This document discusses factors that affect the strength of electromagnets. It explains that an electromagnet consists of an iron core, insulated wire wound into a coil, and a power source. The document states that the strength of an electromagnet depends on the number of wire turns in the coil, the amount of electric current passing through the wire, and the type of iron in the core. It also notes that an electromagnet is only magnetic when electric current is flowing through it, unlike a permanent magnet.

1. Science 5
Quarter 3 – Module 6
Factors Affecting the
Strength
of an Electromagnet

3. An electric cane has an
electromagnet that attracts
metal scraps like car. This
helps us to sort metallic.

4. Magnets are composed of
iron that attract other
iron-made objects and
other materials that have
like composition.
Combined electricity and
magnet can produce
electromagnet

5. A magnet is a material that
can attract metallic objects
such as steel, nickel, cobalt,
and most especially, iron. This
property of magnets can be
described as magnetism.
This attraction happens
because magnets have two
ends that have opposite
characteristics – the North and
South poles.

6. What is an Electromagnet?
An electromagnet is a type of magnet
in which an electric current produces
the magnetic field. Electromagnets
usually consist of wire wounds into a
coil.Professor Hans Christian Oersted
coined the term electromagnetism
in1820.
It refers to the ability of a wire to
carry electric current to produce a
magnetic current.

7. An electromagnet is temporary
and is called an artificial magnet. It is
a magnet that is only magnetic when
an electric current is flowing through
it. If the flow of the current is cut off,
the property of magnetism stops.

8. Parts of an Electromagnet
three main parts:
 an iron core,
 insulated wire
 a power source.

10. 1. Iron core. Its purpose is
to concentrate the magnetic
flux produced by the current
in the area outside the wires.

11. 2. Wire/ Insulated wire.
The wire serves as the passage of the electric
current creating a magnetic field. The
number of turns of wire represents the power
of the electromagnet. The cable and wires
need to be insulated as it prevents the
current from coming into contact with other
conductors.

12. 3. Power source.
It serves as the source of
electricity that flows to the wire to
create a magnetic field. The amount
of current also affects the strength
of the electromagnet.

13. Write True if the sentence is correct and False if it is
not.
_____________1. In magnets,
similar poles attract.
_____________2. Electromagnets
can't lift heavy objects.

14. Write True if the sentence is correct and False if it is
not.
_________3. The strength of an
electromagnet is permanent.
_________4. A magnet is a material
that pulls/attracts metallic objects.
_________5. An
electromagnet is a
temporary magnet.