Sound And Wave Unit Test

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Quizzes Created: 1 | Total Attempts: 250
| Attempts: 251
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  • 1/9 Questions

    The ______________ is the height of the wave.

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Sound And Wave Unit Test - Quiz
About This Quiz

The 'Sound and Wave unit Test' assesses understanding of key concepts in wave physics and acoustics. It covers amplitude, wavelength, wave equations, and biological applications like echolocation in animals, sharpening both theoretical and practical understanding of sound and waves.

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  • 2. 

    The _____________ is the distance between two crests or two troughs.

    Explanation
    The wavelength refers to the distance between two crests or two troughs. It is a measurement of the length of one complete wave cycle. In other words, it represents the distance traveled by a wave in one complete oscillation. Wavelength is an important concept in understanding various wave phenomena, such as light waves, sound waves, and electromagnetic waves. It is commonly represented by the Greek letter lambda (λ) and is measured in meters or other units of length.

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  • 3. 

    What is Red Shift?

    Explanation
    Red shift refers to the phenomenon in which the frequency of light or other electromagnetic waves appears to decrease. This occurs when an object, such as a star or galaxy, is moving away from an observer. As the object moves away, the waves get stretched, causing a decrease in frequency. This shift towards longer wavelengths is a key piece of evidence for the expansion of the universe and is commonly used in astronomy to measure the distance and velocity of celestial objects.

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  • 4. 

    What is the equation for finding the frequency of a wave?

    Explanation
    The equation for finding the frequency of a wave is 1/period. Frequency is the number of complete cycles of a wave that occur in one second, while period is the time it takes for one complete cycle. Since frequency is the reciprocal of the period, the equation is 1/period.

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  • 5. 

    What is Blue Shift?

    Explanation
    Blue shift refers to an increase in frequency, specifically in the context of light or other electromagnetic waves. This phenomenon occurs when an object emitting waves is moving towards an observer. As the object moves closer, the waves are compressed, resulting in a higher frequency. This shift towards the higher end of the electromagnetic spectrum is perceived as a blue shift because blue light has a higher frequency than red light. Blue shift is commonly observed in astronomy when celestial objects, such as galaxies or stars, are moving towards Earth.

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  • 6. 

    What is the equation for finding the period of a wave?

    Explanation
    The equation for finding the period of a wave is 1/frequency. The period of a wave refers to the time it takes for one complete cycle of the wave to occur. In other words, it is the time it takes for the wave to repeat itself. The period is inversely proportional to the frequency of the wave, meaning that as the frequency increases, the period decreases, and vice versa. Therefore, the equation 1/frequency accurately represents this relationship, where the period is equal to 1 divided by the frequency.

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  • 7. 

    Name two animals that use echolocation.

    Explanation
    Bats, dolphins, and whales are all animals that use echolocation. Echolocation is a biological sonar system that allows these animals to navigate and locate objects in their environment by emitting sounds and listening to the echoes that bounce back. Bats use echolocation to navigate in the dark and locate their prey, while dolphins and whales use it to communicate, navigate, and find food in the water.

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  • 8. 

    What is the Doppler Effect?

    Explanation
    The Doppler Effect refers to the change in frequency of a wave (such as sound or light) due to the relative motion between the source of the wave and the observer. If either the source or the observer is moving towards each other, the frequency appears to increase, resulting in a higher pitch or shorter wavelength. Conversely, if either the source or the observer is moving away from each other, the frequency appears to decrease, resulting in a lower pitch or longer wavelength. This phenomenon is commonly observed in everyday life, such as the change in pitch of a siren as an ambulance approaches and then passes by.

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  • 9. 

    The outer ear is called the _______________.

    • Cochlea

    • Tympanum

    • Pinna

    • Stirrup

    • Ear canal

    Correct Answer
    A. Pinna
    Explanation
    The outer ear is called the pinna. The pinna is the visible part of the ear that is made up of cartilage and skin. Its main function is to collect sound waves and direct them into the ear canal. The pinna also helps to localize sound and protect the ear canal from foreign objects.

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  • Mar 18, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 01, 2010
    Quiz Created by
    Girliebuggie
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