6 Magnetism – Part B “Magnets and Electromagnets””
Syllabus Aims…
6.2 know that magnets repel and attract other magnets and attract magnetic substances.
6.3 describe the properties of magnetically hard and soft materials
6.4 understand the term ‘magnetic field line’
6.5 know that magnetism is induced in some materials when they are placed in a magnetic field
6.6 practical: investigate the magnetic field pattern for a permanent bar magnet and that between two bar magnets
6.7 describe how to use two permanent magnets to produce a uniform magnetic field pattern.
6.11P know that there is a force on a charged particle when it moves in a magnetic field as long as its motion is not parallel to the field (Triple)
Resources…
Use this PowerPoint to work through the ideas…6B Magnetism 1
Use this KS3 Page of ideas to help with the basic definitions if you are a little rusty.
Plotting Magnetic Field Lines GCSE Physics Required Practical
Plot the magnetic field lines of a bar magnet using a plotting compass. Magnetic field lines do not ever cross, they are continuous, and they go from North to South. ...The closer these lines are, the stronger the magnetic field it represents.
Music credit:
Song: Dipcrusher - Islands (Vlog No Copyright Music)
Music provided by Vlog No Copyright Music.
Video Link: https://youtu.be/CpFneq3zIt4
Music creditShow MorePlotting Magnetic Field Lines GCSE Physics Required Practical
Plot the magnetic field lines of a bar magnet using a plotting compass. Magnetic field lines do not ever cross, they are continuous, and they go from North to South. ...The closer these lines are, the stronger the magnetic field it represents.
Music credit:
Song: Dipcrusher - Islands (Vlog No Copyright Music)
Music provided by Vlog No Copyright Music.
Video Link: https://youtu.be/CpFneq3zIt4
Music creditShow More How The Northern Lights Are Created VIDEO
How to Make an Electromagnet - Science Experiment
MAGNETS: How Do They Work?
Q9 6B Magnetic Fields June 2018 iGCSE Physics
This is a quick video walkthrough of an Edexcel exam question. It is designed so you can look at questions which relate to questions from specific parts of the course.
It ...is taken from a real paper and I have used a real mark scheme which I have adapted for on-screen use. If you listen carefully it will give you a really good idea of what an examiner is looking for.Show More Christmas Candle Flame in Magnetic Field
This quite an interesting effect and asked for by lots of youtubers when I did my candle in an electrical field video. I have made sure the flame is as ...clear as can be!
If we take a strong magnetic field i.e. from huge horseshoe magnet OR neodymium magnet we can just see a slight difference in the flame. We need to try and avoid any breeze caused by me talking as well!
The magnetic field enhances then combustion process between fuels, which are a diamagnetic material and the oxygen which is paramagnetic material.
It is found that a free convection heat transfer from candle flame may be significantly affected by the presence of a magnetic field. It can increase the flame height and luminosity and brightness of candle flame.
The magnetic field increases the oxygen concentration around the candle flame due to the oxygen being a paramagnetic material. Also the magnetic field enhances the buoyancy force of the candle flame. This means that there is a more complete combustion in the presence of the magnetic field.
However, it really is very hard to see unless you have a huge field, I think I needed much bigger magnet to see more.
A compound is diamagnetic if all its electrons are paired and paramagnetic if any of its electrons are unpaired.
My resource for the magnetism ideas is here, so worth a check as I am on my limit of my explaining powers and equipment.
https://www.researchgate.net/publication/335465123_Effect_Of_Electromagnetic_Field_On_Combustion_Of_Candle_FlameShow More Fleming's Left Hand Rule - 1Hz Standing Wave - Magnetic Motor effect - 50 Hertz
This is such a cool example to show Flemings left hand rule. (Motors drive on the left - UK)
You can do it with a power pack at 50Hz and two ...magnets of opposing polarity or you can keep them the same, or do it with only one, but it is not as much fun.
Start at 1Hz and then listen, then turn up to 2Hz and then up to 50Hz.Show More Cleaning with a Neodymium Magnet
Neodymium iron boron “neo” magnets (Nd2Fe14B) magnets offer the strongest fields for size of any permanent magnet material on the market today. The crystal that is formed is very easy ...to magnetise in one direction and has lots of unpaired electrons in the complex structure (4 in the Nd and 3 in the Fe). This is the root of the magnetism. #NdFe
This super large magnet has a N-S on the larger face of the magnet.
Amazing for cleaning an oil of magnetic materials!
Magnet applications include high performance motors, brushless DC motors, children's toys and sensors They are 18x by volume or 12x by mass stronger than a simple ferrite magnet so really make a difference.Show More Neo Magnet and Special K #shorts
Neodymium iron boron “neo” magnets (Nd2Fe14B) magnets offer the strongest fields for size of any permanent magnet material on the market today. The crystal that is formed is very easy ...to magnetise in one direction and has lots of unpaired electrons in the complex structure (4 in the Nd and 3 in the Fe). This is the root of the magnetism.
NdFeB magnet applications include high performance motors, brushless DC motors, children's toys and sensors
They are 18x by volume or 12x by mass stronger than a simple ferrite magnet so really make a difference.
The special k flake has some added iron and this causes this effect!
However, note how strong the surface tension is on the glass dish which means you have to have it floating in the middle. It will not work with a standard magnet!Show More Magnetic Cleaning? Neodymium - 900th Video on My Channel! #shorts
Neodymium iron boron “neo” magnets (Nd2Fe14B) magnets offer the strongest fields for size of any permanent magnet material on the market today. The crystal that is formed is very easy ...to magnetise in one direction and has lots of unpaired electrons in the complex structure (4 in the Nd and 3 in the Fe). This is the root of the magnetism. #NdFe
This super large magnet has a N-S on the larger face of the magnet.
Amazing for cleaning an oil of magnetic materials!
Magnet applications include high performance motors, brushless DC motors, children's toys and sensors They are 18x by volume or 12x by mass stronger than a simple ferrite magnet so really make a difference.
#shortsShow More Newton's 1st and 2nd Law - Neodymium Magnet and Special K
Neodymium iron boron “neo” magnets (Nd2Fe14B) magnets offer the strongest fields for size of any permanent magnet material on the market today. The crystal that is formed is very easy ...to magnetise in one direction and has lots of unpaired electrons in the complex structure (4 in the Nd and 3 in the Fe). This is the root of the magnetism.
NdFeB magnet applications include high performance motors, brushless DC motors, children's toys and sensors
They are 18x by volume or 12x by mass stronger than a simple ferrite magnet so really make a difference.
The special k flake has some added iron and this causes this effect!
However, note how strong the surface tension is on the glass dish which means you have to have it floating in the middle. It will not work with a standard magnet!Show More Solenoid and Magnetic Fields
Applications of a solenoid on a car door!
3D Magnetic Field with Circular and Torpedo Magnets
Fields are so cool and this device with a couple of extra circular magnets with the field coming out the face are very cool to show the field lines. It ...also shows actually how uniform the field lines are as well.
The torpedo is held by the filings and induced magnetic field balances the gravitational pull down as well.Show More Permanent link to this article: https://www.animatedscience.co.uk/igcse-physics-introduction-and-resources/6-magnetism-part-a-units/6-magnetism-part-b-magnets-electromagnets
