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FREE PHYSICAL SCIENCE AND STUDY GAMES ABOUT
WAVES VOCABULARY EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -33 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: Rarefaction
Answer:
point on a medium through which a longitudinal wave is traveling that has the minimum density (region where the coils are spread apart, maximizing the distance between coils)
Question 2: Doppler Effect
Answer:
phenomenon of a change in the observed frequency of a wave, sound or light, that occurs when the source and observer are in motion relative to each other
Question 3: Ultraviolet Waves
Answer:
electromagnetic waves that have shorter wavelengths than visible light
Question 4: Electromagnetic Spectrum
Answer:
continuous range of frequencies that electromagnetic waves exist. The longer wavelength, lower frequency regions are located on the far left of the spectrum and the shorter wavelength, higher frequency regions are on the far right
Question 5: Diffraction
Answer:
wave passes through a hole or moves past a barrier and spreads out in the region beyond the hole or barrier
Question 6: Waves
Answer:
disturbances that repeat the same cycle of motion and transfer energy through matter or empty space
Question 7: Period
Answer:
time it takes to complete one full cycle
Question 8: Photons
Answer:
tiny packets of energy
Question 9: Longitudinal wave
Answer:
wave in which the particles of the medium are displaced in a direction parallel to the direction of energy transport
Question 10: Wavelength
Answer:
distance between two consecutive crests or troughs of a wave
Question 11: Gamma Rays
Answer:
electromagnetic waves that have the smallest wavelengths and the most energy of any wave in the electromagnetic spectrum
Question 12: Visible Light Waves
Answer:
portion of the electromagnetic spectrum that we can see
Question 13: Compression
Answer:
point on a medium through which a longitudinal wave is traveling that has the maximum density (region where the coils are pressed together in a small amount of space)
Question 14: X-rays
Answer:
electromagnetic waves that have higher energy and much shorter wavelengths than ultraviolet light
Question 15: Constructive Interference
Answer:
where interfering waves have a displacement in the same direction resulting in a larger amplitude
Question 16: Crest
Answer:
highest point within a cycle of a wave
Question 17: Trough
Answer:
lowest point within a cycle of a wave
Question 18: Pitch
Answer:
distinctive quality of a sound, dependent primarily on the frequency of the sound waves produced by its source
Question 19: Amplitude
Answer:
distance from rest to crest or rest to trough (maximum amount of displacement of a particle on the medium from its rest position)
Question 20: Reflection
Answer:
when a wave hits an object that it cannot pass through or reaches the boundary of the medium of transmission; the return of the wave as it bounces off the object or medium boundary
Question 21: Transverse wave
Answer:
wave in which the particles of the medium are displaced in a direction perpendicular to the direction of energy transport
Question 22: Interference
Answer:
when two or more waves arrive at the same point at the same time. (Waves combine to produce a single wave with different properties from the original waves)
Question 23: Radio waves
Answer:
electromagnetic waves that have the longest wavelengths, lowest frequency, and least amount of energy in the electromagnetic spectrum
Question 24: Microwaves
Answer:
electromagnetic waves found at the higher frequency end of the radio waves on the electromagnetic spectrum
Question 25: Destructive Interference
Answer:
where interfering waves have a displacement in the opposite direction resulting in a smaller amplitude
Question 26: Refraction
Answer:
wave passes from one medium into another at an angle and bends (changes direction) due to a change in speed
Question 27: Hertz
Answer:
unit of frequency equal to one cycle per second
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