Formwork is the term given to either temporary or permanent molds into which concrete or similar materials are poured. In the context of concrete construction, the falsework supports the shuttering moulds.
Formwork and concrete form types
Formwork comes in several types:
Traditional timber formwork. The formwork is built on site out of timber and plywood or moisture-resistant particleboard. It is easy to produce but time-consuming for larger structures, and the plywood facing has a relatively short lifespan. It is still used extensively where the labour costs are lower than the costs for procuring reusable formwork. It is also the most flexible type of formwork, so even where other systems are in use, complicated sections may use it.
Engineered Formwork System. This formwork is built out of prefabricated modules with a metal frame (usually steel or aluminium) and covered on the application (concrete) side with material having the wanted surface structure (steel, aluminum, timber, etc.). The two major advantages of formwork systems, compared to traditional timber formwork, are speed of construction (modular systems pin, clip, or screw together quickly) and lower life-cycle costs (barring major force, the frame is almost indestructible, while the covering if made of wood; may have to be replaced after a few - or a few dozen - uses, but if the covering is made with steel or aluminium the form can achieve up to two thousand uses depending on care and the applications).
In academic discussions of organized religion, the term form is sometimes used to describe prescriptions or norms on religious practice.
Christian forms
Forms in Christianity are mostly familiarly dictates of church authority or tradition (e.g. church government, liturgy, doctrine). However, the term is used by some authors to refer to a broader category that includes other patterns of religious practice.
Most notably, Christian scholar D. G. Hart uses this term to compare and contrast the practices of evangelicalProtestants and what he calls "confessional Protestants" (for example Anglicans and most Lutherans). He argues that the confessionals follow forms that are dictated by church authority or tradition, and calls these forms churchly forms. On the other hand, noting the resistance to such central authority and tradition among evangelicals, he labels the forms of these denominations parachurchly forms, as they are often dictated by parachurch organizations and other influences beyond the direct control of any particular church.
Magnetism | The Dr. Binocs Show | Educational Videos For Kids
Learn about Magnetism with Dr. Binocs.
Hey kids, have you ever wondered how do magnets get attracted to each other? Here's Dr. Binocs with Ms. Magnet to teach you more about magnets and magnetism.
Share on Facebook - https://goo.gl/XGAOy7
Tweet about this - https://goo.gl/u7584l
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Like our Facebook page: https://www.facebook.com/peekabootv
Voice-Over Artist: Joseph D'Souza
Script Writer: Sreejoni Nag
Background Score: Agnel Roman
Sound Engineer: Mayur Bakshi
Animation: Qanka Animation Studio
Creative Team (Rajshri): Alisha Baghel, Sreejoni Nag
Producer: Rajjat A. Barjatya
Copyrights and Publishing: Rajshri Entertainment Privat...
Magnetism: Let's learn about magnets! A magnet has 2 poles: North pole and South pole. Magnets have a special property to attract materials such as iron, steel, nickel and cobalt. Magnets can be of different shapes: bar magnet, horse shoe magnet, disc magnet. Properties of a magnetic field and magnetic field lines are discussed. We also look at a magnetic compass and the Earth's magnetic field.
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published: 22 Jul 2019
Magnetism: Crash Course Physics #32
You’re probably familiar with the basics of magnets already: They have a north pole and a south pole. Two of the same pole will repel each other, while opposites attract. Only certain materials, especially those that contain iron, can be magnets. And there’s a magnetic field around Earth, which is why you can use a compass to figure out which way is north. In this episode of Crash Course Physics, Shini takes us into the world of magnetism!
--
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
--
Want to find Crash Course elsewhere on the internet?
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published: 01 Dec 2016
Magnetic Force and Magnetic Field | Don't Memorise
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📅🆓NEET Rank & College Predictor 2024: https://infinitylearn.com/neet-rank-predictor?utm_source=YouTube&utm_medium=NEETYT&utm_campaign=LIVE An Iron Needle sticks to the Magnet when brought near it. But why only when it's near the Magnet? Why not from a distance very far away? Well it depends on the Strength of the Magnetic Field! To know what a Magnetic Field is, watch the entire video!
To access all videos related to Fun with Magnets, enroll in our full course now:
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published: 22 Oct 2018
Is it magnetic or non-magnetic?
#magnets #force #ngscience
Predict and test which objects are made of magnetic materials and which are made of non-magnetic materials. Head to ngscence.com for a range of related resources for use in the classroom or at home.
Non-contact Forces – Magnetic Force
Place an iron nail on a table. Slowly move a magnet towards the nail. What do you notice?
A magnet is an object with magnetic force. Magnetic force occurs in an object due to the motion of electrically-charged particles. As you observed when you moved the magnet near the iron nail, magnetic force can act at a distance. It is a non-contact force. It can act through solids, liquids and gases.
Magnetic force can attract objects made of certain metals such as iron and nickel. Magnetic force cannot attract objects made of plastic, woo...
Magnetism.
A magnet is an object or device that produces a magnetic field.
Magnet attracts objects made of nickel, iron and cobalt.
A magnet has 2 poles, the North Pole and the South Pole.
Opposite poles of two magnets always attract each other.
Like poles of two magnets always repel each other.
The Earth also behaves like a magnet.
South pole of the Earth's magnet is in the geographical North.
North Pole of the Earth's magnet is in the geographical South.
A freely suspended magnet always rests in the North South direction. This is because opposite poles attract each other.
published: 30 Apr 2015
Magnetism, Magnetic Field Force, Right Hand Rule, Ampere's Law, Torque, Solenoid, Physics Problems
This physics video tutorial focuses on topics related to magnetism such as magnetic fields & force. It explains how to use the right hand rule to determine the direction of the magnetic force on a moving charge particle and how to use ampere's law to derive the formula of a solenoid. This video contains plenty of examples and practice problems.
Magnetic Force on a Current Carrying Wire:
https://www.youtube.com/watch?v=nv28Cp-ILJ0
Magnetic Force on a Moving Charge:
https://www.youtube.com/watch?v=7MBawzone30
The Homopolar Motor:
https://www.youtube.com/watch?v=6Oj4qvCR6ow
The Lorentz Force:
https://www.youtube.com/watch?v=6ThH8IpsqAA
Magnetic Field of a Current Carrying Wire:
https://www.youtube.com/watch?v=wZlHLHnZSRg
___________________________________
Magnetic Sensors - The Re...
Learn about Magnetism with Dr. Binocs.
Hey kids, have you ever wondered how do magnets get attracted to each other? Here's Dr. Binocs with Ms. Magnet to teach ...
Learn about Magnetism with Dr. Binocs.
Hey kids, have you ever wondered how do magnets get attracted to each other? Here's Dr. Binocs with Ms. Magnet to teach you more about magnets and magnetism.
Share on Facebook - https://goo.gl/XGAOy7
Tweet about this - https://goo.gl/u7584l
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Voice-Over Artist: Joseph D'Souza
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Producer: Rajjat A. Barjatya
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All rights reserved.
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Learn about Magnetism with Dr. Binocs.
Hey kids, have you ever wondered how do magnets get attracted to each other? Here's Dr. Binocs with Ms. Magnet to teach you more about magnets and magnetism.
Share on Facebook - https://goo.gl/XGAOy7
Tweet about this - https://goo.gl/u7584l
Share on G+ - https://goo.gl/VDiArb
To enjoy learning with Dr. Binocs, subscribe & stay tuned:
http://www.youtube.com/subscription_center?add_user=peekaboo
Like our Facebook page: https://www.facebook.com/peekabootv
Voice-Over Artist: Joseph D'Souza
Script Writer: Sreejoni Nag
Background Score: Agnel Roman
Sound Engineer: Mayur Bakshi
Animation: Qanka Animation Studio
Creative Team (Rajshri): Alisha Baghel, Sreejoni Nag
Producer: Rajjat A. Barjatya
Copyrights and Publishing: Rajshri Entertainment Private Limited
All rights reserved.
SUBSCRIBE to Peekaboo Kidz:http://bit.ly/SubscribeTo-Peekabookidz
Catch Dr.Binocs At - https://goo.gl/SXhLmc
To Watch More Popular Nursery Rhymes Go To - https://goo.gl/CV0Xoo
To Watch Alphabet Rhymes Go To - https://goo.gl/qmIRLv
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Magnetism: Let's learn about magnets! A magnet has 2 poles: North pole and South pole. Magnets have a special property to attract materials such as iron, steel,...
Magnetism: Let's learn about magnets! A magnet has 2 poles: North pole and South pole. Magnets have a special property to attract materials such as iron, steel, nickel and cobalt. Magnets can be of different shapes: bar magnet, horse shoe magnet, disc magnet. Properties of a magnetic field and magnetic field lines are discussed. We also look at a magnetic compass and the Earth's magnetic field.
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At Manocha Academy, learning Science and Math is Easy! The school coursework is explained with simple examples that you experience every day! Yes, Science & Math is all around you! Let's learn every day from everyday life!
Magnetism: Let's learn about magnets! A magnet has 2 poles: North pole and South pole. Magnets have a special property to attract materials such as iron, steel, nickel and cobalt. Magnets can be of different shapes: bar magnet, horse shoe magnet, disc magnet. Properties of a magnetic field and magnetic field lines are discussed. We also look at a magnetic compass and the Earth's magnetic field.
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At Manocha Academy, learning Science and Math is Easy! The school coursework is explained with simple examples that you experience every day! Yes, Science & Math is all around you! Let's learn every day from everyday life!
You’re probably familiar with the basics of magnets already: They have a north pole and a south pole. Two of the same pole will repel each other, while opposite...
You’re probably familiar with the basics of magnets already: They have a north pole and a south pole. Two of the same pole will repel each other, while opposites attract. Only certain materials, especially those that contain iron, can be magnets. And there’s a magnetic field around Earth, which is why you can use a compass to figure out which way is north. In this episode of Crash Course Physics, Shini takes us into the world of magnetism!
--
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
--
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashC...
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You’re probably familiar with the basics of magnets already: They have a north pole and a south pole. Two of the same pole will repel each other, while opposites attract. Only certain materials, especially those that contain iron, can be magnets. And there’s a magnetic field around Earth, which is why you can use a compass to figure out which way is north. In this episode of Crash Course Physics, Shini takes us into the world of magnetism!
--
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
--
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashC...
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support CrashCourse on Patreon: http://www.patreon.com/crashcourse
CC Kids: http://www.youtube.com/crashcoursekids
🎯NEET 2024 Paper Solutions with NEET Answer Key: https://www.youtube.com/watch?v=fwXYZUBp4m0&list=PLmdFyQYShrjc4OSwBsTiCoyPgl0TJTgon&index=1
📅🆓NEET Rank & Colle...
🎯NEET 2024 Paper Solutions with NEET Answer Key: https://www.youtube.com/watch?v=fwXYZUBp4m0&list=PLmdFyQYShrjc4OSwBsTiCoyPgl0TJTgon&index=1
📅🆓NEET Rank & College Predictor 2024: https://infinitylearn.com/neet-rank-predictor?utm_source=YouTube&utm_medium=NEETYT&utm_campaign=LIVE An Iron Needle sticks to the Magnet when brought near it. But why only when it's near the Magnet? Why not from a distance very far away? Well it depends on the Strength of the Magnetic Field! To know what a Magnetic Field is, watch the entire video!
To access all videos related to Fun with Magnets, enroll in our full course now:
https://infinitylearn.com/microcourses?utm_source=youtube&utm_medium=Soical&utm_campaign=DM&utm_content=R4ht2RcWVlI&utm_term=%7Bkeyword%7D
To watch more Physics videos, click here: https://bit.ly/PhysicsVideos_DMYT
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🎯NEET 2024 Paper Solutions with NEET Answer Key: https://www.youtube.com/watch?v=fwXYZUBp4m0&list=PLmdFyQYShrjc4OSwBsTiCoyPgl0TJTgon&index=1
📅🆓NEET Rank & College Predictor 2024: https://infinitylearn.com/neet-rank-predictor?utm_source=YouTube&utm_medium=NEETYT&utm_campaign=LIVE An Iron Needle sticks to the Magnet when brought near it. But why only when it's near the Magnet? Why not from a distance very far away? Well it depends on the Strength of the Magnetic Field! To know what a Magnetic Field is, watch the entire video!
To access all videos related to Fun with Magnets, enroll in our full course now:
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To watch more Physics videos, click here: https://bit.ly/PhysicsVideos_DMYT
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#magnets #force #ngscience
Predict and test which objects are made of magnetic materials and which are made of non-magnetic materials. Head to ngscence.com for ...
#magnets #force #ngscience
Predict and test which objects are made of magnetic materials and which are made of non-magnetic materials. Head to ngscence.com for a range of related resources for use in the classroom or at home.
Non-contact Forces – Magnetic Force
Place an iron nail on a table. Slowly move a magnet towards the nail. What do you notice?
A magnet is an object with magnetic force. Magnetic force occurs in an object due to the motion of electrically-charged particles. As you observed when you moved the magnet near the iron nail, magnetic force can act at a distance. It is a non-contact force. It can act through solids, liquids and gases.
Magnetic force can attract objects made of certain metals such as iron and nickel. Magnetic force cannot attract objects made of plastic, wood, rubber or glass.
A magnet has two poles – a North pole and a South pole. It is at each pole that the magnetic force is the strongest.
When the like poles of two magnets are brought together, they push or repel each other. When unlike poles are brought together, they pull or attract each other.
Many objects make use of magnetic force. Some doors use magnets to keep them closed. Magnets are used to stick notes and photographs to refrigerators. They are used in electric motors, loudspeakers and can also be used for medical imaging and storing data on computer disks.
When a magnet is hanging freely, it will come to rest with the South pole pointing in the direction of north and the North pole pointing in the direction of south. A compass is a device that uses this property to find the direction of north.
A maglev (magnetic levitation) train has magnets that repel it from the track. This reduces friction and allows the train to travel at fast speeds.
www.ngscience.com
#magnets #force #ngscience
Predict and test which objects are made of magnetic materials and which are made of non-magnetic materials. Head to ngscence.com for a range of related resources for use in the classroom or at home.
Non-contact Forces – Magnetic Force
Place an iron nail on a table. Slowly move a magnet towards the nail. What do you notice?
A magnet is an object with magnetic force. Magnetic force occurs in an object due to the motion of electrically-charged particles. As you observed when you moved the magnet near the iron nail, magnetic force can act at a distance. It is a non-contact force. It can act through solids, liquids and gases.
Magnetic force can attract objects made of certain metals such as iron and nickel. Magnetic force cannot attract objects made of plastic, wood, rubber or glass.
A magnet has two poles – a North pole and a South pole. It is at each pole that the magnetic force is the strongest.
When the like poles of two magnets are brought together, they push or repel each other. When unlike poles are brought together, they pull or attract each other.
Many objects make use of magnetic force. Some doors use magnets to keep them closed. Magnets are used to stick notes and photographs to refrigerators. They are used in electric motors, loudspeakers and can also be used for medical imaging and storing data on computer disks.
When a magnet is hanging freely, it will come to rest with the South pole pointing in the direction of north and the North pole pointing in the direction of south. A compass is a device that uses this property to find the direction of north.
A maglev (magnetic levitation) train has magnets that repel it from the track. This reduces friction and allows the train to travel at fast speeds.
www.ngscience.com
Magnetism.
A magnet is an object or device that produces a magnetic field.
Magnet attracts objects made of nickel, iron and cobalt.
A magnet has 2 poles, the No...
Magnetism.
A magnet is an object or device that produces a magnetic field.
Magnet attracts objects made of nickel, iron and cobalt.
A magnet has 2 poles, the North Pole and the South Pole.
Opposite poles of two magnets always attract each other.
Like poles of two magnets always repel each other.
The Earth also behaves like a magnet.
South pole of the Earth's magnet is in the geographical North.
North Pole of the Earth's magnet is in the geographical South.
A freely suspended magnet always rests in the North South direction. This is because opposite poles attract each other.
Magnetism.
A magnet is an object or device that produces a magnetic field.
Magnet attracts objects made of nickel, iron and cobalt.
A magnet has 2 poles, the North Pole and the South Pole.
Opposite poles of two magnets always attract each other.
Like poles of two magnets always repel each other.
The Earth also behaves like a magnet.
South pole of the Earth's magnet is in the geographical North.
North Pole of the Earth's magnet is in the geographical South.
A freely suspended magnet always rests in the North South direction. This is because opposite poles attract each other.
This physics video tutorial focuses on topics related to magnetism such as magnetic fields & force. It explains how to use the right hand rule to determine the...
This physics video tutorial focuses on topics related to magnetism such as magnetic fields & force. It explains how to use the right hand rule to determine the direction of the magnetic force on a moving charge particle and how to use ampere's law to derive the formula of a solenoid. This video contains plenty of examples and practice problems.
Magnetic Force on a Current Carrying Wire:
https://www.youtube.com/watch?v=nv28Cp-ILJ0
Magnetic Force on a Moving Charge:
https://www.youtube.com/watch?v=7MBawzone30
The Homopolar Motor:
https://www.youtube.com/watch?v=6Oj4qvCR6ow
The Lorentz Force:
https://www.youtube.com/watch?v=6ThH8IpsqAA
Magnetic Field of a Current Carrying Wire:
https://www.youtube.com/watch?v=wZlHLHnZSRg
___________________________________
Magnetic Sensors - The Reed Switch:
https://www.youtube.com/watch?v=pw9_xmbFi6E
Magnetic Force Between Two Parallel Wires:
https://www.youtube.com/watch?v=8T_dP7Oq620
Ampere's Law - Magnetic Field of a Solenoid:
https://www.youtube.com/watch?v=lLQQjwuqdeg
Magnetic Field of a Toroidal Solenoid:
https://www.youtube.com/watch?v=XWtscd-IoDU
Magnetic Field of a Moving Charge:
https://www.youtube.com/watch?v=CXChim2gOzs
____________________________________
Torque on a Loop - Magnetic Dipole Moment:
https://www.youtube.com/watch?v=-l-aajUS_Ik
The Hall Effect:
https://www.youtube.com/watch?v=pnbRXo1q-nE
Magnetic Flux:
https://www.youtube.com/watch?v=y30ATrKpwpU
Faraday's Law of Electromagnetic Induction:
https://www.youtube.com/watch?v=LDOa7UdfcMQ
Lenz's Law - Induced Current:
https://www.youtube.com/watch?v=HhFZfWLl-P0
_______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/
Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections
Here is a list of topics:
1. Magnetism - Bar Magnets, North & South Pole
2. Forces of Attraction and Repulsion
3. Magnetic Field Due to a Straight Current-Carrying Wire
4. Magnetic Field Right Hand Rule
5. Magnetic Force on a Current Carrying Wire
6. Magnetic Force on a Moving Charge
7. Magnetic Force Between Two Parallel Conductors
8. Magnetic Force on a Wire
9. Magnetic Field of a Solenoid
10. Ampere's Law - Solenoid & Magnetic Field of a Straight Wire
11. Torque on a Current Loop in a Uniform Magnetic Field
12. Magnetic Force on a Proton and Electron
13. Electron's Path in a Uniform Magnetic Field
14. Radius of Curvature & Kinetic Energy
15. Energy of Electron in eV or Electron Volts
16. Converting Joules to eV
17. Unit of Magnetic Field - Tesla
18. Centripetal Force & Magnetic Fields
19. Permeability of Free Space Constant
20. Magnetic Dipole Moment
This physics video tutorial focuses on topics related to magnetism such as magnetic fields & force. It explains how to use the right hand rule to determine the direction of the magnetic force on a moving charge particle and how to use ampere's law to derive the formula of a solenoid. This video contains plenty of examples and practice problems.
Magnetic Force on a Current Carrying Wire:
https://www.youtube.com/watch?v=nv28Cp-ILJ0
Magnetic Force on a Moving Charge:
https://www.youtube.com/watch?v=7MBawzone30
The Homopolar Motor:
https://www.youtube.com/watch?v=6Oj4qvCR6ow
The Lorentz Force:
https://www.youtube.com/watch?v=6ThH8IpsqAA
Magnetic Field of a Current Carrying Wire:
https://www.youtube.com/watch?v=wZlHLHnZSRg
___________________________________
Magnetic Sensors - The Reed Switch:
https://www.youtube.com/watch?v=pw9_xmbFi6E
Magnetic Force Between Two Parallel Wires:
https://www.youtube.com/watch?v=8T_dP7Oq620
Ampere's Law - Magnetic Field of a Solenoid:
https://www.youtube.com/watch?v=lLQQjwuqdeg
Magnetic Field of a Toroidal Solenoid:
https://www.youtube.com/watch?v=XWtscd-IoDU
Magnetic Field of a Moving Charge:
https://www.youtube.com/watch?v=CXChim2gOzs
____________________________________
Torque on a Loop - Magnetic Dipole Moment:
https://www.youtube.com/watch?v=-l-aajUS_Ik
The Hall Effect:
https://www.youtube.com/watch?v=pnbRXo1q-nE
Magnetic Flux:
https://www.youtube.com/watch?v=y30ATrKpwpU
Faraday's Law of Electromagnetic Induction:
https://www.youtube.com/watch?v=LDOa7UdfcMQ
Lenz's Law - Induced Current:
https://www.youtube.com/watch?v=HhFZfWLl-P0
_______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/
Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections
Here is a list of topics:
1. Magnetism - Bar Magnets, North & South Pole
2. Forces of Attraction and Repulsion
3. Magnetic Field Due to a Straight Current-Carrying Wire
4. Magnetic Field Right Hand Rule
5. Magnetic Force on a Current Carrying Wire
6. Magnetic Force on a Moving Charge
7. Magnetic Force Between Two Parallel Conductors
8. Magnetic Force on a Wire
9. Magnetic Field of a Solenoid
10. Ampere's Law - Solenoid & Magnetic Field of a Straight Wire
11. Torque on a Current Loop in a Uniform Magnetic Field
12. Magnetic Force on a Proton and Electron
13. Electron's Path in a Uniform Magnetic Field
14. Radius of Curvature & Kinetic Energy
15. Energy of Electron in eV or Electron Volts
16. Converting Joules to eV
17. Unit of Magnetic Field - Tesla
18. Centripetal Force & Magnetic Fields
19. Permeability of Free Space Constant
20. Magnetic Dipole Moment
Learn about Magnetism with Dr. Binocs.
Hey kids, have you ever wondered how do magnets get attracted to each other? Here's Dr. Binocs with Ms. Magnet to teach you more about magnets and magnetism.
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Magnetism: Let's learn about magnets! A magnet has 2 poles: North pole and South pole. Magnets have a special property to attract materials such as iron, steel, nickel and cobalt. Magnets can be of different shapes: bar magnet, horse shoe magnet, disc magnet. Properties of a magnetic field and magnetic field lines are discussed. We also look at a magnetic compass and the Earth's magnetic field.
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At Manocha Academy, learning Science and Math is Easy! The school coursework is explained with simple examples that you experience every day! Yes, Science & Math is all around you! Let's learn every day from everyday life!
You’re probably familiar with the basics of magnets already: They have a north pole and a south pole. Two of the same pole will repel each other, while opposites attract. Only certain materials, especially those that contain iron, can be magnets. And there’s a magnetic field around Earth, which is why you can use a compass to figure out which way is north. In this episode of Crash Course Physics, Shini takes us into the world of magnetism!
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📅🆓NEET Rank & College Predictor 2024: https://infinitylearn.com/neet-rank-predictor?utm_source=YouTube&utm_medium=NEETYT&utm_campaign=LIVE An Iron Needle sticks to the Magnet when brought near it. But why only when it's near the Magnet? Why not from a distance very far away? Well it depends on the Strength of the Magnetic Field! To know what a Magnetic Field is, watch the entire video!
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#magnets #force #ngscience
Predict and test which objects are made of magnetic materials and which are made of non-magnetic materials. Head to ngscence.com for a range of related resources for use in the classroom or at home.
Non-contact Forces – Magnetic Force
Place an iron nail on a table. Slowly move a magnet towards the nail. What do you notice?
A magnet is an object with magnetic force. Magnetic force occurs in an object due to the motion of electrically-charged particles. As you observed when you moved the magnet near the iron nail, magnetic force can act at a distance. It is a non-contact force. It can act through solids, liquids and gases.
Magnetic force can attract objects made of certain metals such as iron and nickel. Magnetic force cannot attract objects made of plastic, wood, rubber or glass.
A magnet has two poles – a North pole and a South pole. It is at each pole that the magnetic force is the strongest.
When the like poles of two magnets are brought together, they push or repel each other. When unlike poles are brought together, they pull or attract each other.
Many objects make use of magnetic force. Some doors use magnets to keep them closed. Magnets are used to stick notes and photographs to refrigerators. They are used in electric motors, loudspeakers and can also be used for medical imaging and storing data on computer disks.
When a magnet is hanging freely, it will come to rest with the South pole pointing in the direction of north and the North pole pointing in the direction of south. A compass is a device that uses this property to find the direction of north.
A maglev (magnetic levitation) train has magnets that repel it from the track. This reduces friction and allows the train to travel at fast speeds.
www.ngscience.com
Magnetism.
A magnet is an object or device that produces a magnetic field.
Magnet attracts objects made of nickel, iron and cobalt.
A magnet has 2 poles, the North Pole and the South Pole.
Opposite poles of two magnets always attract each other.
Like poles of two magnets always repel each other.
The Earth also behaves like a magnet.
South pole of the Earth's magnet is in the geographical North.
North Pole of the Earth's magnet is in the geographical South.
A freely suspended magnet always rests in the North South direction. This is because opposite poles attract each other.
This physics video tutorial focuses on topics related to magnetism such as magnetic fields & force. It explains how to use the right hand rule to determine the direction of the magnetic force on a moving charge particle and how to use ampere's law to derive the formula of a solenoid. This video contains plenty of examples and practice problems.
Magnetic Force on a Current Carrying Wire:
https://www.youtube.com/watch?v=nv28Cp-ILJ0
Magnetic Force on a Moving Charge:
https://www.youtube.com/watch?v=7MBawzone30
The Homopolar Motor:
https://www.youtube.com/watch?v=6Oj4qvCR6ow
The Lorentz Force:
https://www.youtube.com/watch?v=6ThH8IpsqAA
Magnetic Field of a Current Carrying Wire:
https://www.youtube.com/watch?v=wZlHLHnZSRg
___________________________________
Magnetic Sensors - The Reed Switch:
https://www.youtube.com/watch?v=pw9_xmbFi6E
Magnetic Force Between Two Parallel Wires:
https://www.youtube.com/watch?v=8T_dP7Oq620
Ampere's Law - Magnetic Field of a Solenoid:
https://www.youtube.com/watch?v=lLQQjwuqdeg
Magnetic Field of a Toroidal Solenoid:
https://www.youtube.com/watch?v=XWtscd-IoDU
Magnetic Field of a Moving Charge:
https://www.youtube.com/watch?v=CXChim2gOzs
____________________________________
Torque on a Loop - Magnetic Dipole Moment:
https://www.youtube.com/watch?v=-l-aajUS_Ik
The Hall Effect:
https://www.youtube.com/watch?v=pnbRXo1q-nE
Magnetic Flux:
https://www.youtube.com/watch?v=y30ATrKpwpU
Faraday's Law of Electromagnetic Induction:
https://www.youtube.com/watch?v=LDOa7UdfcMQ
Lenz's Law - Induced Current:
https://www.youtube.com/watch?v=HhFZfWLl-P0
_______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/
Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections
Here is a list of topics:
1. Magnetism - Bar Magnets, North & South Pole
2. Forces of Attraction and Repulsion
3. Magnetic Field Due to a Straight Current-Carrying Wire
4. Magnetic Field Right Hand Rule
5. Magnetic Force on a Current Carrying Wire
6. Magnetic Force on a Moving Charge
7. Magnetic Force Between Two Parallel Conductors
8. Magnetic Force on a Wire
9. Magnetic Field of a Solenoid
10. Ampere's Law - Solenoid & Magnetic Field of a Straight Wire
11. Torque on a Current Loop in a Uniform Magnetic Field
12. Magnetic Force on a Proton and Electron
13. Electron's Path in a Uniform Magnetic Field
14. Radius of Curvature & Kinetic Energy
15. Energy of Electron in eV or Electron Volts
16. Converting Joules to eV
17. Unit of Magnetic Field - Tesla
18. Centripetal Force & Magnetic Fields
19. Permeability of Free Space Constant
20. Magnetic Dipole Moment