1) These waves have the longest wavelength and the lowest frequency. a) Gamma Rays b) Microwaves c) Radio Waves d) Infrared Waves 2) Which wave has high enough energy to cause damage to skin and sometimes cancer? a) Microwaves b) Visible Light c) Infrared Rays d) Ultraviolet Rays 3) Electromagnetic waves that you can see are called: a) x-rays b) visible light c) radio waves d) gamma rays 4) Waves with a high frequency have a _________ wavelength. a) Long b) Short 5) Electromagnetic waves are __________ waves, the energy of the wave moves at right angles to the direction of travel. a) Transverse b) Longitudinal  6) Which type of wave has the highest frequency? a) Radio Waves b) Microwaves c) Visible Light d) Gamma Rays 7) Light does not pass through an object. The object is _________. a) Transparent b) Translucent c) Opaque 8) Some light passes through an object. The object is _______. a) Transparent b) Translucent c) Opaque 9) All light passes through an object. The object is _______. a) Transparent b) Translucent c) Opaque 10) Light that bends when it strikes an object . . . a) Reflection b) Refraction c) Transmission 11) True or False: Sound CAN travel through a vacuum. a) True b) False 12) As wavelength increases, the frequency ________. a) Stays the same b) Increases c) Decreases 13) A material through which a wave can travel is known as a ________. a) Medium b) Interference c) Spectrum 14) The speed of sound travels faster in ________ air than in ________ air. a) Colder/Warmer b) Warmer/Colder 15) The speed of light travels fastest in a ________, the speed of sound travels fastest in a ________. a) liquid/solid b) gas/solid

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