Magnetism

Magnetism

by nabila zulkifli

​Learning outcomes

​By the end of the lesson, students should be able to:

1. ​Identify the properties of a magnet and magnetic materials

2. Understand how magnetic poles work

3. Recognise magnetic field patterns

4. Know how to make an electromagnet and what makes it stronger

5. Explain magnetic currents and magnetic fields

​Magnetic field

​S-in N-out

​Electromagnet

How to make it stronger​

• ​increase current

• increase coil

• ​iron core

https://youtu.be/yXCeuSiTOug​

Multiple Select

What is a magnet?

• a piece of rubber that draws plastic

• a piece of material or rock that attracts other metals

• a pole that attracts trash

• a push or a pull

Multiple Select

Name the poles on a magnet

• North Pole & East Pole

• East Pole & West Pole

• South Pole & West Pole

• North Pole & South Pole

Multiple Select

A _________________________ is the invisible force that surrounds a magnet.

• bar magnet

• a gravitational force

• a magnetic field

• gravity

Multiple Select

____________________ poles repel

• like

• north

• south

• unlike

Multiple Select

When the north pole of one magnet is put near the south pole of another magnet they

• repel

• flip

• fall

• attract

Multiple Select

A magnet pushes or pulls objects made of

• wood

• iron

• plastic

• cooper

Multiple Choice

The center of a bar magnet is the strongest

• True
• False

Multiple Choice

The lines on this image are called...

• magnetic field lines
• iron fillings
• graphite lines
• none of these

Multiple Choice

This type of magnet is DIFFICULT to magnetize

• temporary
• permanent

Multiple Choice

Electricity can be used to create a magnet

• True
• False

Multiple Choice

A _________ is a device that produces magnetism by spinning a coil of wire around a nail.

• Generator
• Electromagnet
• Battery
• Galvonometer

Multiple Choice

You can make an electromagnet stronger by...

• increasing the current through the wire
• make the iron core bigger
• increase the number of loops around the core
• All of these