Electromagnetism

WELCOME BACK TO OUR SCIENCE CLASS! 

Open Ended

What are we talking about today?

Agenda

1-Exploring key concepts-taking notes. 

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2- A view on electromagnetism: understanding questions.

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3- Closure: answer true or false. 

Exploring key concepts

Take notes

Magnetism

It refers to physical phenomena caused by the force exerted by magnets; objects that create fields that attract or repel other objects.

Attraction and repulsion

Magnets have two poles: a north pole and a south pole. Similar poles repel each other while different poles attract, causing the phenomena known as attraction and repulsion.

Multiple Choice

What are magnets made of?

• iron

• plastic

• copper

• magnetite

Magnetic field

The area in which the magnet exerts force on materials like iron, silver, copper, steel and other magnetic materials.

Multiple Choice

There is no acting force in a magnetic field.

• True.

• False.

Electromagnetism

It refers to the study of the magnetic field generated by electric current. A magnetic field is an area around a magnet where a magnetic force always works between two poles of charge.

Multiple Choice

What does electromagnetism study?

• the magnetic field generated by electric current.

• attraction and repulsion of some materials.

• conducting and insulating materials.

Multiple Choice

Electromagnetism studies the magnetic field generated by electric current but the opposite can also happen.

• True

• False

Magnets

are objects made of elements found in nature, especially one component which is called magnetite.

Multiple Choice

Magnets have two poles: north and south.

• True.

• False.

Earth´s magnetic field

Earth also has a magnetic field caused by the liquid iron, which is constantly moving in its core.

Multiple Choice

What generates the magnetic field in the earth?

• The nuclear force

• The electromagnetic force

• The liquid iron found in its core

Multiple Choice

The earth has a magnetic field caused by the liquid iron found in its core.

• True.

• False.

Magnetism generates electric current

It has been said that electric current generates magnetism but the opposite can also happen. Magnets can be used to generate electric current through the use of a generator; a device that can create electric current out of a magnet.

Multiple Choice

Electromagnetism examples are found in Tvs, computers, cellphones and other devices.

• True

• False

​Check true or false

Multiple Choice

A magnetic field can generate electric current and viceversa. 

• True

• False

Multiple Choice

Similar poles attract each other. 

• True

• False

Multiple Choice

Different poles attract each other. 

• True

• False

Open Ended

What is electromagnetism?

Open Ended

What was the easiest part of today´s class?

Open Ended

What did you find most difficult?