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WorksheetsUNIT 6 - NATURAL SCIENCE: ELECTRICITY AND MAGNETISM
Total questions: 55
Worksheet time: 28mins
This is _?_ .
an insulator
an atom
a conductor
Number 1 is _?_ .
a proton
the nucleus
an atom
an electron
Number 2 is _?_ .
a neutron
the nucleus
an electron
Number 3 is _?_ .
an electron
an atom
a proton
Number 4 is _?_ .
a proton
the nucleus
an atom
an electron
An electron has _?_ .
no electrical charge
a positive electrical charge
a negative electrical charge.
A neuron has _?_ .
no electrical charge
a positive electrical charge
a negative electrical charge.
The nucleus of an atom has _?_ .
no electrical charge
a positive electrical charge
a negative electrical charge.
A proton has _?_ .
no electrical charge
a positive electrical charge
a negative electrical charge.
_?_ is energy that does not flow. One example is an electrical storm.
Static electricity
An electrical current
_?_ happens when there is an exchange of electrons between elements.
Static electricity
An electrical current
It occurs when an object builds up a negative charge.
Static electricity
An electrical current
_?_ are elements that allow electrons to move without much resistance. Some examples are aluminum and copper.
Insulators
Conductors
_?_ are elements that do not allow electrons to move easily. Some examples are rubber and plastic.
Insulators
Conductors
Number 1 is _?_ .
a load
a power source
a conductor
a switch
Number 2 is _?_ .
a load
a power source
a conductor
a switch
Number 3 is _?_ .
a load
a power source
a conductor
a switch
Number 4 is _?_ .
a load
a power source
a conductor
a switch
It is the part of an electrical circuit that provides energy.
power source
switch
conductor
load
It is the part of an electrical circuit that converts electricity into another form of energy.
power source
switch
conductor
load
It is the part of an electrical circuit that allows electricity to flow through the circuit.
power source
switch
conductor
load
It is the part of an electrical circuit that opens and closes the circuit.
power source
switch
conductor
load
Magnets that are found in nature. One example is lodestone.
artificial magnets
natural magnets
Magnets that are made by people.
artificial magnets
natural magnets
A magnet that never loses its magnetism.
an induced magnet
a permanent magnet
A magnet that only has temporary magnetism.
an induced magnet
a permanent magnet
A magnet's ability to attract certain metals.
magnetic force
magnetic field
It is the area around a magnet where magnetic force has an effect.
magnetic force
magnetic field
A force that pushes objects apart.
attraction (attract)
repulsion (repel)
A force that pulls objects together.
attraction (attract)
repulsion (repel)
A part of a compass that turns on a pivot.
a compass rose
a compass needle
A diagram on a compass.
a compass rose
a compass needle
The object in this photo is _?_ .
a natural magnet
an artificial magnet.
The red part is the _?_ .
north pole
south pole
The blue part is the _?_ .
north pole
south pole
The two poles are different because the have opposite magnetic forces. These opposite poles _?_ each other.
attract
repel
The particles around the artificial magnet are iron filings. They are spreading out around the magnet. This effect is caused by the _?_ around the magnet. Its effect is strongest at the two opposite poles of the magnet.
magnetic force
magnetic field
The Earth has a magnetic core of _?_ iron.
solid
liquid
The Earth's geographical poles are its magnetic poles.
True
False
Earth's magnetic _?_ protects life on Earth.
radiation
field
The needle of a compass points to the Earth's geographical _?_ pole.
North
South
Compasses were first used in _?_ .
medieval times
the 20th century
This is a dry compass.
This is a wet compass.
This is a dry compass.
This is a wet compass.
cobalt - iron - magnetite - nickel - steel
The are magnetic and they are metallic.
They are non-magnetic and metallic.
They are non-magnetic and non-metallic.
glass - paper - plastic - rubber - wood
The are magnetic and they are metallic.
They are non-magnetic and metallic.
They are non-magnetic and non-metallic.
aluminum - copper - gold - silver - titanium
The are magnetic and they are metallic.
They are non-magnetic and they are metallic.
They are non-magnetic and they are non-metallic.
Three things we can do to make an electromagnet stronger:
Wrap the coil around a piece of iron, for example, an iron bolt.
Wrap some duct tape around the iron bolt.
Heat up the iron bolt.
Increase the electrical current flowing through the coil.
Add more coils of wire.
A blender converts _?_ .
sound into electricity
electricity into motion
Speakers change _?_ .
electricity into sound
sound into electricity
A microphone converts _?_ .
electricity into sound
sound into electricity
Electricity cannot flow in _?_ circuit.
an open
a closed
An MRI scanner helps to _?_ .
lock car doors
diagnose illnesses
Electromagnets need _?_ to function.
heat
gas
electricity
MAGLEV trains _?_ the metal rails.
do not touch
touch
