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Why does a steel ship become magnatised as it is constructed?
Welding, in short. Welding steel which contains iron will magnetize it as running an electric current through it will create a temporary magnetic field. This field will magnetize the iron in the steel and therefore give the ship a field of its own.
What is a simple way to make things magnatised?
hit it with a hammer, stroke it with a magnet or flow an electric current through or closely around it!
What are the only materials that can become magnetic?
Only materials with magnetic properties, such as iron, nickel, and cobalt, can become magnetic. Other materials, such as wood or plastic, do not have the necessary properties to become magnetic.
What is the difference about the domains in a magnetised steel bar and one that is unmagnetised?
The difference is the domains are facing in random directions in the unmagnatised and in the magnatised they are all facing the same way!
Which materials tend to become positively charged?
Materials that tend to become positively charged include materials that easily lose electrons, such as rubber, glass, and human hair. When these materials gain excess protons (positively charged particles) through contact or friction, they become positively charged.
When do non-magnetic materials become attracted to magnets?
Non-magnetic materials become attracted to magnets when they are placed in a strong magnetic field.
What willl happen to the charges when materials become magnitized?
it will become a magnetic feild
What kind of materials can become electrically charged when they are rubbed together?
When certain materials are rubbed together, they can become electrically charged. These materials are typically non-metallic and include substances like rubber, plastic, and fur.
What do most materials do when freezing?
Contract, or become smaller.
How do materials become charged when rubbed together?
By electrons
What happens to materials that become positive recharge?
they are ions
List two materials that become hot easily?
Two materials that become hot easily are metal (such as iron or aluminum) and glass. These materials have high thermal conductivity, which allows heat to transfer quickly through them, causing them to heat up rapidly.
