Magnets And Levers Flashcards
what type of force is magnetism
a non-contact force
what do magnet attract
magnetic materials
what are some magnetic materials
iron, nickel and cobalt
what are some mixtures that will also be attracted
steel
what materials wont be attracted to a magnet
aluminium and copper
what sides of a magnet attract
north pole and south pole
what sides repel each other.
two north poles and two south poles
what is a bar magnet and why
a permanent magnet because it is always magnetic
what is a electromagnet and when is active
a coil of wire with an electric current flowing through it. it is only magnetic when the current is flowing
how can you make an electromagnet stronger
add more coils
increase the size of current by increasing the voltage
using an iron core
what is a magnets magnetic field
the space around a magnet where it has an effect
how can you find the shape of an magnetic field
using iron filings or a plotting compass
what can forces be used to turn around
a pivot
another word for a pivot
fulcrum
how do levers work
by maximising the force that is put in or they can make the load move further than the effort
