1.
What is a wave?
a.
A particle in motion
b.
A disturbance that travels through a
medium
c.
A stationary object
d.
A type of electromagnetic radiation
2.
Which of the following waves requires a medium to
travel through?
a.
Radio waves
b.
Light waves
c.
Sound waves
d.
X-rays
3.
What is the amplitude of a wave?
a.
The distance between two consecutive troughs
b.
The distance between two consecutive crests
c.
The maximum displacement of particles
from their equilibrium position
d.
The speed of the wave
4.
The distance between two consecutive crests of a wave
is called:
a.
Wavelength
b.
Frequency
c.
Amplitude
d.
Period
5.
Which of the following properties of a wave determines
its pitch in the case of sound waves?
a.
Amplitude
b.
Frequency
c.
Wavelength
d.
Speed
6.
The time it takes for one complete wavelength to pass
a point is called:
a.
Frequency
b.
Wavelength
c.
Period
d.
Amplitude
7.
In which direction do transverse waves vibrate?
a.
Parallel to the direction of wave propagation
b.
Perpendicular to the direction of wave
propagation
c.
At an angle of 45 degrees to the direction of wave propagation
d.
In a circular motion
8.
Which type of wave can propagate in a vacuum?
a.
Sound waves
b.
Transverse waves
c.
Longitudinal waves
d.
Electromagnetic waves
9.
When a wave undergoes reflection, what property remains unchanged?
a.
Wavelength
b.
Amplitude
c.
Frequency
d.
Speed
10. Diffraction refers to the
wave property of:
a.
Changing direction when passing through a boundary between two media
b.
Bouncing off a surface at the same angle it arrives
c.
Spreading out when passing through a
narrow opening or around an obstacle
d.
Constructive and destructive interference
11. The number of complete
oscillations or cycles of a wave that occur in one second is called:
a.
Amplitude
b.
Wavelength
c.
Frequency
d.
Velocity
12. The phenomenon of the
bending of waves around obstacles or edges is called:
a.
Reflection
b.
Diffraction
c.
Refraction
d.
Interference
13. The interference pattern
observed when two identical waves overlap in phase is called:
a.
Destructive interference
b.
Constructive interference
c.
Refraction
d.
Diffraction
14. Which type of wave requires
a medium (substance) to travel through?
a.
Transverse wave
b.
Longitudinal wave
c.
Electromagnetic wave
d.
Standing wave
15. The speed of a wave is
determined by its:
a.
Amplitude
b.
Wavelength
c.
Frequency
d.
Energy
16. In a transverse wave, the
particles of the medium move:
a.
In the direction of the wave
b.
Opposite to the direction of the wave
c.
In random directions
d.
In a circular motion
17. The maximum displacement of
a particle from its equilibrium position in a wave is known as:
a.
Frequency
b.
Wavelength
c.
Amplitude
d.
Velocity
18. The speed of a wave is given
by:
a.
Speed = Frequency × Wavelength
b.
Speed = Amplitude × Wavelength
c.
Speed = Frequency ÷ Wavelength
d.
Speed = Amplitude ÷ Frequency
19. Which of the following
statements about longitudinal waves is true?
a.
The particles oscillate perpendicular to the direction of wave
propagation.
b.
Longitudinal waves cannot travel through fluids.
c.
Sound waves are an example of
longitudinal waves.
d.
Longitudinal waves require a vacuum for propagation.
20. When two waves meet and
their amplitudes add together, the resulting phenomenon is called:
a.
Diffraction
b.
Interference
c.
Refraction
d.
Dispersion
21. The change in the apparent
frequency of a wave due to the relative motion between the source and the
observer is known as:
a.
Reflection
b.
Diffraction
c.
Doppler effect
d.
Refraction
22. Which type of wave is
characterized by the particles of the medium moving perpendicular to the
direction of wave propagation?
a.
Transverse wave
b.
Longitudinal wave
c.
Standing wave
d.
Surface wave
23. When a wave travels from one
medium to another and its speed changes, what phenomenon occurs?
a.
Reflection
b.
Diffraction
c.
Interference
d.
Refraction
24. What is the relationship
between the frequency (f) and the period (T) of a wave?
a.
f = T
b.
f = 1/T
c.
f = 2T
d.
f = T2
25. If the frequency of a wave
doubles while its wavelength remains constant, what happens to its speed?
a.
It doubles
b.
It halves
c.
It remains the same
d.
It quadruples
26. A wave has a frequency of
200 Hz and a wavelength of 2 meters. What is the wave's speed?
a.
100 m/s
b.
200 m/s
c.
400 m/s
d.
800 m/s
27. A guitar string has a
fundamental frequency of 440 Hz. If the speed of the wave on the string is 220
m/s, what is the wavelength of the fundamental mode?
a.
0.5 m
b.
1 m
c.
2 m
d.
4 m
28. What is sound?
a.
A form of light
b.
A type of energy
c.
A type of heat
d.
A mechanical wave
29. What is the speed of sound
in air at room temperature (approximately 20°C)?
a.
343 meters per second
b.
300,000,000 meters per second
c.
1500 meters per second
d.
30 meters per second
30. Which of the following
mediums would sound travel the fastest through?
a.
Water
b.
Steel
c.
Air
d.
Vacuum
31. The frequency of a sound
wave determines its:
a.
Loudness
b.
Amplitude
c.
Pitch
d.
Speed
32. What is the unit of
measurement for amplitude?
a.
Hertz
b.
Decibel
c.
Meter
d.
Watt
33. In which state of matter
does sound travel the fastest?
a.
Solid
b.
Liquid
c.
Gas
d.
Sound travels at the same speed in all states of matter
34. What is an echo?
a.
A type of interference pattern
b.
A rarefaction of sound waves
c.
A reflection of sound waves
d.
A type of diffraction
35. What is the range of human
hearing in terms of frequency?
a.
0.1 Hz to 100 Hz
b.
20 Hz to 20,000 Hz
c.
1 kHz to 1 MHz
d.
10 Hz to 100,000 Hz
36. What is the primary mode of energy
transfer in sound propagation?
a.
Conduction
b.
Convection
c.
Radiation
d.
Diffraction
37. The speed of sound in a
medium is most closely related to:
a.
Density of the medium
b.
Temperature of the medium
c.
Pressure of the medium
d.
Viscosity of the medium
38. When sound waves travel from
air to water, what happens to their speed?
a.
It decreases
b.
It increases
c.
It remains the same
d.
It depends on the frequency
39. The lowest frequency of
vibration of a stringed instrument is known as its:
a.
Overtone
b.
Harmonic
c.
Fundamental frequency
d.
Resonant frequency
40. The quality of sound that
distinguishes two sounds of the same pitch and loudness is called:
a.
Frequency
b.
Amplitude
c.
Timbre
d.
Wavelength
41. When a sound wave reflects
from a surface, the angle of incidence is equal to the angle of:
a.
Absorption
b.
Diffraction
c.
Reflection
d.
Refraction
42. Which part of the human ear
amplifies sound vibrations and transmits them to the inner ear?
a.
Eardrum
b.
Cochlea
c.
Auditory nerve
d.
Ossicles
43. The unit of measurement for
sound intensity is the:
a.
Decibel (dB)
b.
Hertz (Hz)
c.
Watt (W)
d.
Joule (J)
44. Which part of the ear is
responsible for transmitting sound vibrations to the inner ear?
a.
Eardrum (tympanic membrane)
b.
Cochlea
c.
Auditory nerve
d.
Pinna
45. Infrasound refers to sound
waves with frequencies:
a.
Above the audible range
b.
Below the audible range
c.
In the ultrasonic range
d.
Exactly at the audible range
46. Which material would be the
best absorber of sound waves?
a.
Smooth, hard surface
b.
Rough, soft surface
c.
Transparent surface
d.
Reflective surface
47. A tuning fork vibrates with
a frequency of 256 Hz. If the speed of sound is 340 m/s, what is the wavelength
of the sound wave produced by the tuning fork?
a.
0.85 m
b.
1.33 m
c.
0.66 m
d.
0.42 m
48. Two sound waves of
frequencies 300 Hz and 500 Hz respectively, have the same wavelength. If the
speed of sound is 340 m/s, what is the wavelength?
a.
0.68 m
b.
0.34 m
c.
1.13 m
d.
0.905 m
49. A sound wave travels in air
with a frequency of 500 Hz. What is the wavelength of this sound wave in air?
(Speed of sound in air is approximately 343 m/s.)
a.
0.686 m
b.
0.686 cm
c.
0.343 m
d.
1.5 m
50. A tuning fork produces a
sound wave with a frequency of 440 Hz. What is the wavelength of the sound wave
in air if the speed of sound is 340 m/s?
a.
0.77 m
b.
0.15 m
c.
0.23 m
d.
1.54 m
51. A sound wave has a
wavelength of 0.2 m and a frequency of 800 Hz. What is the speed of the wave?
a.
400 m/s
b.
160 m/s
c.
1600 m/s
d.
0.25 m/s
52. Two sound waves have
frequencies of 300 Hz and 450 Hz. What is the beat frequency?
a.
150 Hz
b.
750 Hz
c.
1500 Hz
d.
900 Hz
53. A sound wave travels from
air into water. If the frequency of the wave remains constant, what will change?
a.
The speed of the wave
b.
The amplitude of the wave
c.
The wavelength of the wave
d.
The energy of the wave
54. The superposition of two or
more waves can result in a new wave with:
a.
Lower frequency
b.
Higher amplitude
c.
Smaller wavelength
d.
All of the above
55. Two sound waves, A and B,
have the same frequency but different amplitudes. The wave with the higher
amplitude will have:
a.
Higher pitch
b.
Lower pitch
c.
Louder volume
d.
Softer volume
56. The fundamental frequency of
a closed pipe that is 50 cm long is:
a.
85.7 Hz
b.
171.4 Hz
c.
342.8 Hz
d.
428.5 Hz
57. If the amplitude of a sound
wave is doubled, the intensity of the sound will:
a.
Double
b.
Quadruple
c.
Halve
d.
Remain unchanged
58. Two sound waves, one with a
frequency of 300 Hz and another with a frequency of 500 Hz, interfere with each
other. What is the beat frequency?
a.
100 Hz
b.
200 Hz
c.
300 Hz
d.
500 Hz
59. The intensity of a sound
wave is inversely proportional to the square of the distance from the source.
If the intensity is measured as 40 W/m² at a distance of 5 meters, what will be
the intensity at a distance of 10 meters from the source?
a.
10 W/m²
b.
20 W/m²
c.
40 W/m²
d.
80 W/m²
60. The Doppler effect is applicable to which type of
waves?
a) Only sound waves in air.
b) Only light waves in
vacuum.
c)
Both sound and light waves.
d) Only
electromagnetic waves.
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