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WorksheetsELECTRICITY
Total questions: 27
Worksheet time: 9mins
What particles move from atom to atom?
Protons
Neutrons
Electrons
Dust
What is electricity?
Gas
Liquid
Energy
Material
which is a good electric conductor
Plastic
Copper
Tungsten
distilled water
salt water
Electricity is a flow of electrons in a substance.
True
False
Man I don't know
Electrons move from negatively charged material to positively charged material
True
False
who invented the bulb?
Nicola Tesla
Albert Einstein
Thomas Alva Edison
Issac Newton
None of these
Electricity generated from the energy of falling water (potential energy of water) is called hydroelectricity.
True
False
Hydroelectric power plant can be located at
canals
rivers
dams
kitchens
Which country is the global leader in hydroelectricity/hydropower generation?
China
United States of America
Canada
Brazil
Hydropower produces ________ during its operation of electricity generation .
zero waste
minimal waste
a lot of waste
a lot of pollution
Where is the world's most powerful production of Hydroelectricity
Brazil
Australia
China
Africa
what is the closed path of electricity called?
bulb
battery
switch
circuit
what is the filament made of and why?
copper
high melting piont
copper
good conductor
plastic
insulator
tungsten
high melting point
what can just break a circuit?
switch
wire
fuse
who made the bulb available for public use?
Edison
Sir Joseph Swan
None
Tesla
Why is a battery important in an electrical circuit?
As a source of energy.
As a path for electricity to flow through.
As a connector to connect all parts of a circuit.
Why must parts of a circuit be properly connected before the bulb can light up?
To ensure that the bulb can light up.
To ensure that the battery can produce light in a closed circuit.
To ensure that electric current can flow through the closed circuit.
To produce heat.
Look at the diagram. Why did the bulb not light up?
The bulb was fused.
The battery had not enough electric current to light up the bulb.
The switch was opened and prevented electric current from flowing through the circuit.
how much energy emitted by the bulb is heat?
80%
20%
50%
none of these
what is the standard unit of electric current
volts
ampere
watts
kilowatt hours
how many types of currents are there
2
3
4
5
the standard unit of voltage is
volt
ampere
watts
none of these
how many terminals does a bulb have?
2
7
6
3
no. of terminals in a bulb
a 1
b 3
c 4
d none
a
b
c
d
why do people wear rubber gloves while working with electricity?
rubber is a bad conductor
rubber is metallic
rubber is an insulator
all of these
which source of electricity do you think is environment friendly
using fossil fuels
kinetic energy
hydropower
all of these
kilowatt-hour is the standard unit of
water
fire
voltage
electrical energy
