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