Magnetism

Gold, Silver, Bronze. hope this helps LOL :)

When two magnets are brought together, the opposite poles will attract one another, but the like poles will repel one another. This is similar to electric charges. Like charges repel, and unlike charges attract.

Actually, they point at the magnetic north and south poles. The Magnetic North Pole is currently somewhere north-east of Canada. The naming of the poles on a magnet is confusing. The north pole would actually be better called the north seeking pole. Answer. Because the Earth itself acts like a massive magnet with its south pole at the Magnetic North Pole and vice versa. Remember 'like poles repel, unlike poles attract'.

Hans Oersted discovered Electro- Magnetic Induction in 1820

A bolt is typically a stronger electromagnet than a nail because of its iron content and shape that allows for better magnetic alignment. The increased surface area and mass of a bolt result in stronger magnetic properties compared to a nail.

The magnet is placed over a super conducting material. Because super conductors conduct electricity with zero resistance, it repels the magnet making it float. The super conductor is usually a piece of YBa2Cu3O7 cooled to below 92 degrees kelvin. At this temperature, the substance changes state from a solid to a bose-einstein condensate and is a super conductor.

If an electron enters a magnetic field parallel to the field lines (i.e., parallel to B), it will not experience any deflection or force due to the magnetic field. This is because the force on a charged particle moving parallel to a magnetic field is zero.

Yes, a demagnetizable magnet can be remagnetized. This is done by subjecting the magnet to a strong enough magnetic field in the opposite direction to re-align its magnetic domains and restore its magnetism.

Yes, many insects are attracted to sugar because it provides a quick source of energy for them. Bees, ants, flies, and butterflies are some examples of insects attracted to sugar sources like nectar, honey, and fruits.

Magnets are used on escalators to help detect the speed and direction of movement. This information is then used to regulate the speed of the escalator for safety and efficiency purposes.

The more paramagnetic the species is, the larger the mass shift. So, since oxygen has two unpaired electrons in the molecular orbital diagram it will have the strongest mass shift on a magnetic susceptibility balance.

When two magnets pull apart or push together, it is called magnetic attraction or repulsion. Magnetism results from the force between charged particles in magnetic materials.

Any object that is nuetral that does not have magnetic pole's

Magnets are created by magnetizing certain metals that can be magnetized, called ferromagnetic materials. Ferromagnetic materials can be magnetized in the following ways:

# Heating the object above its Curie temperature, allowing it to cool in a magnetic field and hammering it as it cools. This is the most effective method, and is similar to the industrial processes used to create permanent magnets. # Placing the item in an external magnetic field will result in the item retaining some of the magnetism on removal. Vibration has been shown to increase the effect. Ferrous materials aligned with the earth's magnetic field and which are subject to vibration (e.g. frame of a conveyor) have been shown to acquire significant residual magnetism. A magnetic field much stronger than the earth's can be generated inside a solenoid by passing direct current through it. # Stroking - An existing magnet is moved from one end of the item to the other repeatedly in the same direction.

Both magnets and charges produce a magnetic field that can exert forces on other magnets or charges, and they can either attract or repel each other based on their configuration (like poles attract, opposite poles repel). Additionally, they both follow the inverse square law, where the strength of the force decreases with the square of the distance between them.

Yes, metal can be deflected by magnetism through the use of a magnetic field. When a metal object interacts with a strong magnetic field, it can be pushed or pulled in a certain direction due to the magnetic forces at play.

Because the inner core of Earth is a solid sphere suspended in the gravitational center of the liquid outer core. Both cores are an alloy made up of mainly nickel and iron. This alloy is conductive and the inner core is spinning at a different rate in the outer core. This difference in angular momentum creates a huge electric dynamo, which in turn creates a strong magnetic field. If and when the core of the earth completely cools to a solid the dynamo effect will cease, and our magnetic field will collapse. If there is any atmosphere that remains at this time, it will be boiled off into space by our suns solar wind. The water will eventually follow the way of the atmosphere and the surface of earth will begin to look like the surface of Mars.

the tangent at any point on an electric field line gives the direction of the field at that point . so if field lines intersect then electric field at will have more than1 direction which is impossible

The known magnetism in a bar magnet is electromagnetism.

Adding more paper increases the distance between the magnet and the metal surface of the refrigerator. The farther the magnet is from the metal, the weaker the magnetic force holding it in place. This reduced magnetic force can cause the magnet to fall off.

At each equinox, day and night are approximately equal in length at the North and South Poles. However, the poles experience a gradual transition from 24-hour darkness to 24-hour daylight or vice versa over a period of weeks due to the tilt of the Earth's axis. This transition is known as the polar day and polar night phenomenon.

No. Rust is a compound of iron, and magnesium is not iron so it cannot rust. Magnesium is however a very reactive metal and it can corrode in the presence of oxygen and water. In fact when you look at a piece of magnesium you are probably really looking at the thin, dull layer of magnesium oxide which coats its surface. If you scrape the oxide off the surface you will see the bright magnesium metal beneath only very briefly because the metal reacts quickly with the oxygen in the air and the oxide re-forms. Many other metals behave in a similar way. You can prevent this reaction from taking place by cleaning the oxide off while the metal is submerged under a relatively unreactive liquid such as oil. Don't use water!

The only 3 elements that are magnetic are Iron, Nickel and Cobalt.

Any other metals containing any of these elements (e.g. Steel contains Iron) will also be magnetic.

What you have here is a classic example of "begging the question". Your question carries with it the implied (but erroneous) statement that water can be magnetized. Neither the hydrogen nor the oxygen which combine to produce the water molecule can be magnetized but, in an intense magnetic field at close to its melting point, oxygen will demonstrate some paramagnetic properties. Magnetized water is a myth but it is used quite frequently to remove money from peoples' wallets.

Magnetism leaves particles in molten metals lined up with north and south poles (magnetic poles, not the Earth's poles). Over time different layers of rock show that the N-S and S-N poles have switched, with S pointing in one direction and S pointing in a different direction depending on the age of the rock.