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Sound and Light. Chapter 4. The Big Idea ?. What is Sound ?. Lesson 1. vibration volume. a back-and-forth movement of matter. the loudness of a sound. pitch frequency. how high or low a sound is. the number of vibrations per second.
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Sound and Light Chapter 4
The Big Idea ? What is Sound ? Lesson 1
vibration volume a back-and-forth movement of matter the loudness of a sound
pitch frequency how high or low a sound is the number of vibrations per second high (loud) sound low (soft) sound
The Big Idea ? What is light ? Lesson 2
reflection refraction the bouncing of light off an object the bending of light as it moves from one material to another
translucent transparent allowing only SOME light to pass through allowing light to pass through
opaque NOTallowing light to pass through
The Big Idea ? How Do Objects Bend Light ? Lesson 3
concave lens convex lens a lens that is thicker at the edges than in the middle a lens that is thicker in the middle than at the edges