PHY 102 WEEK 4 EXAM FINAL PAPER 2026 FULL
SOLUTION GRADED A+
◉ The amplitude of a particular wave is 1 meter. The top-to-bottom
distance of the disturbance is Answer: 2m
◉ A transformer has 395 loops in the the primary coil and 245 loops
in the secondary coil. If the input current is 3.3 A, what is the output
current of the transformer in Amps? Answer: 5.3
◉ A 60-vibration-per-second wave travels 30 meters in 1 second. Its
frequency is
A. 30 hertz and it travels at 60 m/s.
B. 60 hertz and it travels at 30 m/s.
C. 1800 hertz and it travels at 2 m/s.
D. 30 hertz and it travels at 30 m/s
E. 60 hertz and it travels at 60 m/s
Reset Selection Answer: 60 hertz and it travels at 30 m/s
◉ During a single period, the distance traveled by a wave is
A. one-half wavelength.
B. one wavelength.
, C. two wavelengths.
D. four wavelengths. Answer: one wavelength
◉ If at a concert you run toward the orchestra, the frequency of the
sound you hear will be
A. decreased.
B. increased.
C. neither decreased nor increased.
Reset Selection Answer: incresead
◉ Which of the following is a property of light waves, but not of
sound waves?
A. frequency
B. wavelength
C. amplitude
D. polarization
E. none of these Answer: polarization
◉ If a visible light signal and a radio signal were emitted
simultaneously from Alpha Centauri (a distant star), the first to
reach Earth would be the
A. radio signal.
B. visible light signal.
SOLUTION GRADED A+
◉ The amplitude of a particular wave is 1 meter. The top-to-bottom
distance of the disturbance is Answer: 2m
◉ A transformer has 395 loops in the the primary coil and 245 loops
in the secondary coil. If the input current is 3.3 A, what is the output
current of the transformer in Amps? Answer: 5.3
◉ A 60-vibration-per-second wave travels 30 meters in 1 second. Its
frequency is
A. 30 hertz and it travels at 60 m/s.
B. 60 hertz and it travels at 30 m/s.
C. 1800 hertz and it travels at 2 m/s.
D. 30 hertz and it travels at 30 m/s
E. 60 hertz and it travels at 60 m/s
Reset Selection Answer: 60 hertz and it travels at 30 m/s
◉ During a single period, the distance traveled by a wave is
A. one-half wavelength.
B. one wavelength.
, C. two wavelengths.
D. four wavelengths. Answer: one wavelength
◉ If at a concert you run toward the orchestra, the frequency of the
sound you hear will be
A. decreased.
B. increased.
C. neither decreased nor increased.
Reset Selection Answer: incresead
◉ Which of the following is a property of light waves, but not of
sound waves?
A. frequency
B. wavelength
C. amplitude
D. polarization
E. none of these Answer: polarization
◉ If a visible light signal and a radio signal were emitted
simultaneously from Alpha Centauri (a distant star), the first to
reach Earth would be the
A. radio signal.
B. visible light signal.
