- How do you explain magnetic force to a child?
- Which is the weaker magnet?
- What happens when you wrap a magnet in copper?
- How do you calculate the force between two magnets?
- What is the force between two magnets called?
- Can a magnet pick up copper?
- Can magnets demagnetize each other?
- Why are magnets stronger at the ends?
- What are 3 methods of making magnets?
- What is magnetic force short answer?
- Where is the magnetic field the strongest?
- Are 2 magnets stronger than 1?
- Is a magnets push or pull stronger?
- Why is force of attraction stronger than repulsion?
- Where is Earth’s magnetic field the weakest?
- Does putting 2 magnets together make them stronger?
- Who is discovered magnet?
- What is in a magnetic field?
- What happens if you force two magnets together?
- Can you block a magnetic field?
- What happens when you wrap copper wire around a magnet?
How do you explain magnetic force to a child?
A magnet is a rock or a piece of metal that can pull certain types of metal toward itself.
The force of magnets, called magnetism, is a basic force of nature, like electricity and gravity.
Magnetism works over a distance.
This means that a magnet does not have to be touching an object to pull it..
Which is the weaker magnet?
magnet 2 is the weaker magnet because its field lines are smaller than that of the magnet 1.
What happens when you wrap a magnet in copper?
The magnet produces a static field. Unless you move the magnet inside the coil of copper wire, no electromotive force will be developed across the terminals of the wire. In other words, only if the coil wire cuts the magnetic lines of force, a voltage is induced into the wire. By the way, the wire must be insulated.
How do you calculate the force between two magnets?
F is force (SI unit: newton) qm1 and qm2 are the magnitudes of magnetic poles (SI unit: ampere-meter) μ is the permeability of the intervening medium (SI unit: tesla meter per ampere, henry per meter or newton per ampere squared) r is the separation (SI unit: meter).
What is the force between two magnets called?
The force that a magnet exerts on certain materials, including other magnets, is called magnetic force. The force is exerted over a distance and includes forces of attraction and repulsion. North and south poles of two magnets attract each other, while two north poles or two south poles repel each other.
Can a magnet pick up copper?
But copper is so weakly magnetic that we can’t observe it without very, very large magnetic fields. So the short answer is “No, copper isn’t magnetic.” This can quickly be tested by trying to pick up a penny with a magnet. But copper will interact with magnets in fascinating ways.
Can magnets demagnetize each other?
When a magnetized magnet is exposed to a strong magnetic field that is established in opposition to the magnet’s magnetization, part of the magnet may be demagnetized. … Both the external field and the elevated temperature conspire to demagnetize the magnet alloy.
Why are magnets stronger at the ends?
The dipole tries to align itself with a magnetic field, but at the ends of a bar magnet, the field lines are very close together. What this indicates is that the magnetic field varies strongly over a short distance compared to the variation closer to the middle of the magnet.
What are 3 methods of making magnets?
There are three methods of making magnets: (1) Single touch method (2) Double touch method (3) Using electric current.
What is magnetic force short answer?
Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. It is the basic force responsible for such effects as the action of electric motors and the attraction of magnets for iron.
Where is the magnetic field the strongest?
As can be visualized with the magnetic field lines, the magnetic field is strongest inside the magnetic material. The strongest external magnetic fields are near the poles. A magnetic north pole will attract the south pole of another magnet, and repel a north pole.
Are 2 magnets stronger than 1?
Two magnets together will be slightly less than twice as strong as one magnet. When magnets are stuck entirely together (the south pole of one magnet is connected to the north pole of the other magnet) you can add the magnetic fields together.
Is a magnets push or pull stronger?
In any magnet, there are areas where the force of magnetism is strongest. … If the north pole of one magnet lines up with the south pole of another, the magnets pull together. If the north pole of one magnet meets the north pole of another (or south meets south), the magnets push apart.
Why is force of attraction stronger than repulsion?
It is due to the fact that the closer the two objects are, the stronger the force. So if two things are attracted to each other, they will be increasing in force as they get closer; whereas, if they are repelling, the force becomes slightly weaker due to the larger distance between the two objects.
Where is Earth’s magnetic field the weakest?
equatorThe intensity of the magnetic field is greatest near the magnetic poles where it is vertical. The intensity of the field is weakest near the equator where it is horizontal. The magnetic field’s intensity is measured in gauss. The magnetic field has decreased in strength through recent years.
Does putting 2 magnets together make them stronger?
By adding one magnet on to the other, e.g. stacking, the stacked magnets will work as one bigger magnet and will exert a greater magnetic performance. As more magnets are stacked together, the strength will increase until the length of the stack is equal to the diameter.
Who is discovered magnet?
Who invented magnets? The first magnets were not invented, but rather were found from a naturally occurring mineral called magnetite. Traditionally, the ancient Greeks were the discoverers of magnetite. There is a story about a shepherd named Magnes whose shoe nails stuck to a rock containing magnetite.
What is in a magnetic field?
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetized materials. … Magnetic fields are produced by moving electric charges and the intrinsic magnetic moments of elementary particles associated with a fundamental quantum property, their spin.
What happens if you force two magnets together?
In other words, if you hold two magnets together so that like-poles are close together (two norths OR two souths), they repel. … When two like-poles point together, the arrows from the two magnets point in OPPOSITE directions and the field lines cannot join up. So the magnets will push apart (repel).
Can you block a magnetic field?
There is no known material that blocks magnetic fields without itself being attracted to the magnetic force. Magnetic fields can only be redirected, not created or removed. To do this, high-permeability shielding alloys are used. The magnetic field lines are strongly attracted into the shielding material.
What happens when you wrap copper wire around a magnet?
Coiling a wire up makes the magnetic field stronger and more uniform over a volume because it brings more of the wire closer in to where the field is desired (inside the core of a solenoid). You can bend a solenoid around on itself, no problem, and in fact many are constructed in exactly this way.