1. The _________ of a wave is the density of the medium’s particles at the compression of the wave.
2. In which part of the wave are the particles of the medium closer together?
A)rarefactions
B)compressions
C)solids
D)liquids
3. In sound waves, the distance between compressions is called the wavelength.
What is the distance between rarefactions called?
A)speed
B)frequency
C)amplitude
D)wavelength
4) A student takes notes in class.
Sound Waves
I. Created by a vibration
A. Vibration: something that causes air molecules to move
back and forth quickly and steadily
II. Move through a medium
A. Solid
B. Liquid
C. Gas
Which line of her notes contains an error?
A)I
B)I A
C)II B
D)II C
5)Which of these would most likely cause a sound wave?
A)cookies baking
B)milk standing in the bottle
C)a spoon hitting the side of a bowl while mixing
D)butter melting
6)Allison wants to calculate the speed of a sound wave.
Which formula should she use?
A)distance traveled / amplitude
B)number of wavelengths / amplitude
C)number of wavelengths / time
D)distance traveled / time
7)When sound is created, it travels to the ear through a
A)compression.
B)medium.
C)rarefaction.
D)surface.
8) Why do waves move faster at higher temperatures and in a solid phase?
A)There is more energy and the particles are farther apart.
B)There is less energy and the particles are closer together.
C)There is less energy and the particles are farther apart.
D)There is more energy and the particles are closer together.
