PHYSICS EXAM (ACTUAL 2026) REVIEW | Q&A
LATEST UPDATE | 100% PASS
What is the vertical axis of a graph called?
a. z-axis
b. x-axis
c. y-axis
d. time-axis
y-axis
What is the name of the horizontal axis of a graph?
a. z-axis
b. x-axis
c. y-axis
d. red axis
x-axis
All of the following are true about sound waves except :
,a. They are mechanical
b. They are transverse
c. They carry energy from place to place
d. They generally travel in a straight line
They are transverse
True or false. Frequency is an acoustic variable?
False
True or false. Pressure is an acoustic variable?
True
True or false. Propagation speed is an acoustic variable?
False
True or false. Wavelength is an acoustic variable?
False
,True or false. Voltage is an acoustic variable?
False
True or false. Intensity is an acoustic variable?
False
True or false. Motion of particles in the wave is an acoustic
variable?
True
True or false. Density is an acoustic variable?
True
What are the units of a pressure measurement of an acoustic
wave?
a. Atmospheres (atm)
b. Pascals (Pa)
c. millimeters of mercury (mm Hg)
d. pounds/sq. inch (lb/in^2)
, A, B, C and D
Sound can be characterized as :
a. Energy flowing through a vacuum
b. A variable
c. Cyclical oscillations in certain variables
d. A principle of acoustics
Cyclical oscillations in certain variables
What are the correct units for pressure?
a. lb/in^3
b. Fahrenheit degrees
c. Miles
d. Pa
e. Cm
f. Centigrade degrees
g. lb/in^2
h. kg/m^3
Pa and lb/in^2