Static Charge Flashcards
a cloth and plastic ruler are rubbed together, why does the ruler become positively charged
the ruler has lost electrons or transferred electrons to the cloth
why does your hair stand on end when you touch a Van der Graaf machine
each hair strand has the same charge so they repel each other
why do you need to stand on plastic for a Van der Graaf to work properly
plastic is an insulator- the charge won’t be earthed
two insulating material are rubbed together. as a result forces act on the two materials. describe the forces
the forces will be equal in size and act in opposite directions
how is static charge created
the rubbing together of two insulators causes a transfer of electrons
why doesn’t a metal ruler become charged when rubbed against a cloth
metals conduct free electrons
