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ELECTRICITY -STATIC ELECTRICITY

Total questions: 103

Worksheet time: 52mins

Name
Class
Date
1.

What is the formula for kinetic energy?

a)

KE=12mv2KE=\frac{1}{2}mv^2

b)

KE=2mv2KE=2mv^2

c)

KE=mv2KE=mv^2

d)

v=2KEmv=\frac{2KE}{m}

2.

Which of these is not a formula for power?

a)

P=IVP=IV

b)

P=I2RP=I^2R

c)

P=EtP=\frac{E}{t}

d)

P=V2RP=V^2R

3.

What is the name of this device?

a)

electric circuit

b)

electric motor

c)

electromagnet

d)

generator

4.

Which energy transformation is found in generator?

a)

Chemical energy to Electrical energy

b)

Chemical energy to Mechanical energy

c)

Electrical energy to Mechanical energy

d)

Mechanical energy to Electrical energy

5.

How would you describe this circuit?

a)

Open

b)

Closed

c)

Efficient

d)

Parallel

6.
Which is a conductor?
a)
Glass
b)
Penny
c)
Rubber
7.
Which is an insulator?
a)
Penny
b)
Rubber
Nail
c)
Nail
Rubber
8.
An object that does not conduct electricity.
a)
Insulator
b)
Conductor
c)
Electromagnet
9.
Which of these materials makes a good insulator of electricity?
a)
plastics
b)
salt water
c)
aluminum foil
d)
silver
10.
What do magnets stick to?
a)
copper
b)
wood
c)
iron
d)
plastic
11.
When two magnets attract, they ______________
a)
push apart
b)
change color
c)
get colder
d)
pull together
12.
When two magnets repel, they ________________
a)
change color
b)
pull together
c)
push apart
d)
get colder
13.
A north pole and a south pole will attract.
a)
True
b)
False
14.
True or False: All metals stick to magnets.
a)
True
b)
False
15.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
16.

How many terminals do each cell have?

a)

3

b)

4

c)

2

17.

In dry cell it acts as positive terminal

a)

zinc case

b)

carbon rod

c)

both

18.

Which of the following chemicals are NOT used in a dry cell?

a)

Ammonium Chloride

b)

Blue Vitriol

c)

Manganese dioxide

19.

A battery is made of multiple_____?

a)

Circuits

b)

Cells

c)

Switches

d)

None of these

20.

A parallel circuit has only one path to flow through. True or False

a)

True

b)

False

21.

What does MCB stand for?

a)

Miniature Circuit breaker

b)

Miniature Current Breaker

c)

Miniature Component Breaker

d)

Miniature Charge Breaker

22.

When there is too much current in an electric circuit , the wires may catch fire. To prevent this a device named_____ is connected to circuits

a)

Fire Preventer

b)

Fuse

c)

Nichrome

d)

Electromagnet

23.

Nichrome is an alloy of _____

a)

Nickel And Chromium

b)

Nitrogen and Chromium

c)

Nikel And Chromium

d)

None of these

24.

The Definition of voltage is____

a)

The measurement of electric current

b)

The push or force of electric current

25.

_____ Discovered that when electricity was passed through a wire , it caused a nearby compass needle to deflect

a)

William Sturgeon

b)

Hans Christian Oersted

c)

Thomas Edison

d)

None of these

26.

Region around a magnet is known as its_______

a)

Magnetic material

b)

Magnetic Affect

c)

Magnetic field

27.

The Definition of Resistance is______

a)

Resistance is a property of a conductor due to which it resists the flow of electric current

b)

Resistance converts electric current to heat

28.

Electricity flows from ____ to ____?

a)

Negative to positive (- to +)

b)

Positive to negative (+ to -)

29.

The flow of electric charges is

a)

voltage

b)

current

c)

resistance

d)

electricity

30.
A closed path that electric current flows is a
a)
circuit
b)
wire
c)
track
d)
hallway
31.

What is the unit of measurement for current?

a)

Amperes

b)

Ohm's

c)

Volts

d)

Watts

32.

In our circuit builds, a ________________________provides the voltage to push current through the circuit.

a)

switch

b)

battery

c)

resistor

d)

wire

33.

Opposite charges ____________________.

a)

repel

b)

attract

34.

When a switch is _________________, electric current can move through the circuit.

a)

off

b)

on

35.

Like charges ______________________.

a)

repel

b)

attract

36.

When the switch is ______________, there is no current running through the circuit.

a)

on

b)

off

37.
How do wires work?
a)
they become an electrical charge
b)
they bend electricity easily
c)
they keep the charge from moving randomly
d)
they allow a current of electricity to flow 
38.
What is the main purpose of a battery?
a)
to pump electricity through the wires
b)
to make things go
c)
to provide just the right amount of energy needed
d)
to replace household electricity
39.
How is electricity generated in a battery?
a)
through a solar reaction
b)
through kinetic energy
c)
by a chemical reaction
d)
by the flow of particles
40.
A continuous flow of negatively charged particles/electrons
a)
Electrons
b)
Current
c)
Circuit
d)
Fuse
41.
A thin piece of metal that melts and makes a gap in the circuit if the energy is too great
a)
Fuse
b)
Current
c)
Load
d)
Circuit
42.
A material that allows electric energy to flow through it easily
a)
Conductor
b)
Insulator
c)
Wire
d)
Circuit
43.
The energy associated with the movement of charged particles from one place to another
a)
Series circuit
b)
Parallel circuit
c)
Electrical energy
d)
Heat energy
44.
A material that connects the parts of the circuit together and carries electric current
a)
Current
b)
Wire
c)
Circuit
d)
Load
45.
A type of circuit where all parts of the circuit are connected in a single loop
a)
Open
b)
Closed
c)
Parallel
d)
Series
46.
The part that completes the circuit and allows current to flow if closed
a)
Load
b)
Fuse
c)
Current
d)
Switch
47.
When a circuit's loop is complete, the circuit is called a 
a)
Closed circuit
b)
Open circuit
c)
Series
d)
Parallel
48.
This changes electrical energy to another form of energy like heat, light, sound.
a)
Fuse
b)
Resistor
c)
Motor
d)
Battery
49.
The pathway taken by an electric current
a)
Current
b)
Series
c)
Circuit
d)
Parallel
50.
If there is a gap and the circuit is not complete, it is called 
a)
Series
b)
Parallel
c)
Closed
d)
Open
51.
This material keeps electricity from passing through it
a)
Insulator
b)
Conductor
c)
Resistor
d)
Wire
52.
In this type of circuit, receivers are connected to different branches
a)
Parallel
b)
Series
c)
Open
d)
Closed
53.
The SI unit of electric potential
a)
Volt
b)
Ohm
c)
Omega
d)
Amp
54.
Metal is an example of a conductor
a)
True
b)
False
55.
Rubber is not an insulator.
a)
True
b)
False
56.
Pure/distilled water is a conductor.
a)
True
b)
False
57.
Miss Kenney and all of her students are conductors.
a)
True
b)
False
58.
Neutrons are negative
a)
True
b)
False
59.
Electrons are negative
a)
True
b)
False
60.

Walking across a carpet is an example of charge being transferred by

a)

friction.

b)

induction.

c)

contact.

61.

What charge does an electron have?

a)

negative (-)

b)

positive (+)

c)

neutral or no charge (0)

62.

Electric charges that are alike _______ each other.

a)

Attract

b)

Repel (move away)

63.
What method of static charging is shown in this picture
a)
Polarization
b)
Friction
c)
Induction
d)
Conduction
64.

If an object has more positive than negative charges, its electrical charge is...

a)

positive

b)

negative

c)

neutral or no charge

d)

opposite

65.
If an object has the same number of positive and negative charges, its electrical charge is...
a)
positive
b)
negative
c)
neutral or no charge
d)
opposite
66.
One example of static electricity is...
a)
rain
b)
thunder
c)
lightning
67.
Atoms may have neutrons which have...
a)
positive charge
b)
negative charge
c)
no charge
d)
opposite charge
68.
The girl's hair and the comb are attracting  one another.  The hair and the comb have
a)
opposite charges
b)
like charges
69.
Two things with opposite charges will
a)
attract one another.
b)
repel one another.
70.

Electric force is described as

a)

The force between charged objects.

b)

A buildup of charges on an object.

c)

Electric charges flow through a substance

d)

Parts of an atom

71.

An electric FIELD is

a)

The area inside an electric fence

b)

The region around a charged object where the object’s electric force is exerted on other charged objects

c)

The same thing as electric force

d)

The neutral region in an area

72.

Static electricity occurs because...

a)

of thunder

b)

of humid air

c)

of neutral particles adding up

d)

of a buildup of charges on an object.

73.

The loss of static electricity as electric charges transfer from one object to another.

a)

Static Discharge

b)

Negative Charge

c)

Positive Charge

d)

Neutral Charge

74.

A method of redistributing the charge on an object by means of the electric field of another object

a)

Conduction

b)

Induction

c)

Convection

d)

Electricity

75.

Electric charges flow through a substance

a)

Induction

b)

Deduction

c)

Conduction

d)

Insulation

76.

Bending a stream of water with a charged up ruler is an example of

a)

friction.

b)

induction.

c)

contact.

77.

What charge does a proton have?

a)

negative (-)

b)

positive (+)

c)

neutral or no charge (0)

78.

The accumulation of excess electric charge on an object is called

a)

Static electricity

b)

Electric discharge

c)

Resistance

d)

Current electricity

79.
If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?
a)
A positive charge.
b)
A negative charge.
c)
A neutral charge
d)
No charge at all
80.
What is the major difference between static electricity and current electricity?
a)
Current electricity involves a continuous flow of neutrons; static electricity is a sudden transfer of protons
b)
Current electricity can be deadly; static electricity is almost always safe
c)
In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons
d)
Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons
81.

What can happen when you touch a metal doorknob after rubbing your shoes on the carpet?

a)

The doorknob sends a burst of electric current into your body

b)

Millions of electrons go from your finger into the doorknob

c)

Our negatively charged body becomes positively charged

d)

Our finger becomes negatively charged

82.

Sources of electricity are

a)

generator

b)

cell

c)

solar cell

d)

all the above

83.

1 kWh =

a)

10 units

b)

2 units

c)

3 unit

d)

1 unit

84.

safety devices are

a)

MCB

b)

fuse

c)

switch

d)

both (a) and (b)

85.

Live wire is ______ in colour

a)

blue

b)

black

c)

red

d)

green

86.

Fuse is based on

a)

melting of wire

b)

cooling of current

c)

wiring

d)

heating effect of current

87.

The earth wire carries

a)

220 V

b)

110 V

c)

100 V

d)

no current

88.

Fuse is an alloy of __________ and __________

(a)  

89.

Fuse wire has

a)

low melting point

b)

high melting point

c)

high resistance

d)

both a and c

90.

Fuse wire is connected in _______ with live wire

a)

parallel

b)

series

91.

Resistance depends on

a)

Area of cross section

b)

length of the conductor

c)

resistivity of material

d)

all the above

92.

Which is the symbol for Electric Cell

a)
b)
c)
d)
93.

Expansion of MCB

a)

Miniature

Circuit Breaker

b)

Main

Circuit Breaker

c)

Mega

94.

Who invented the first electric cell

a)

Thomas Alva Edison

b)

Alessandro Volta

c)

Newton

d)

Eienstein

95.

Nichrome is a

a)

Filament

b)

Element

96.

The combination of two or more cells is called

a)

Battery

b)

CELLS

97.

Tungsten is a

a)

Filament

b)

Element

98.

We Should Buy products with ISI Mark

a)

True

b)

False

99.

Which State Assigns the Standard For ISI Mark

a)

New Delhi

b)

Tamil Nadu

c)

Andra Pradesh

d)

Karnataka

100.

The filament of a bulb is made up of

a)

Tungsten

b)

Copper

c)

Gold

101.

In the circuit shown in figure, when the switch is moved to ’ON’ position,

a)

the bulb A will glow first

b)

the bulb A will glow first

c)

(a) the bulb A will glow first

d)

all bulbs will glow together

102.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
103.
This circuit has more than one loop. When one light goes out, the others stay on. 
a)
closed circuit
b)
series circuit
c)
parallel circuit
d)
open circuit

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