Gr 10 Physical Sciences Ch 5: Superposition of pulses
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Questions and Answers

What is the principle of superposition?

  • The principle that states that pulses can never interact with each other.
  • The principle that states that pulses can only travel in one direction.
  • The principle that states that the resulting disturbance is the sum of the individual disturbances from each pulse. (correct)
  • The principle that states that pulses can only interact with each other at their endpoints.

    • What happens to the amplitude of each pulse after they interact with each other?

  • The amplitude of each pulse is reduced to zero.
  • The amplitude of each pulse is doubled.
  • The amplitude of each pulse is halved.
  • The amplitude of each pulse remains unchanged. (correct)

    • What is the result of constructive interference?

  • A pulse with a larger amplitude. (correct)
  • A pulse with a smaller amplitude.
  • A pulse with a negative amplitude.
  • A pulse with a zero amplitude.

    • What is the result of destructive interference?

    <p>A pulse with a smaller amplitude. (A)</p> Signup and view all the answers

    What happens when a crest of one pulse meets the trough of another?

    <p>Destructive interference occurs. (D)</p> Signup and view all the answers

    What is the correct definition of destructive interference?

    <p>When two pulses meet, resulting in a smaller pulse whose amplitude is the sum of the amplitudes of the two initial pulses, with one amplitude being a negative number. (B)</p> Signup and view all the answers

    What is the correct definition of constructive interference?

    <p>When two pulses meet, resulting in a bigger pulse whose amplitude is the sum of the amplitudes of the two initial pulses. (A)</p> Signup and view all the answers

    What is true about the pulses after they interact with each other?

    <p>They continue on their original paths with their amplitudes unchanged. (A)</p> Signup and view all the answers

    What is the primary condition for the principle of superposition to apply?

    <p>The pulses must occupy the same space at the same time. (A)</p> Signup and view all the answers

    Which type of interference occurs when a crest of one pulse meets a trough of another?

    <p>Destructive interference (C)</p> Signup and view all the answers

    What happens to the resulting pulse when two pulses with opposite phases meet?

    <p>The resulting pulse has a smaller amplitude. (D)</p> Signup and view all the answers

    What is the effect of constructive interference on the amplitude of the resulting pulse?

    <p>The amplitude increases. (A)</p> Signup and view all the answers

    What is the net effect on the pulses after they interact with each other?

    <p>Their amplitudes remain unchanged. (A)</p> Signup and view all the answers

    What is the purpose of visualizing superposition?

    <p>To understand the principle of superposition. (C)</p> Signup and view all the answers

    When do two pulses interact with each other?

    <p>When they occupy the same space at the same time. (A)</p> Signup and view all the answers

    What is the result of the interaction between two pulses with the same phase?

    <p>Constructive interference (A)</p> Signup and view all the answers

    When do two pulses exhibit destructive interference?

    <p>When a crest of one pulse meets a trough of another (A)</p> Signup and view all the answers

    What is the sum of the individual disturbances from each pulse according to the principle of superposition?

    <p>The resulting disturbance (A)</p> Signup and view all the answers

    What happens when two pulses with the same phase meet?

    <p>They exhibit constructive interference (A)</p> Signup and view all the answers

    What is the purpose of the principle of superposition?

    <p>To describe the interaction between two pulses (D)</p> Signup and view all the answers

    What is the characteristic of the resulting pulse after constructive interference?

    <p>It has a larger amplitude (D)</p> Signup and view all the answers

    What is a requirement for the principle of superposition to apply?

    <p>The pulses must occupy the same space at the same time (D)</p> Signup and view all the answers

    What is the effect of destructive interference on the amplitude of the resulting pulse?

    <p>It decreases the amplitude (A)</p> Signup and view all the answers

    What is the relationship between the resulting pulse and the individual pulses after they interact?

    <p>The individual pulses are unchanged after the interaction (D)</p> Signup and view all the answers

    What is the primary principle that governs the interaction between two or more pulses traveling through the same medium?

    <p>The principle of superposition (A)</p> Signup and view all the answers

    What happens when a pulse with a large amplitude meets a pulse with a small amplitude, resulting in destructive interference?

    <p>The resulting pulse has an amplitude that is the difference of the individual amplitudes (C)</p> Signup and view all the answers

    What is the characteristic of the resulting pulse when two pulses with the same phase meet and undergo constructive interference?

    <p>The resulting pulse has an amplitude that is the sum of the individual amplitudes (C)</p> Signup and view all the answers

    What is the requirement for the principle of superposition to apply to two pulses?

    <p>The pulses must occupy the same space at the same time (C)</p> Signup and view all the answers

    What is the net effect on the pulses after they interact with each other and undergo constructive interference?

    <p>The pulses continue on their original paths with their amplitudes unchanged (C)</p> Signup and view all the answers

    What is the visual representation of the interaction between two pulses?

    <p>A graph of the pulse amplitudes over time (D)</p> Signup and view all the answers

    What is the primary reason why two pulses with opposite phases exhibit destructive interference?

    <p>The pulses have different phases (C)</p> Signup and view all the answers

    What is the result of the interaction between two pulses with the same amplitude but opposite phases?

    <p>A pulse with an amplitude that is zero (B)</p> Signup and view all the answers

    What happens when the crests of two pulses coincide?

    <p>The resulting pulse has an amplitude that is the sum of the two pulses. (A)</p> Signup and view all the answers

    What is the characteristic of the pulses after they interact with each other?

    <p>Their amplitudes remain unchanged. (B)</p> Signup and view all the answers

    What type of interference occurs when a pulse meets another pulse with an opposite phase?

    <p>Destructive interference (A)</p> Signup and view all the answers

    What is the purpose of visualizing superposition?

    <p>To understand the principle of superposition (A)</p> Signup and view all the answers

    What is the condition for two or more pulses to interact with each other?

    <p>They must occupy the same space at the same time (B)</p> Signup and view all the answers

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