define the terms
potential energy
is stored energy due to the interaction between object partials
comon types of waves
mechanical and electrical
conducter
copper
gravatational
lifting a backpack
kinetic energy
is energy due to motion
kinetic energy
is energy due to motion
crest is on what end of the wave
top
insulater
plastic
elastic
streching a rubber band
electric force
the force that two electricly charged objects apply to each other
conducter
a material in which electric currents easly move
trough is on what end of the wave
bottom
opaque
a book
chemical
food and other things with glucose
magnetic force
is a push or pull a magnetic field applies to either a magnetic material of an electric current
insulater
a material in which electric currents can not move
sound waves pass through matter is called
transmition
translucent
tissue papper
how do we mesure the brightness of lights
with intentencity
electric current
it the movement of electriclly charged particals such as electrons
electric discarge
the loss of an unbalanced electric charge
computer playing music is what energy
sound
transparent
glass
explain how objects with the same type of electrical charge interact with each other
they repel each other
electric feild
the invisible region around any charged object where an electric force is applied