Magnetism

To determine the poles of a magnetized iron bar, you can use a compass. One end of the bar that attracts the north-seeking end of the compass needle is the north pole of the bar. The opposite end that attracts the south-seeking end of the compass needle is the south pole of the bar.

A magnet in close proximity to the heart can interfere with the natural electrical impulses that regulate its function. This can disrupt the heart's rhythm and potentially lead to serious issues like arrhythmias or even cardiac arrest. It's important to avoid placing magnets near your heart or any electronic medical devices like pacemakers to prevent complications.

Not much as far as you can tell. But in fact a temporary voltage will build up and collapse between the two ends of the wire, assuming it's insulated and the magnetic is strong enough. For more information, go to college.

Magnetic poles attract each other if they are of opposite polarity (north pole attracts south pole) and repel each other if they are of the same polarity (north pole repels north pole or south pole repels south pole). They do not exhibit neutrality towards each other.

A magnetic field is created around the magnet that can attract objects without physical contact. This field can extend some distance from the magnet, allowing it to influence objects nearby without directly touching them.

No, silicon (Si) is not magnetic because it does not have unpaired electrons in its outer shell that would give rise to a magnetic moment. Silicon is a semiconductor that is widely used in electronic devices due to its ability to conduct electricity under certain conditions.

When a north pole is brought close to a south pole, they will attract each other due to their opposite magnetic fields. The two poles will come together until they are aligned, creating a larger magnetic field around them.

The mantle, by far, is the thickest layer of the Earth.

no because it's gold and gold is a pure metal , pure metals aren't ferrous (magnetic )

Because of Bernoulli's principle. A moving train makes the air close(r) to the train move faster. Faster moving air has less pressure. So a paper is sucked closer to the train because of the pressure differential.

Rainbows can appear in the sky when sunlight is refracted and reflected by raindrops, creating a spectrum of colors. You can see a rainbow when you stand with your back to the sun and rain is falling in front of you. Rainbows are not physical objects and do not have a specific location.

Magnetic iron contains iron atoms that are aligned in a magnetic field, making it attracted to magnets. Non-magnetic iron does not exhibit this property and has iron atoms that are not aligned in a magnetic field, thus not being attracted to magnets.

it isn't, a magnet contains electrons and neutrons which connect to the electrons and neutrons in metal!

No, scheelite is not magnetic. It is a non-magnetic mineral that is commonly found as a tungsten ore.

When both ends of a magnet meet, like poles will repel each other and opposite poles will attract each other. If they are aligned in the same direction, the magnets will stick together due to magnetic attraction. If they are aligned in opposite directions, the magnets will push away from each other due to magnetic repulsion.

No, soaking a magnet in water does not affect its power. Magnets are typically not affected by water or other liquids, so it should not impact its magnetic strength.

No, magnets do not attract aluminum bike frames. Aluminum is not a magnetic material, so it does not respond to magnetic fields like iron or steel does.

Gold is non-ferrous and therefore is not attracted by a magnet. There are other metal that are attracted by a magnet but gold is not one of them. You can tell what is a ferrous metal and what is a non ferrous one but you cannot identify gold.

Like poles of a magnet repel each other due to the magnetic field forces. When two north poles are brought close, the magnetic fields push against each other, causing them to repel rather than attract. This phenomenon follows the basic principle of magnetism where opposite poles attract and like poles repel.

The deviation card of a magnetic compass is specific to the location and magnetic conditions where it was calibrated. Deviation values change when crossing the magnetic equator due to differences in magnetic variation between the two hemispheres. Therefore, a deviation card calibrated in the northern hemisphere may not accurately represent the deviations experienced in the southern hemisphere.

Yes, horseshoe magnets have two poles just like bar magnets - a north pole and a south pole. The poles are located at the ends of the horseshoe shape.

The N pole of a compass points towards northern Canada because Earth's magnetic field is generated by the movement of molten iron in its outer core. The Earth's magnetic north pole is located near northern Canada, so the N pole of a compass aligns with this magnetic field direction.

In the past, magnets were used for compasses for navigation, including in exploration and sailing expeditions. They were also used in tools such as magnetic needles and magnetized chisels for various purposes.

Copper is a commonly used material for making the coil of a magnet due to its high electrical conductivity and flexibility. It allows for efficient transfer of electrical current to create a magnetic field. However, other materials such as aluminum or silver can also be used depending on specific requirements.

A fan uses magnets by generating a magnetic field that interacts with electric current, which creates a force that drives the fan blades to rotate. This rotation creates airflow, providing cooling or ventilation in various applications. Magnets play a crucial role in converting electrical energy into mechanical energy in a fan.