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