Magnets are objects that produce magnetic fields and attract iron objects. There are different types of magnets including permanent magnets, temporary magnets, and electromagnets. Magnets have many important uses in technology, medicine, science, music, art, toys, jewelry, and transportation. They are crucial components of devices like speakers, computers, motors, and medical imaging machines. Magnets also have applications in areas like art, toys, scrap sorting, and magnetic levitation transportation. The student learned that magnets play a much more significant role in daily life than previously realized.
a complete dscription about the types uses and properties of metal in details...... a small 7 slide ppt in which all slides are the best from each oher.......... hope will like my presentation
a complete dscription about the types uses and properties of metal in details...... a small 7 slide ppt in which all slides are the best from each oher.......... hope will like my presentation
Topics Included:
• Origin
• Definition and Example
• Type of Magnets
• Type of Materials
• Properties of Magnet
• Methods to make a Magnet
• Magnetic Compass
• Difference between Permanent and Temporary Magnet
• Important Definitions
• Worksheet
Het this is Vedika Agrawal
the topic covers magnetism keeping in mind students of physiotherapy for there subject elecrotherapy.
Well it covers magnet of class 10th and 12th and also college level to some extent.
the ppt includes diagrams for almost everything for better visual understanding.
hope you find it helpfull and elaborative.
Presentation is on explaining concept of magnetism to kids of primary & secondary standards. The PPT is based on magnetism concepts covered in CBSE syllabus.
It helps kids to understand the concept in detail and if its coupled with few practical examples, it will be more fun.
Magnetism. Introduction to Magnetism.
IGCSE comittee slide. I obtained this from Physics IGCSE comittee. Thank you for sharing. If the owner find this, kindly email me at fadhilahalias@gmail.com for aknowledgement.
Topics Included:
• Origin
• Definition and Example
• Type of Magnets
• Type of Materials
• Properties of Magnet
• Methods to make a Magnet
• Magnetic Compass
• Difference between Permanent and Temporary Magnet
• Important Definitions
• Worksheet
Het this is Vedika Agrawal
the topic covers magnetism keeping in mind students of physiotherapy for there subject elecrotherapy.
Well it covers magnet of class 10th and 12th and also college level to some extent.
the ppt includes diagrams for almost everything for better visual understanding.
hope you find it helpfull and elaborative.
Presentation is on explaining concept of magnetism to kids of primary & secondary standards. The PPT is based on magnetism concepts covered in CBSE syllabus.
It helps kids to understand the concept in detail and if its coupled with few practical examples, it will be more fun.
Magnetism. Introduction to Magnetism.
IGCSE comittee slide. I obtained this from Physics IGCSE comittee. Thank you for sharing. If the owner find this, kindly email me at fadhilahalias@gmail.com for aknowledgement.
In 2014 the University of Wolverhampton opened the doors to its state-of-the-art Science Centre. The new building represented a radical change in pedagogy for teaching and learning in Science subjects at Wolverhampton. The capture and broadcasting of video was central to the new teaching philosophy and there were a number of challenges to overcome when delivering a completely new technical and pedagogical ecosystem. Evaluative research suggests that the use of capture technologies to support teaching and learning in the Science Centre has been a success; with students reporting more confidence and better understanding and staff reporting more independent students and an increase in opportunities to facilitate deeper learning. The knowledge developed through the Science Centre project will be used to inform the design of discipline specific capture installations across our campuses, where they will add the most value to the learning experience.
SOME BASIC PRINCIPLES OF MAGNETISM (Autosaved).docxZocelynManingo1
Electric Current and Magnetism
The Nature of Magnetism: Electricity’s Silent Partner
Magnetism is a property of a material that enables to attract or repel other materials. The presence and strength of the material’s magnetic properties can be observed by the effect of the forces of attraction and repulsion on other materials.
What makes magnets?
Magnets are actually created by tiny spinning electrons in an atom. The electrons move about the nucleus and spin like a top, creating a tiny magnetic field.
If electrons are spinning in the same direction there is more magnetism, while electrons spinning in opposite directions cancel out each others’ magnetic fields. Magnetic fields are invisible, we can only see the effects of the magnetic force.
Magnetic Field: The space around a magnet in which a magnetic force is exerted
— The shape of a magnetic field is revealed by magnetic field lines
Directed away from north poles and toward south poles
Magnets have two ends or poles, called north and south poles. At the poles of a magnet, the magnetic field lines are closer together.
The magnetic field lines around horse-shoe and disk magnets are closest together at the magnets’ poles. Unlike poles of magnets attract each other and like poles of magnets repel. Magnetic Poles: A region on a magnet which produces magnetic forces
The poles of a suspended magnet will align themselves to the poles of the Earth
Fundamental Rule: Like poles repel; opposite poles attract
If a force of attraction only is possible between an object and a magnet, then the object interacting with the magnet contains a ferromagnetic substance and is considered naturally magnetic.
If a force of repulsion is only between an object and a magnet, then the object interacting with the magnet may also be a permanent magnet or a temporarily magnetized ferromagnetic material.
Materials which are attracted by a magnet are known as magnetic materials. Iron, cobalt, nickel and many alloys of these metals like steel and alnico are magnetic.
Magnetic materials can be used to make permanent or temporary magnets unlike the non-magnetic materials which cannot.
INDUCED MAGNETISM
The process by which the screws become magnets is called Electric/Magnetic Induction. This same process is the reason why magnets attract non-magnetized magnetic substances such as the screw. The screw becomes an induced magnet with the end nearer the magnet having an opposite polarity to that of the permanent magnet. Hence attraction happens after magnetic induction occurs. The quicker way to know the polarity of a permanent or induced magnet is by the use of a magnetic compass. Compass needle is a small magnet that is free to pivot in a horizontal plane about an axis and that the end of the magnet that points to geographic north is called the north (N) pole. Likewise, the opposite end of the magnet is the south (S) pole.What are magnetic domains?
Magnetic substances like iron, cobalt and nickel
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MAGNETISM and ELECTROMAGNETISM 2012.pptxmarkgrant78
Outlines the electrical principles regarding magnetism and its relation to electromagnetism and also their key role in the function of other electrical devices and equipment.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
Delivering Micro-Credentials in Technical and Vocational Education and TrainingAG2 Design
Explore how micro-credentials are transforming Technical and Vocational Education and Training (TVET) with this comprehensive slide deck. Discover what micro-credentials are, their importance in TVET, the advantages they offer, and the insights from industry experts. Additionally, learn about the top software applications available for creating and managing micro-credentials. This presentation also includes valuable resources and a discussion on the future of these specialised certifications.
For more detailed information on delivering micro-credentials in TVET, visit this https://tvettrainer.com/delivering-micro-credentials-in-tvet/
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Pride Month Slides 2024 David Douglas School District
Role of Magnets
1. Physics Draft 1
Name: Muskan Bagdiya
Topic: Role of magnets in our lives
A magnet is an object that attracts iron objects. This phenomenon is known
as magnetism. It is a force produced by some metals that pulls objects towards
them or pushes them away.
Types of Magnets:
There are various types of magnets depending on their properties. Some of
the most well known are listed below:
Permanent Magnets: These are the most common type of magnets that we
know and interact with in our daily lives. E.g.; The magnets on our
refrigerators. These magnets are permanent in the sense that once they have
been magnetized they retain a certain degree of magnetism. Permanent
magnets are generally made of ferromagnetic material. Such material consists
of atoms and molecules that each have a magnetic field and are positioned
to reinforce each other. There are typically four categories of permanent
magnets: neodymium iron boron (NdFeB), samarium cobalt (SmCo), alnico,
and ceramic or ferrite magnets.
Temporary Magnets: Temporary magnets are those that simply act like
permanent magnets when they are within a strong magnetic field. Unlike
permanent magnets however, they lose their magnetism when the field
disappears. Paperclips, iron nails and other similar items are examples of
temporary magnets. Temporary magnets are used in telephones and electric
motors amongst other things.
Electromagnets: Had it not been for electromagnets we would have been
deprived of many luxuries and necessities in life including computers,
television and telephones. Electromagnets are extremely strong magnets.
They are produced by placing a metal core (usually an iron alloy) inside a coil
of wire carrying an electric current. The electricity in the current produces
a magnetic field. The strength of the magnet is directly proportional to the
strength of the current and the number of coils of wire. Its polarity depends
on the direction of flow of current. While the current flows, the core
behaves like a magnet. However, as soon as the current stops, the core is
demagnetized.
Superconductors: These are the strongest magnets. They don't need a metal
core at all, but are made of coils of wire made from special metal alloys
which become superconductors when cooled to very low temperatures.
2. Uses of magnets:
1. Technology:
Magnetic recording media: VHS tapes contain a reel of magnetic tape. The
information that makes up the video and sound is encoded on the magnetic
coating on the tape. Common audio cassettes also rely on magnetic tape.
Similarly, in computers, floppy disks and hard disks record data on a thin
magnetic coating.
Refrigerator magnets are used to adorn kitchens, as a souvenir, or simply to
hold a note or photo to the refrigerator door.
Common televisions and computer monitors: TV and computer screens
containing a cathode ray tube employ an electromagnet to guide electrons to
the screen. Plasma screens and LCDs use different technologies.
Speakers and microphones: Most speakers employ a permanent magnet and a
current-carrying coil to convert electric energy (the signal) into mechanical
energy (movement that creates the sound). The coil is wrapped around a
bobbin attached to the speaker cone and carries the signal as changing
current that interacts with the field of the permanent magnet. The voice
coil feels a magnetic force and in response, moves the cone and pressurizes
the neighbouring air, thus generating sound. Dynamic microphones employ
the same concept, but in reverse. A microphone has a diaphragm or
membrane attached to a coil of wire. The coil rests inside a specially shaped
magnet. When sound vibrates the membrane, the coil is vibrated as well. As
the coil moves through the magnetic field, a voltage is induced across the
coil. This voltage drives a current in the wire that is characteristic of the
original sound.
Electric motors and generators: Some electric motors rely upon a
combination of an electromagnet and a permanent magnet, and, much like
loudspeakers; they convert electric energy into mechanical energy. A
generator is the reverse: it converts mechanical energy into electric energy
by moving a conductor through a magnetic field.
Credit, debit, and ATM cards: All of these cards have a magnetic strip on
one side. This strip encodes the information to contact an individual's
financial institution and connect with their account(s).
2. Medical:
Medicine: Hospitals use magnetic resonance imaging to spot problems in a
patient's organs without invasive surgery.
3. Science:
Chemistry: Chemists use nuclear magnetic resonance to characterize
synthesized compounds.
3. Compasses: A compass (or mariner's compass) is a magnetized pointer free to
align itself with a magnetic field, most commonly Earth's magnetic field.
Science projects: Many topic questions are based on magnets, including the
repulsion of current-carrying wires, the effect of temperature, and motors
involving magnets.
4. Music:
Electric guitars use magnetic pickups to transducer the vibration of guitar
strings into electric current that can then be amplified. This is different
from the principle behind the speaker and dynamic microphone because the
vibrations are sensed directly by the magnet, and a diaphragm is not
employed. The Hammond organ used a similar principle, with rotating tone
wheels instead of strings.
Chucks are used in the metalworking field to hold objects. Magnets are also
used in other types of fastening devices, such as the magnetic base, the
magnetic clamp and the refrigerator magnet.
5. Art:
Art: Vinyl magnet sheets may be attached to paintings, photographs, and
other ornamental articles, allowing them to be attached to refrigerators and
other metal surfaces. Objects and paint can be applied directly to the
magnet surface to create collage pieces of art. Magnetic art is portable,
inexpensive and easy to create. Vinyl magnetic art is not for the refrigerator
anymore. Colourful metal magnetic boards, strips, doors, microwave ovens,
dishwashers, cars, metal I beams, and any metal surface can be receptive of
magnetic vinyl art. Being a relatively new media for art, the creative uses for
this material is just beginning.
6. Toys:
Toys: Given their ability to counteract the force of gravity at close range,
magnets are often employed in children's toys, such as the Magnet Space
Wheel and Levitron, to amusing effect.
7. Jewellery:
Magnets can be used to make jewellery. Necklaces and bracelets can have a
magnetic clasp, or may be constructed entirely from a linked series of
magnets and ferrous beads.
8. Transport:
Magnetic levitation transport, or maglev, is a form of transportation that
suspends guides and propels vehicles (especially trains) through
4. electromagnetic force. The maximum recorded speed of a maglev train is 581
kilometres per hour (361 mph).
9. Other Uses:
Magnets can pick up magnetic items (iron nails, staples, tacks, paper clips)
that are either too small, too hard to reach, or too thin for fingers to hold.
Some screwdrivers are magnetized for this purpose.
Magnets can be used in scrap and salvage operations to separate magnetic
metals (iron, cobalt, and nickel) from non-magnetic metals (aluminum, nonferrous alloys, etc.). The same idea can be used in the so-called "magnet
test", in which an auto body is inspected with a magnet to detect areas
repaired using fibreglass or plastic putty.
Magnets may be used to serve as a fail-safe device for some cable
connections. For example, the power cords of some laptops are magnetic to
prevent accidental damage to the port when tripped over. The MagSafe
power connection to the Apple MacBook is one such example.
Reflection on Magnets:
I think magnets are really very important. Before doing this essay, I thought
magnets are used rarely but we use it almost every day. I understood the
importance of magnets in our life. If magnets weren’t there, our life would be
totally different.
Bibliography:
My own knowledge
My own understanding
I Discover: A Textbook for ICSE Physics 6
http://www.howmagnetswork.com
http://www.thomasnet.com
http://en.wikipedia.org