1) ------ are back-and-forth movements of an object. a) lights b) sounds c) vibrations 2) ---- is the highness or lowness of a sound. a) pitch b) a wave c) sound 3) Volume is measured in-----. a) pitch b) decibels c) high pitch 4) Define Frequency: a) waves that move side to side b) how loud a sound is observed c) the number of vibrations that happen over time. 5) What type of sound is useful in medicine? a) ultrared b) ultraviolet c) ultrasound 6) Which kind of matter does sound travel through the slowest? a) solid b) gas c) liquid 7) True or False? Light is a form of energy that can move through space. (not outer space Jed) a) True b) False 8) What type of material is pictured? a) translucent b) transparent c) opaque 9) What is being pictured? a) Refraction b) Rainbow c) Reflection 10) What type of lens is pictured? a) concave b) convex 11) Which term best describes the form sound takes as it travels away from a drum? a) music b) gas c) waves d) particles 12) People often use sounds to identify objects they cannot see. Which properties of sound help you recognize a ref's whisle? a) high volume b) high frequency c) low frequency d) low volume 13) What type of material is pictured? a) transparent b) opaque c) translucent

Light and Sound Waves

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