"Electricity and Magnetism"

2. Electricity
and
Magnetism
Part 1

3. Electricity
and
Magnetism
 Electricity and magnetism are two different
phenomena that are present in nature.
 Electricity is the flow of charged particles, and
magnetism is the force of attraction or repulsion
between objects. In the past, scientists were aware
of electricity and magnetism. However, it was not
until the 19th century that they realised there was a
close relationship between these two things.They
also discovered that it was possible to create a
magnetic field using an electrical current.The
interaction of these forces is called
electromagnetism.What are electromagnets?

4. Check out 1
1. Identify the object in the photo on slide 2. What is
it? How does it work?
2. Which of the following objects do you think would
be attracted to a magnet? A gold ring, an iron nail,
a steel pin, a silver spoon, an aluminium pan.
3. When do two magnets repel each other?What do
you need to do to make them attract each other?
4. How can a compass help you if you get lost? Why
does a compass always point north?
5. Where do you we find magnets at home?What are
used for?

5. Check out 2
Analyse and
organise .
Study the different objects in the box.
Which ones are attracted to magnets?
Copy and classify into magnetic objects
and non-magnetic objects in your
notebook.
 a wooden ruler, a tin can, an aluminium can,
iron fillings, a steel key, an oxidised iron nail,
a bone, a sliver ring, nickel coins, a gold bar

6. Challenge11.Benjamin
Franklin´sexperimentsof
electricity.
2. Japan´s Maglev
Train Linimo (How
does it work?)