1. POP QUIZ 1.What is one complete cycle of a wave called (ONE CREST AND ONE TROUGH)? 2.Frequency is measured in what unit? 3.What has more energy, a radio wave or an x- ray? 4.Why does a fun house mirror make your shape look different? 5.If there is no air in a room, do you hear sound? Why?

2. POP QUIZ 6.What is the purpose of the pupil? 7.Why does sound move better through a solid vs a liquid or gas? 8.What is the wave-particle duality? 9.What do we call a particle of light? 10.Why is a light brightest at the source and dimmer far away? Which vocab word explains this?

3. POP QUIZ 11. Light travels fastest through what state of matter? 12.What is the doppler effect? 13.The part of the eye that determines the color you see is the what? 14.What is the relationship between frequency and pitch? 15.What is faster, sound waves or light waves?

4. POP QUIZ 1.What is one complete cycle of a wave called (trough to trough or crest to crest)? (period) 2.Frequency is measured in what unit? (hertz) 3.What has more energy, a radio wave or an x- ray? (x –ray) 4.Why does a fun house mirror make your shape look different? (scattering) 5.If there is no air in a room, do you hear sound? Why? (No-no molecules for vibrations to bounce off of. )

5. POP QUIZ 6.What is the purpose of the pupil? (Control amount of light let in to eye) 7.Why does sound move better through a solid vs a liquid or gas? (more molecules and tighter packed molecules for vibrations to bounce off of) 8.What is the wave particle duality? (light sometimes behaves like a wave and sometimes like a particle) 9.What do we call a particle of light? (photon) 10.Why is a light brightest at the source and dimmer far away? Which vocab word explains this? (dispersion-it spreads out as it moves further away and gets less intense)

6. POP QUIZ 11. Light travels fastest through what state of matter? (gas) 12.What is the doppler effect? (sound waves in front of a moving object are compressed, in back they disperse) 13.The part of the eye that determines the color you see is the what? ( cones) 14.What is the relationship between frequency and pitch? (higher frequency, higher pitch) 15.What is faster, sound waves or light waves? (light waves)