- Why do apples repel magnets?
- What happens if you put a magnet near a compass?
- Do magnets stick to steel?
- Are apples magnetic?
- What happens when you suspend a magnet from a string?
- Will a magnet pick up iron?
- What cereal has the most iron?
- Does dark chocolate have iron?
- Why do like ends of a magnet repel?
- What is repelled by a magnet?
- What happens if a magnet is cut in half?
- What are the opposite ends of a magnet called?
- Can a magnet stop a watch?
- Can a magnet pick up copper?
- Do magnets repel water?
- Are grapes repelled by magnets?
- What foods are magnetic?
- Is spinach magnetic?
Why do apples repel magnets?
Iron is attracted to a magnet because it is ferromagnetic.
Droplets of liquid oxygen are (weakly) attracted to a magnet because it is paramagnetic.
Since water is diamagnetic and apples contain water, I have ‘explained’ why an apple is weakly repelled from a strong magnet..
What happens if you put a magnet near a compass?
The needle of a compass is itself a magnet, and thus the north pole of the magnet always points north, except when it is near a strong magnet. … When you take the compass away from the bar magnet, it again points north. So, we can conclude that the north end of a compass is attracted to the south end of a magnet.
Do magnets stick to steel?
Magnets can either attract or repel each other. A permanent magnet is an object that produces a magnetic field around itself. It is this field that enables them to stick to each other and to some types of metal. Specifically, they stick to ferromagnetic materials like iron and things that contain iron, such as steel.
Are apples magnetic?
All in all, the results show that the magnetic balance is useful both as a qualitative and quantitative experiment. Finally, the magnetic balance can detect that an apple is magnetic. For an ordinary apple the mass difference Δm = + 0.26 g (≈ 0.19% of mapple) reveals the diamagnetic properties.
What happens when you suspend a magnet from a string?
If we suspend a magnet by a string from its center so that it is free to turn, it will turn until there axis lines up with its poles, lying along the earth’s magnetic north and south poles.
Will a magnet pick up iron?
Like many metals, iron is magnetic, so if you have a strong enough magnet, you will be able to pick it up.
What cereal has the most iron?
Ralston Enriched Bran flakesThe top breakfast cereal is Cereals ready-to-eat, Ralston Enriched Bran flakes with the highest iron content, which in 100g contains 67.67 mg of iron.
Does dark chocolate have iron?
Dark chocolate is incredibly delicious and nutritious. A 1-ounce (28-gram) serving contains 3.4 mg of iron, which is 19% of the DV ( 51 ). This small serving also packs 56% and 15% of the DVs for copper and magnesium, respectively.
Why do like ends of a magnet 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).
What is repelled by a magnet?
The materials that magnets repel are diamagnetic. They contain only paired electrons spinning in opposite directions around the nucleus, thereby canceling each other out and producing no magnetic field. … Other than water, materials with the strongest diamagnetic force are carbon graphite, bismuth and silver.
What happens if a magnet is cut in half?
You can think of a magnet as a bundle of tiny magnets, called magnetic domains, that are jammed together. Each one reinforces the magnetic fields of the others. Each one has a tiny north and south pole. If you cut one in half, the newly cut faces will become the new north or south poles of the smaller pieces.
What are the opposite ends of a magnet called?
Magnets can also attract each other, but only if they face in opposite directions. A magnet has two ends called poles; one end is the north pole and the other is the south pole. A north pole will attract a south pole; the magnets pull on each other.
Can a magnet stop a watch?
As a result, watches may stop or fail to keep correct time. But magnetism remaining inside of the watch does not affect its accuracy, so keep it away from magnetic sources and correct the time. In case the watch has been influenced by an extremely strong magnetic force, we recommend that you have it demagnetized.
Can a magnet pick up copper?
If you have a strong enough magnetic field all matter is magnetic. 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.
Do magnets repel water?
It doesn’t seem like it would be magnetic but it turns out water, and all matter, can exhibit magnetic properties if you put them in a big enough magnetic field. Water is slightly repelled by a very strong magnet. If you have a neodymium magnet you can test this out yourself.
Are grapes repelled by magnets?
A grape is diamagnetic and is repelled by a magnet. A grape is repelled by both north and south poles of a strong rare-earth magnet.
What foods are magnetic?
You may have heard about meat and spinach being rich in iron (what do you think made Popeye so amazingly buff?) but it’s found in many other foods, including most breakfast cereals. Iron is naturally magnetic, and even though your blood contains iron, you can’t get a refrigerator to stick to you.
Is spinach magnetic?
It’s the same in the case of spinach: The iron in the spinach (fortunately) isn’t in the form of little pieces of metal; it’s in the form of complex chemical compounds that just aren’t magnetic.