum of Current in branches should be equal to 5A, but is showing 6A

c)

The two branches should not have the same current

59.
What would the voltmeter read
a)
1V
b)
2V
c)
3V
d)
6V
60.
Which Voltmeter will give the lowest reading?
a)
V1
b)
V2
c)
V3
61.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
62.
Surrounding every magnet is a __________  __________.
a)
magnetic field
b)
electrical current
c)
another magnet
d)
an enemy
63.
What is most likely to happen when the switch is closed?
a)
A magnetic field should be produced
b)
The nail will rust
c)
The battery will explode
d)
The wire will catch on fire
64.
What are the ends of a magnet called?
a)
East and west poles
b)
Left and Right ends
c)
North and South ends
d)
North and South poles
65.
How do electromagnets differ from regular magnets? 
a)
A. They  can be turned off and on 
b)
B. Their polarity can be reversed
c)
C. Their strength can be changed
d)
D. All of the above
66.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
67.

What are the components of the electromagnets?

a)

battery, wire and bulb

b)

battery , copper wire and plastic bottle

c)

battery, copper wire and iron nail

d)

battery, wire and aluminum

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