Осцилације - тест 1

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| By Svetlanadjikic
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Svetlanadjikic
Community Contributor
Quizzes Created: 1 | Total Attempts: 392
Questions: 10 | Attempts: 392

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Questions and Answers
  • 1. 

    Шта би требало да урадимо клатну које осцилује да би му се повећао период осциловања? Заокружи слово испред тачног одговора.

    • A.

      требало би да смањимо дужину клатна

    • B.

      требало би да повећамо масу клатна

    • C.

      требало би да смањимо масу клатна

    • D.

      требало би да повећамо дужину клатна

    Correct Answer
    D. требало би да повећамо дужину клатна
    Explanation
    To increase the period of oscillation of a pendulum, we should increase the length of the pendulum. This is because the period of a pendulum is directly proportional to the square root of its length. By increasing the length, the pendulum takes longer to swing back and forth, resulting in a longer period of oscillation.

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  • 2. 

    Ако се повећа дужина математичког клатна 4 пута за колико му се повећа период осциловања?

    • A.

      4

    • B.

      2

    • C.

      16

    • D.

      3

    Correct Answer
    B. 2
    Explanation
    When the length of a mathematical pendulum is increased four times, the period of oscillation will be doubled. This is because the period of a pendulum is directly proportional to the square root of its length. Therefore, if the length is increased four times, the square root of the length will be doubled, resulting in a doubled period of oscillation.

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  • 3. 

    На слици је приказан талас који се простире дуж конопца. Брзина таласа је 30 метара у секунди. Колики је период таласа.

    • A.

      5 s

    • B.

      90 s

    • C.

      0,2 s

    • D.

      10 s

    Correct Answer
    C. 0,2 s
  • 4. 

    На слици је приказан трансверзални талас који се простире кроз неку средину и једна честица А те средине. Стрелицама су означени правац и смер кретања те честице. На којој слици је исправно приказано кретање честице А?  

    • A.

      на слици 1

    • B.

      на слици 2

    • C.

      на слици3

    • D.

      на слици 4

    Correct Answer
    A. на слици 1
  • 5. 

    Како се зове време за које љуљшка оде од највише тачке А до тачке Б и поново се врати у тачку А.

    • A.

      фреквенца

    • B.

      период

    • C.

      амплитуда

    • D.

      елонгација

    Correct Answer
    B. период
    Explanation
    The correct answer is "период". In physics, the term "period" refers to the time it takes for an object or a wave to complete one full cycle of motion or oscillation. In this context, the question is asking for the name of the time it takes for a swing to go from its highest point A to point B and back to point A again. This is commonly known as the period of the swing.

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  • 6. 

    Лонгитудинални механички таласи се простиру

    • A.

      кроз супстанце свих агрегатних стања

    • B.

      само кроз флуиде

    • C.

      само кроз чврста тела

    Correct Answer
    A. кроз супстанце свих агрегатних стања
    Explanation
    Longitudinal mechanical waves can propagate through substances in all states of matter, including fluids and solids. This means that they can travel through gases, liquids, and solids, unlike transverse waves that can only travel through solids. Therefore, the correct answer is that longitudinal mechanical waves can propagate through substances in all states of matter.

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  • 7. 

    Тело закачено о опругу осцилује између тачака А и В као на слици. Ако тело растојање између тачака А и В пређе за 0,1 s, колики је период осциловања?

    • A.

      0,2s

    • B.

      0,1s

    • C.

      5s

    • D.

      10s

    Correct Answer
    A. 0,2s
    Explanation
    The period of oscillation is the time it takes for the body to complete one full cycle of oscillation. In this case, the body oscillates between points A and B. If the distance between points A and B is covered in 0.1s, it means that the body completes half of the oscillation in 0.1s. Therefore, the full oscillation will take twice that time, which is 0.2s.

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  • 8. 

    Најмања брзина простирања звука постиже се у    

    • A.

      чврстим телима

    • B.

      течностима

    • C.

      гасовима

    • D.

      вакууму

    Correct Answer
    C. гасовима
    Explanation
    The speed of sound is the slowest in gases compared to solids, liquids, and vacuum. In gases, the molecules are far apart and have more freedom to move, which leads to a slower propagation of sound waves. In solids and liquids, the molecules are closely packed, allowing sound waves to travel faster. In a vacuum, there are no molecules to transmit sound waves, so there is no speed of sound.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 21, 2014
    Quiz Created by
    Svetlanadjikic
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