science quiz

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magnetism

an invisible force of nature that allows certain materials to pull on or push away other objects without touching them

non contact force

a force that acts on an object from a distance without any physical touching between the two objects.

magnet

an object or material that produces an invisible magnetic field and can attract certain materials

repel

exert a force that pushes two objects away from each other.

Attract

exert an invisible pulling force that draws two objects closer together.

Iron filings

very small, grain-like pieces of iron that act as tiny bar magnets when placed near a magnetic source

magnetic field

the invisible area of influence surrounding a magnet or an electric current where magnetic force can be detected.

magnetic field lines

a visual tool used to represent the invisible magnetic field around a magnet or electric current

compass

a navigational instrument that uses a small, lightweight magnet (a needle) to detect and align with the Earth’s magnetic field.

dipolar

magnetism is an invisible force that allows certain objects to pull on (attract) or push away (repel) other objects without touching them

earth’s poles

hic Poles, which are fixed based on the planet's rotation, and Magnetic Poles, which move constantly due to the flow of molten iron in the Earth's core.

magnetosphere

a vast, invisible region of space surrounding a planet where its magnetic field is the dominant force.

Electromagnet

a temporary magnet that generates its magnetic field using an electric current

Electric current

the physical flow of electric charge through a conductive material.