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