Light and Sound MCQs
Light and Sound MCQs
Try to answer these Light and Sound MCQs and check your understanding of the Light and Sound subject.
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1: Brightness is to light as ________ is to sound
A. Pitch
B. Loudness
C. Frequency
D. Amplitude
E. Wavelength
2: The ____ format synthesizes musical sounds by recording each note’s pitch, length, and volume.
A. RealAudio
B. MIDI
C. WAV
D. SND
3: A ____ is a physical path or a frequency used for signal transmissions.
A. Communications channel
B. Public key encryption
C. Wireless encryption key
D. Cryptographic key
4: Small-range sounds produce ________ sounds.
A. Less complex
B. More complex
C. Louder
D. Higher pitched
5: The speed of sound in the ocean has been measured to determine changes in ________ of the ocean.
A. Temperature
B. More complex
C. Louder
D. Higher pitched
6: What is the speed of light in a vacuum?
A. 300,000 kilometers per hour
B. 300,000 kilometers per second
C. 3,000 kilometers per second
D. 300,000 kilometers per millisecond
7: Which of the following is a form of electromagnetic radiation that humans can see?
A. Infrared light
B. Ultraviolet light
C. X-rays
D. Visible light
8: What is the unit of frequency for sound waves?
A. Decibel
B. Hertz
C. Kilometer
D. Watt
9: When sound waves travel from air to water, what happens to their speed?
A. It remains the same
B. It decreases
C. It increases
D. It depends on the frequency of the sound wave
10: What part of the human ear is responsible for amplifying sound vibrations?
A. Cochlea
B. Eardrum
C. Ear canal
D. Ossicles
11: Which color of light has the longest wavelength?
A. Red
B. Blue
C. Green
D. Violet
12: When light waves pass through a prism, they undergo:
A. Diffraction
B. Polarization
C. Refraction
D. Reflection
13: What is the phenomenon where sound waves bounce off surfaces, such as walls or ceilings, and return to the source of the sound?
A. Refraction
B. Diffraction
C. Reflection
D. Absorption
14: How do we perceive different pitches of sound?
A. By the loudness of the sound wave
B. By the speed of the sound wave
C. By the amplitude of the sound wave
D. By the frequency of the sound wave
15: Which type of waves require a medium, such as air or water, for transmission?
A. Electromagnetic waves
B. Longitudinal waves
C. Transverse waves
D. Mechanical waves
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Light and Sound MCQs
