Word Bank
echo inertia frequency vibration
transparent concave convex opaque
refraction weight action spectrum
a back and forth motion
the number of times an object vibrates per second
a reflected sound wave
tendency of an object to resist a change in its state of motion
completely blocking light passage
the bending of light rays
curves in
curves out
the force of gravity on an object
a band of colors produced when light goes through a prism
when one object applies a force to a second
letting all light through