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IIST — free MCQ practice

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IIST subjects

Physics (30)

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Defence EntranceOscillations and PendulumsPhysics

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A child on a swing repeats the same motion at regular intervals. That motion is:Read the answer and worked solution →The time taken to complete one full oscillation is the:Read the answer and worked solution →The number of oscillations per unit time is called the:Read the answer and worked solution →The range of human hearing is quoted as 20 Hz up to:Read the answer and worked solution →

Worked practice questions

A child on a swing repeats the same motion at regular intervals. That motion is:

  1. Periodic
  2. Pyramidal
  3. Peripheral
  4. Persuasive
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Correct answer: A. Periodic

1. The pattern comes back again and again. 2. The gap between repeats is fixed. 3. That motion is periodic. _Source: OpenStax University Physics Volume 1, Chapter 15, Oscillations._

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The time taken to complete one full oscillation is the:

  1. Pattern
  2. Period
  3. Pendant
  4. Portion
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Correct answer: B. Period

1. It is measured in seconds. 2. One complete swing defines it. 3. That time is the period. _Source: OpenStax University Physics Volume 1, Chapter 15, Oscillations._

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The number of oscillations per unit time is called the:

  1. Frequency
  2. Fragrance
  3. Fragility
  4. Formality
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Correct answer: A. Frequency

1. It counts events in one second. 2. It is the inverse of the period. 3. That count is the frequency. _Source: OpenStax University Physics Volume 1, Chapter 15, Oscillations._

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