A) heat B) a material medium C) a field D) the atmosphere
A) the energy of distant stars B) a vacuum C) artificial lights D) the high energy of the Sun
A) conversion of EM waves into kinetic energy B) speed of EM waves in a vacuum C) energy that moves as EM waves D) motion of a medium caused by EM waves
A) decreases as the waves spread out B) increases as the amount of energy increases C) always remains constant D) depends on the source of the waves
A) are refracted B) are reflected in many directions C) pass through the water without interacting with it D) convert electromagnetic energy into heat
A) microwaves B) x-rays C) radio waves D) ultraviolet light
A) x-rays B) gamma rays C) ultraviolet light D) radio waves
A) microwaves B) radio waves C) x-rays D) ultraviolet light
A) radio waves B) ultraviolet light C) microwaves D) infrared light
A) microwaves B) radio waves C) ultraviolet light D) visible light
A) ultraviolet light B) x-rays C) radio waves D) microwaves
A) x-rays B) microwaves C) ultraviolet light D) radio waves |