Focus On Life Science: California Grade 7

Lesson 1: Sound

Standards Check

1.
_____ is how high or low a sound is. 5.g
A)frequency
B)pitch
C)wavelength
D)amplitude
2.
Sounds occur as a result of the ______ of molecules. 5.g
A)frequency
B)wavelength
C)vibration
D)amplitude
3.
The _______ of a wave is the number of wavelengths that pass by a point each second. 5.g
A)intensity
B)wavelength
C)pitch
D)frequency
4.
Which of the following are units for measuring frequency? 5.g
A)meters
B)decibels
C)hertz
D)meters/second
5.
A _______ wave causes particles in matter to move back and forth along the same direction in which the wave travels. 5.g
A)compressional
B)transverse
C)seismic
D)radio
6.
A __________ is a repeating disturbance that transfers energy through matter or open space. 5.g
A)frequency
B)medium
C)wave
D)conductor
7.
Sound waves are __________ waves. 5.g
A)molecular
B)transverse
C)radio
D)compressional
8.
What is the region of a compressional wave where particles are far apart called? 5.g
A)crest
B)trough
C)rarefaction
D)rest position
9.
__________ is a measure of the energy in a wave. 5.g
A)Amplitude
B)Frequency
C)Wave velocity
D)Wavelength
10.
"Which of the following are units for measuring intensity? " 5.g
A)meters
B)hertz
C)meters/second
D)decibels
Grade 7
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