1. What is the unit for measuring the amplitude of a sound?
A. Decibel
B. Coulomb
C. Hum
D. Cycles
2. Reading of a barometer going down is an indication of
A. snow
B. storm
C. intense heat
D. rainfall
3. Decibel is the unit for
A. speed of light
B. radio wave frequency
C. intensity of sound
D. intensity of heat
4. One fathom is equal to
A. 6 feet
B. 6 meters
C. 60 feet
D. 100 cm
5. Fathom is the unit of
A. sound
B. depth
C. frequency
D. distance