Science test 1/16

Magnetism

the force that causes some materials, like iron, to attract or repel each other without touching

non contact force

a push or pull that acts on an object without physically touching it,

magnet

a material or object that produces an invisible magnetic field, allowing it to attract or repel other magnets and pull ferromagnetic

repel

to forcefully drive something back, hold it off, or refuse it

attract

to draw something or someone toward oneself, either through a physical force (like a magnet pulling iron) or by appealing to emotions, senses, or interests

Iron Fillings

tiny, fine fragments or powder of iron, often a byproduct of filing or grinding metal

Magnetic Field

an invisible force field surrounding magnets, electric currents, or changing electric fields, representing the magnetic influence

Magnetic field lines

imaginary lines used to visualize a magnetic field, showing both its direction and strength

compass

a navigational tool with a magnetized needle pointing north

Dipolar

having two poles, often referring to molecules with separated positive and negative electrical charges

Earth’s poles

geographic (True North/South) and magnetic (North/South Magnetic Poles)

Magnetoshpere

region of space around a planet where its magnetic field dominates, acting as a protective shield against harmful charged particles from the solar wind.

Electromagnet

a temporary magnet created by passing electric current through a coil of wire, usually wrapped around a ferromagnetic core

electric current

the flow of electric charge (like electrons or ions) through a conductor or space, measured in Amperes