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Worksheetselectricity
Total questions: 20
Worksheet time: 11mins
What are Edison's most important inventions?
Lighter, Train and bamboo food
Phonograph, Electric light bulbs and a wire called filament
Teddy bears and rainbows
What does the light bulb produce?
Produced light for a long period of time.
A machine that recorded sound.
This was the first motion picture camera.
What is Phonograph?
That produced light for a long period of time.
This was the first motion picture camera.
A machine that recorded and play sound and music.
A filament is a...
wire
a form of energy
a type of bulb
What is electricity?
Gas
Liquid
Energy
Material
Particles with the same charge...
they do nothing
they attract each other
they repel each other
Electricity
is energy
flows everywhere
is used everyday in our life
all choices are correct
Which subatomic particle has a negative charge?
proton
neutron
electron
Combing your hair with a plastic comb produces static electricity.
True
False
When we talk about electricity, we can distinguish two types of materials:
Hard and soft.
Conductors and insulators.
Rigid and flexible.
Which ones are conductive materials:
Wood
Metal
Water
Copper
Insulating materials are....
Copper
Plastic
Iron
Wood
Similar or equal poles....................each other.
attract
repel
The smallest particle of an element.The basic unit of matter
Matter
Atom
Volume
Metal
is the positive part of an atom
(a)
is the negative part of an atom
(a)
is the neutral part of an atom
(a)
Who is the inventor of the bulb?
Thomas Emerson
Thomas Edison
Edward Edison
Edward Thomson
An electrical cable consists of cooper wire wrapped in a plastic covering because...
we touch the insulator and the conductor is inside
we touch the conductor and the powerless conductor is inside
we touch the insulator and the powerless insulator is inside
we touch the conductor and the insulator is inside
