1
PHYS- WAVESGIZMO ACTUAL EXAM 2026/2027 |
Knowledge Q&A Validation | 100% Correct Mastery Exam
| Pass Guaranteed - A+ Graded
SECTION 1: WAVE PROPERTIES & CHARACTERISTICS
(Questions 1-12)
Q1. The distance between two consecutive crests of a wave is defined as:
A. Amplitude
B. Frequency
C. Wavelength
D. Period
Correct Answer: C
Rationale: Wavelength (λ) is the spatial period of a wave—the distance over which
the wave's shape repeats, measured crest-to-crest or trough-to-trough. Amplitude
(A) is maximum displacement from equilibrium, frequency (B) is cycles per second,
and period (D) is time for one complete cycle.
Q2. A wave completes 20 oscillations in 5 seconds. The frequency of this wave is:
A. 0.25 Hz
B. 4 Hz
C. 100 Hz
D. 25 Hz
Correct Answer: B
Rationale: Frequency (f) = number of cycles / time = 20 cycles / 5 s = 4 Hz. Option A
,2
uses time/cycles (period), C multiplies instead of dividing, and D incorrectly uses 20 +
5.
Q3. If a wave has a frequency of 2 Hz, its period is:
A. 0.5 s
B. 2 s
C. 0.2 s
D. 4 s
Correct Answer: A
Rationale: Period (T) and frequency are reciprocals: T = 1/f = 1/2 = 0.5 s. Option B
confuses period with frequency, C miscalculates by a factor of 10, and D incorrectly
doubles the frequency.
Q4. The maximum displacement of a particle from its equilibrium position in a wave
is called:
A. Wavelength
B. Frequency
C. Amplitude
D. Wave speed
Correct Answer: C
Rationale: Amplitude is the maximum displacement or distance moved by a point on
a vibrating body or wave measured from its equilibrium position. Wavelength (A) is
spatial period, frequency (B) is temporal rate, and wave speed (D) is distance traveled
per unit time.
Q5. A wave travels at 12 m/s with a wavelength of 3 m. Using the wave equation v =
fλ, the frequency is:
, 3
A. 36 Hz
B. 4 Hz
C. 0.25 Hz
D. 15 Hz
Correct Answer: B
Rationale: Rearranging v = fλ gives f = v/λ = 12 m/s ÷ 3 m = 4 Hz. Option A
multiplies instead of dividing, C inverts the relationship, and D incorrectly adds the
values.
Q6. In the WavesGizmo simulation, increasing the amplitude of a transverse wave
while keeping frequency constant will:
A. Increase the wavelength
B. Increase the wave speed
C. Increase the maximum displacement of particles from equilibrium
D. Decrease the period
Correct Answer: C
Rationale: Amplitude directly measures maximum displacement from equilibrium. In
the Gizmo, amplitude changes only affect energy carried by the wave, not
wavelength (A), wave speed (B), or period (D)—these depend on medium properties
and frequency.
Q7. The SI unit for frequency is:
A. Meters (m)
B. Seconds (s)
C. Hertz (Hz)
D. Meters per second (m/s)
Correct Answer: C
Rationale: Frequency is measured in Hertz (Hz), equivalent to cycles per second (s⁻¹).
PHYS- WAVESGIZMO ACTUAL EXAM 2026/2027 |
Knowledge Q&A Validation | 100% Correct Mastery Exam
| Pass Guaranteed - A+ Graded
SECTION 1: WAVE PROPERTIES & CHARACTERISTICS
(Questions 1-12)
Q1. The distance between two consecutive crests of a wave is defined as:
A. Amplitude
B. Frequency
C. Wavelength
D. Period
Correct Answer: C
Rationale: Wavelength (λ) is the spatial period of a wave—the distance over which
the wave's shape repeats, measured crest-to-crest or trough-to-trough. Amplitude
(A) is maximum displacement from equilibrium, frequency (B) is cycles per second,
and period (D) is time for one complete cycle.
Q2. A wave completes 20 oscillations in 5 seconds. The frequency of this wave is:
A. 0.25 Hz
B. 4 Hz
C. 100 Hz
D. 25 Hz
Correct Answer: B
Rationale: Frequency (f) = number of cycles / time = 20 cycles / 5 s = 4 Hz. Option A
,2
uses time/cycles (period), C multiplies instead of dividing, and D incorrectly uses 20 +
5.
Q3. If a wave has a frequency of 2 Hz, its period is:
A. 0.5 s
B. 2 s
C. 0.2 s
D. 4 s
Correct Answer: A
Rationale: Period (T) and frequency are reciprocals: T = 1/f = 1/2 = 0.5 s. Option B
confuses period with frequency, C miscalculates by a factor of 10, and D incorrectly
doubles the frequency.
Q4. The maximum displacement of a particle from its equilibrium position in a wave
is called:
A. Wavelength
B. Frequency
C. Amplitude
D. Wave speed
Correct Answer: C
Rationale: Amplitude is the maximum displacement or distance moved by a point on
a vibrating body or wave measured from its equilibrium position. Wavelength (A) is
spatial period, frequency (B) is temporal rate, and wave speed (D) is distance traveled
per unit time.
Q5. A wave travels at 12 m/s with a wavelength of 3 m. Using the wave equation v =
fλ, the frequency is:
, 3
A. 36 Hz
B. 4 Hz
C. 0.25 Hz
D. 15 Hz
Correct Answer: B
Rationale: Rearranging v = fλ gives f = v/λ = 12 m/s ÷ 3 m = 4 Hz. Option A
multiplies instead of dividing, C inverts the relationship, and D incorrectly adds the
values.
Q6. In the WavesGizmo simulation, increasing the amplitude of a transverse wave
while keeping frequency constant will:
A. Increase the wavelength
B. Increase the wave speed
C. Increase the maximum displacement of particles from equilibrium
D. Decrease the period
Correct Answer: C
Rationale: Amplitude directly measures maximum displacement from equilibrium. In
the Gizmo, amplitude changes only affect energy carried by the wave, not
wavelength (A), wave speed (B), or period (D)—these depend on medium properties
and frequency.
Q7. The SI unit for frequency is:
A. Meters (m)
B. Seconds (s)
C. Hertz (Hz)
D. Meters per second (m/s)
Correct Answer: C
Rationale: Frequency is measured in Hertz (Hz), equivalent to cycles per second (s⁻¹).
