magnets 1

what are the three minerals that are attracted to magnets

• copper, nickel, iron

• iron, cobalt and nickel

• nickel, iron, Zinc

• zinc, iron, copper

copper, iron, nickel make earth into what

• polar

• charged

• big magnet

• ion

magnetism is made up of

• moving protons

• moving charges

• moving neutrons

• moving electrons

where does the moving electron comes from that create magnetism

• current

• electron

• proton

• neutron

what makes magnetic objects different from non magnetic objects

• electron spin in different, random directions

• electron spins in same direction

• magnetic force flow from the north to the sides

• magnetic forces floe from the south to the sides

just like N and S poles on magnet bar, electron and protons ________to each other

• attract

• repel

• repulse

• push apart

when an electric current flows through wire, a magnetic field is created. To increase the power of the magnetic field----

• decrease the coils in the wire

• keep the same number of the coils in the wire

• increase the coils in the wire

• remove coils from the wire