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Play with your magnets!
ALL magnets have two poles NORTH seeking pole SOUTH seeking pole
Breaking a magnet produces two magnets! NS NS NNSS
Opposite poles attract and like poles repel
Iron (steel), Cobalt and Nickel
When a magnetic material is close to a magnet, it becomes a magnet itself We say it has induced magnetism N S N S magnet
Hard and Soft Magnetism
Soft Magnetism Pure iron is a soft magnetic material It is easy to magnetise but loses its magnetism easily N S beforeafter Iron nail S N N S Not a magnet N
Hard Magnetism Steel is a hard magnetic material It is harder to magnetise, but keeps its magnetism (it is used to make magnets!) N S beforeafter Steel paper clip N N S Its a magnet! N S SN
Magnetic field I wonder if this is a magnetic field?
Magnetic field Magnets (and electric currents) produce magnetic fields around them. In the magnetic field, another magnet or magnetic material will experience a magnetic force.
Magnetic field lines We can represent the magnetic field around a magnet using field lines.
Magnetic field lines The arrows show the direction a compass needle would point at that point in the field.
Magnetic field lines The closer the field lines are, the stronger the magnetic force felt The arrows show the direction a compass needle would point at that point in the field.
Earths Magnetic Field N S Remember the North of a compass needle points to the geographic north pole (i.e. the geographic North pole is a magnetic south pole!)
Field around a bar magnet
Two bar magnets Strong uniform field
Two bar magnets no field!
Mind-map Mr Porter is now going to put these slides on a loop and youre going to mind-map them!
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Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.
Do now! Do you know the formulae for Wenesday’s Test? D = m/V p = F/A p = ρhg p 1 V 1 = p 2 V 2 (constant temp and fixed mass) p 1 /T 1 = p 1 /T 1 (constant.
Magnetism Can you read through last lessons slide show?
ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.
TP Students to understand the properties of magnets.
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Magnets. Magnetic Force Force around a magnet that is felt before magnets touch.
Lesson 2 – Magnetic Fields Learning Objectives: 1.Recall what a magnetic field is. 2.Recall that the Earth has a magnetic field. 3.Describe the magnetic.
Magnetism Three Properties of Magnets 1. Made of iron and attract materials that contain iron 2. Attract and repel other magnets 3. One part of a magnet.
Magnetism. Example of iron sample under microscope A magnet is an object that can attract other objects containing iron, cobalt, or nickel.
SPH3U: Electricity Intro to Magnetism. Magnetic Poles Every magnet has a north and south pole Like Poles Repel Opposite Poles Attract SNNSNSNS.
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MAGNETISM Section 8.1. Magnetism Magnetism- the properties and interactions of magnets Interaction between two magnets, called magnetic force, increases.
Do Now Given the following objects, a piece of aluminum foil, a nickel, a plastic figure, a piece of wood, a glass vase, and some paper clips, predict.
MAGNETISM. Specification Magnetism and electromagnetism Magnetism understand that magnets repel and attract other magnets and attract magnetic substances.
© Boardworks Ltd of 20 © Boardworks Ltd of 26 KS4 Physics Electromagnetism.
What is magnetism ? The force of attraction or repulsion of a magnetic material due to the arrangement of its atoms, particularly its electrons. The earliest.
Magnetism. Properties of Magnets Magnetic – the ability to exert forces on magnets or other magnetic materials. Magnetic materials are affected by magnets.
Magnetism Unit Notes 1 Grade 10 ST. Magnetic Behaviour After watching the demo, what conclusions can you make about what you saw? _____________________________________.
Bell work Will the following items attract or not attract to a magnet? 1.Aluminum foil 2.Plastic bottle 3.Wooden spoon 4.Glass cup 5.Paper clips 6.Screw.
LEFT CLICK OR PRESS SPACE BAR TO ADVANCE, PRESS P BUTTON TO GO BACK, PRESS ESC BUTTON TO END LEFT CLICK OR PRESS SPACE BAR TO ADVANCE, PRESS P BUTTON.
4.3.1 Magnetic Fields and Electromagnetic Induction The Earth’s Shield.
Magnetism – From the syllabus state the properties of magnets give an account of induced magnetism distinguish between ferrous and nonferrous materials.
INTRODUCTION TO MAGNETISM CHAPTER 16 HTTPS://WWW.YOUTUBE.COM/WATCH?V=AIWBRZ4KNPG.
These poles of a magnet repel. Like poles Poles on a magnet that attract.
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Magnetism ClassAct SRS enabled. In this presentation you will: Explore the concept of magnetism and magnetic fields.
Magnetic Fields and Electromagnetic Induction The Earth’s Shield.
ELECTRICITY & MAGNETISM. MAGNETISM Invisible force of push or pull by an object with this property Wagon does not move; forces are not lined up Wagon.
Magnets. All magnets have two ends called POLES There is a NORTH pole and a SOUTH pole SN.
Magnet Notes –Must contain nickel, cobalt or iron –Magnets have a North Pole and a South Pole –Like poles repel –Opposite poles attract –Objects that are.
Magnets and Magnetism Chapter 6 Section 1. Vocab Magnet- any material that attracts iron or materials containing iron. Magnetic Pole- one of two points,
Copyright © 2012 InteractiveScienceLessons.com Do: Dangled a paper clip near a magnet. See: The magnet attracted the paper clip. What ’ s Happening: Magnetism.
Magnetism Chapter6 1. Magnetism Magnetism was known from long times ago Ancient Greek and Chinese used stones exist in nature that have “magical” attractive.
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