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6 & 7 - Electricity & Magnetism

Total questions: 41

Worksheet time: 45mins

Name
Class
Date
1.
An example of a conductor is :
a)
a glass paperweight
b)
a plastic cap
c)
a metal screw
d)
a wooden handle
2.
An alternating current:
a)
Flows in 1 direction only
b)
turns on and off repeatedly
c)
flows in one direction only
d)
reverses direction repeatedly
3.
An example of an insulator is:
a)
iron
b)
silver
c)
copper wire
d)
rubber
4.
An electrical current produces a(n):
a)
magnetic field
b)
magnetic domains
c)
electrical resistance
d)
both b& c are correct
5.
The buildup of charges on an object is called:
a)
positive charge
b)
static charge
c)
negative charge
d)
static discharge
6.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
7.
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.
8.
Which of the following is shown in the picture?
a)
Electromagnet
b)
Electric generator
c)
Electric motor
d)
Transformer
9.
Why are metals useful for making electrical wire?
a)
Metals do not bend.
b)
Metals hold much heat.
c)
Metals are insulators.
d)
Metals are conductors.
10.
Which of these causes electrically charged objects to attract or repel each other?
a)
An equal number of protons.
b)
An equal number of electrons.
c)
An unequal number of electrons.
d)
An unequal number of molecules.
11.
What is the unit of electrical power?
a)
watt
b)
volt
c)
ampere
d)
ohm
12.
Which of the following materials allows charges to flow easily?
a)
wood
b)
an electrical insulator
c)
glass
d)
an electrical conductor
13.
Which of the following statements describes the interaction between magnetic poles?
a)
Like poles repel each other, and opposite poles attract each other.
b)
Like poles attract each other, and opposite poles repel each other.
c)
Opposite poles repel each other.
d)
Like poles attract each other.
14.
The number of electrons flowing is called _____.
a)
voltage.
b)
power.
c)
current.
d)
resistance.
15.
The process of transferring charge by touching or rubbing 
a)
Induction 
b)
Conduction 
c)
Friction 
d)
Conductor 
16.
The rearrangement of electrons on a neutral object caused by a nearby charged object 
a)
Induction 
b)
Conduction 
c)
Friction 
d)
Conductor 
17.
Electric current that flows in only one direction. 
a)
Voltage 
b)
Direct Current 
c)
Alternating Current
d)
Series Circuit 
18.
The flow/movement of electric charges 
a)
Voltage
b)
Resistance 
c)
Current 
d)
Circuit 
19.
A closed path that electric current follows 
a)
Voltage
b)
Current
c)
Resistance 
d)
Circuit
20.
The tendency for a material to oppose the flow of electrons, changing electrical energy into thermal energy and light.
a)
Voltage
b)
Current
c)
Resistance
d)
Circuit 
21.
According to this law, the current in a circuit equals the voltage difference divided by the resistance. 
a)
Law of Conservation of Energy 
b)
Ohm's Law 
c)
Law of Conservation of Charges
d)
Newton's First Law 
22.
The current has only has one loop to flow through in this circuit. 
a)
Series Circuit 
b)
Parallel Circuit 
23.
This circuit contains two or more branches for current to move through. 
a)
Series Circuit 
b)
Parallel Circuit 
24.

What is the unit for current

a)

Watts

b)

Ohms

c)

Volts

d)

Amperes

25.

What is the unit for voltage

a)

Watts

b)

Ohms

c)

Volts

d)

Amperes

26.

What is the unit for resistance

a)

Watts

b)

Ohms

c)

Volts

d)

Amperes

27.

What is the symbol for resistance

a)

𝝮

b)

A

c)

V

d)

W

28.

What is the symbol for voltage

a)

𝝮

b)

A

c)

V

d)

W

29.

What is the symbol for current

a)

𝝮

b)

A

c)

V

d)

W

30.

What are facts about electricity

a)

Flow of electrons

b)

Provides heat

c)

Provides sound

d)

All of the above

31.

What is resistance?

a)

Flow of electrical charge

b)

Pressure from power to push electrons

c)

Limits the flow of electrons

32.

What is voltage?

a)

Flow of electrical charge

b)

Pressure from power to push electrons

c)

Limits the flow of electrons

33.
What type of circuit is pictured?
a)
series
b)
Parallel
34.
Which type of current comes from a battery?
a)
alternating current (AC)
b)
direct current (DC)
35.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
36.
In un-magnetized materials the domains are __________ aligned.
a)
super
b)
slightly
c)
randomly
d)
always
37.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles. 
d)
the middle.
38.

If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate?

a)

The magnetic field

b)

The electrostatic field

c)

The piezoelectric effect

d)

The chemical reaction of the magnet and the filings

39.

What causes magnetism?

a)

the sun

b)

moving neutrons

c)

moving charges

d)

friction

40.

How can a wire become magnetic?

a)

point it north

b)

add a resistor

c)

heat it up

d)

run a current through it

41.
Magnets that are arranged like this will _______. 
a)
move away from each other (repel)
b)
move towards each other (attract)

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