Fechar
the power to do work
an invisible wave caused by vibrations that move sound
a fast movement that goes back and forth
an invisible wave that moves light
a type of energy that lets us see
what you see when light bounces off different objects
to soak into something
to bounce off of something
energy that moves in waves and allows us to hear
a loud sound that a person might hear
how loud or soft a sound can be
how high or low a sound can be
a sound that is low and quiet
a sound that is strong and noisy
the pitch of a fast moving sound wave
the pitch of a slow moving sound wave
