science magnets quiz

attraction

SN SN

replusion

SN NS

alloy

combining two different substances to enhance strength

electromagnet

electric current magnet

magnet

a material or object that creates a magnetic field

magnetic field

an invisible field made y the moving particles of magnetic materials

compass

an instrument with a magnet that always points north

whats the difference between bar magnets and circular magnets?

a bar magnet only attracts things on the short sides, while a circular magnet does fully

what makes up magnetic materials?

iron, cobalt and nickel

when do magnets repel or attract?

repel: SN NS. attract: SN SN. (opposites attract)

what can electromagnets do that paremanent magnets can’t?

turn on and off, needs a power generator

what can permanent magnets do that’s different from electromagnets?

permanent magnets don’t need power , and it can’t turn off.