Exhibits, Shows and Displays

Fill in the blank chem help needed?

13.The speed of an electromagnetic wave is ______. proportional to its frequencyinversely related to its amplitude always the sameimpossible to measure 14.Light exhibits characteristics of ______. wavesparticles both waves and particlesneither waves nor particles 15.Ultraviolet rays have __________ than visible light. shorter frequencies and higher wavelengthshigher amplitudes and shorter frequencies longer wavelengths and lower frequencieshigher frequencies and shorter wavelengths 16.De Broglie postulated that there is a mathematical relationship between the mass and velocity of a moving particle and the particle's _______. motionamplitude wavelengthcharge 17.When radiation is absorbed by a hydrogen electron, the hydrogen changes its ground state to _______. an excited statea lower state another atomthe nucleus of the atom 18.When exposed to a flame, neon gas ______. emits neon green lightemits red light absorbs red lightemits heat but no light from the visible spectrum 19.The greater the mass of a particle, the _______. smaller its amplitudesmaller its wavelength smaller its frequencysmaller its momentum 20.All waves can be described in terms of their _______. amplitude, spin, and wavelengthamplitude, wavelength, and velocity frequency, wavelength, and velocitywavelength, frequency, and amplitude 21.Einstein postulated that light consists of ______, which are tiny quanta of energy that behave like particles. electronsradons photonsgammas 22.The phenomenon in which electrons are ejected from the surface of a metal when that metal is exposed to light is called the _________. photoelectric effectpiezoelectric effect electromagnetic effectbutterfly effect 23.Intensity is a measure of the _______. amount of energy in a photon of lightspeed of a photon of light brightness of lightcolor of a photon of light

Public Comments

1. 1)always the same 2)both waves and particles 3)higher frequencies and shorter wavelengths 4') 5)an excited state 6) 7)smaller its wavelength 8)frequency, and amplitude 9)photons 10)photoelectric effect 11)intensity is the no of photons falliing on unit area