Science Experiments

Archive for the ‘Magnetic Fields’ Category

Question: Is there anything that is none electrical that would block a magnetic field?

I’m doing a small experiment with my son for a science project and we are looking for magnetic resistance in typical household objects. So far we have found nothing. Glass. plastic, paper, water, nonferrous metals, wood, you name it. Of course it depends on the thickness of the material and the strength of the magnet. We are working with small neodymium magnets.

Answer: There exist several nickle-iron (plus some other impurities, like molybdene) alloys that can do that: mu-metal, permalloy, supermalloy, nilomag, sanbold. Mu-metal is often used for shielding of magnetic fields in household appliances.

magnets experiment

Question: what is a science experiment with a magnet?

Answer: I found you – a whole page – gives all the instructions – to perform a lot of experiments ♥

http://www.coolmagnetman.com/magattr.htm

Measuring the strength of magnets – using paperclips and BBs.
1. Count how many paperclips or staples you can attach end to end from the north pole to the south pole.
2. Count how many paperclips or staples you can attach to one of the magnet’s poles.
3. Have a big pile of paperclips or staples on the table and count how many will stick to the magnet, all over its surface.
4. Have a big pile of small (1 to 4mm in diameter, or 1/32 to 1/8″ diameter) steel ball bearings or BB’s in a plastic container, and count how many will stick to the magnet after you place the magnet into the middle of the pile and try to completely cover it with the BB’s. Remove the magnet all covered with BB’s, and take it to another plastic container to pull off and count the number of BB’s that the magnet was able to attract to itself.

Electromagnets – How can electricity create a magnet?

Below is a science experiment showing how to make an electromagnet. Making an electromagnet is simple but you do need some equipment to make small electromagnets. The video below shows you how to make electromagnets with a batter, wire, and screw driver. Be sure to perform electromagnet experiments under the supervision of an adult.

Making an electromagnet science experiment

How to Make an Electromagnet