Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

23
Play with your magnets!

Transcript of Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Page 1: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Play with your magnets!

Page 2: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

ALL magnets have two poles

NORTH seeking pole

SOUTH seeking pole

Page 3: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Breaking a magnet produces two magnets!

N S

N S

NN SS

Page 4: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Opposites attract!

Page 5: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Opposite poles attract and like poles repel

Page 6: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Magnetic materials

Page 7: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Magnetic materials

Iron (steel), Cobalt and Nickel

Page 8: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Magnetic induction

Page 9: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Magnetic induction

When a magnetic material is close to a magnet, it becomes a magnet itself

We say it has induced magnetism

NS

NSmagnet

Page 10: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Hard and Soft Magnetism

Page 11: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Soft Magnetism

Pure iron is a soft magnetic material

It is easy to magnetise but loses its magnetism easily

NS

before after

Iron nail

SN

NS

Not a magnet

N

Page 12: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Hard Magnetism

Steel is a hard magnetic material

It is harder to magnetise, but keeps its magnetism (it is used to make magnets!)

NS

before after

Steel paper clip

NNS

It’s a magnet!

N

S

S N

Page 13: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Magnetic field

I wonder if this is a magnetic

field?

Page 14: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

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.

Page 15: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Magnetic field lines

We can represent the magnetic field around a magnet using field lines.

Page 16: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Magnetic field lines

The arrows show the direction a compass needle would point at that point in the field.

Page 17: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

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.

Page 18: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Earth’s 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!)

Page 19: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Field around a bar magnet

Page 20: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Two bar magnets

Strong uniform field

Page 21: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Two bar magnets

no field!

Page 22: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

That’s it!

Page 23: Play with your magnets!. ALL magnets have two poles NORTH seeking pole SOUTH seeking pole.

Mind-map

Mr Porter is now going to put these slides on a loop and you’re going to mind-map them!


GSTF International Journal of Engineering Technology (JET ... · magnetic piston engine further referred to as GOPI engine, ... magnets, the pole strength ... hope for power industry

GSTF International Journal of Engineering Technology (JET ... · magnetic piston engine further referred to as GOPI engine, ... magnets, the pole strength ... hope for power industry

Loudspeaker magnets - china magnets source material limited

Loudspeaker magnets - china magnets source material limited

Magnetic Fields. Properties of Magnets Polarized- has two ends (north-seeking and south-seeking) Can cause other materials to become temporarily polarized.

Magnetic Fields. Properties of Magnets Polarized- has two ends (north-seeking and south-seeking) Can cause other materials to become temporarily polarized.

Crest/trough and front/back asymmetric waves in wave ......ron (NdÐFeÐB) permanent magnets, interspersed with soft iron pole pieces mounted on a threaded aluminum shaft. 21 The magnets

Crest/trough and front/back asymmetric waves in wave ......ron (NdÐFeÐB) permanent magnets, interspersed with soft iron pole pieces mounted on a threaded aluminum shaft. 21 The magnets

ERIEZ Lifting Magnets - Vision Solutions · 2018-02-12 · Lifting Magnets Eriez Bi-Polar Magnets, with a wide range of optional pole-plate configurations, are ideally suited for

ERIEZ Lifting Magnets - Vision Solutions · 2018-02-12 · Lifting Magnets Eriez Bi-Polar Magnets, with a wide range of optional pole-plate configurations, are ideally suited for

content.schoolinsites.com · Web viewEach magnet will have a north pole and a south pole. Depending on how you position to magnets, they will attract one another or repel one another.

content.schoolinsites.com · Web viewEach magnet will have a north pole and a south pole. Depending on how you position to magnets, they will attract one another or repel one another.

Magnets. Section 1: Magnets Magnets and magnetism.

Magnets. Section 1: Magnets Magnets and magnetism.

NdFeB Magnets / Neodymium Iron Boron Magnets · PDF fileNdFeB Magnets / Neodymium Iron Boron Magnets Datasheet NdFeB magnets are also know as Neo, Neodymium Iron Boron, NdBFe,

NdFeB Magnets / Neodymium Iron Boron Magnets · PDF fileNdFeB Magnets / Neodymium Iron Boron Magnets Datasheet NdFeB magnets are also know as Neo, Neodymium Iron Boron, NdBFe,

Cool Magnets By Akeilah Harmon. Magnets Magnets are the best. Magnets can pull things. Magnets can pull under the water.

Cool Magnets By Akeilah Harmon. Magnets Magnets are the best. Magnets can pull things. Magnets can pull under the water.

Oracabessa High School · Web viewMagnetic field lines spread out from one pole, curve around the magnet, and return to the other pole. When the magnetic fields of two or more magnets

Oracabessa High School · Web viewMagnetic field lines spread out from one pole, curve around the magnet, and return to the other pole. When the magnetic fields of two or more magnets

Electro Permanent Lifting Magnet eng_04_2017.pdf · • For lifting magnets, type 5180N-25/… and 5180N-50/… the pole plate can be ordered optionally. • For lifting magnets,

Electro Permanent Lifting Magnet eng_04_2017.pdf · • For lifting magnets, type 5180N-25/… and 5180N-50/… the pole plate can be ordered optionally. • For lifting magnets,

Magnetism Web viewMagnetism All magnets have two poles: The North pole and the South pole. They are called so because if you hang a magnet by a thread, it will rotate so that the two

Magnetism Web viewMagnetism All magnets have two poles: The North pole and the South pole. They are called so because if you hang a magnet by a thread, it will rotate so that the two

Magnets and Magnetic Fields Magnets Magnets attract iron-containing objects. Magnets have two distinct poles called the north pole and the south pole.

Magnets and Magnetic Fields Magnets Magnets attract iron-containing objects. Magnets have two distinct poles called the north pole and the south pole.

Drawing Magnetic Field Lines - National MagLab · Magnets have two poles; the fi eld lines spread out from the north pole and circle back around to the south pole. In this activity,

Drawing Magnetic Field Lines - National MagLab · Magnets have two poles; the fi eld lines spread out from the north pole and circle back around to the south pole. In this activity,

Magnetic Circus for 2 nd grade 6 Demonstrations for 2 nd Grade Students Find the pole Levitating magnets Magnetic maze Fishing with magnets Floating Magnet.

Magnetic Circus for 2 nd grade 6 Demonstrations for 2 nd Grade Students Find the pole Levitating magnets Magnetic maze Fishing with magnets Floating Magnet.

Magnetism · magnetic pole of the compass needle is attracted to the south magnetic pole of the earth. 4–2 Permanent Magnets Permanent magnets are magnets that do not require any

Magnetism · magnetic pole of the compass needle is attracted to the south magnetic pole of the earth. 4–2 Permanent Magnets Permanent magnets are magnets that do not require any

Alnico Magnets Datasheet - eclipsemagnetics.com · Alnico Magnets Datasheet Alnico magnets have the best temperature coefficients of any magnet material. Alnico magnets should be

Alnico Magnets Datasheet - eclipsemagnetics.com · Alnico Magnets Datasheet Alnico magnets have the best temperature coefficients of any magnet material. Alnico magnets should be

Neodymium Magnet Catalog · NdFeB Edition: 3.2014 NdFeB Disc magnets Disc magnets self adhesiv Diametrically magnetized magnets Barmagnets Cubes Ring magnets Ring magnets with sinking

Neodymium Magnet Catalog · NdFeB Edition: 3.2014 NdFeB Disc magnets Disc magnets self adhesiv Diametrically magnetized magnets Barmagnets Cubes Ring magnets Ring magnets with sinking

Presentation by Doug Hansen & Carmelina Coleman. Driving Questions Does the North Pole really mean the north pulls? Why do farmers have cows eat magnets?

Presentation by Doug Hansen & Carmelina Coleman. Driving Questions Does the North Pole really mean the north pulls? Why do farmers have cows eat magnets?

Abstract Calculations of Harmonics of Quadrupole Magnets Rybitskaya Tatyana, Budker Institute of Nuclear Physics, Russia Design of pole profile and chamfers.

Abstract Calculations of Harmonics of Quadrupole Magnets Rybitskaya Tatyana, Budker Institute of Nuclear Physics, Russia Design of pole profile and chamfers.