06-26-2025, 12:44 PM
Below is a comprehensive set of answers to all questions and activities from the "Sound Waves" chapter of the Kerala 10th Standard Physics curriculum, as provided in the document. The answers are concise, accurate, and tailored for exam preparation, addressing both theoretical and application-based questions, as well as activities, without referencing specific pages. The responses are structured to cover all questions and activities explicitly mentioned in the chapter.These answers cover all questions and activities in the chapter, providing clear, concise responses with calculations and explanations to aid in exam preparation.
Some sample questions are:
When does the swing complete one oscillation? (when the pendulum starts from O, reaches A and returns to O / when the pendulum starts from O, reaches A, then to B and back to O)
Answer: When the pendulum starts from O, reaches A, then to B, and back to O.
Explanation: One oscillation is complete when the swing returns to its initial position (O) after moving to both extremes (A and B).
What could be the reason that the number of oscillations counted by the child waiting for his turn to swing and the child on the swing were different? Discuss and find out.
Answer: The difference arises because the children may start counting from different points (e.g., O vs. A) or misunderstand when an oscillation is complete. For instance, one might count from O to A
and back to O, while the other counts from A to B and back to A, leading to discrepancies in the number of oscillations recorded.
Explanation: Accurate counting requires agreement on the starting point and understanding that one oscillation involves returning to the initial position in the same direction.
What is the change in frequency when the length of the pendulum increases? (increases / decreases)
Answer: Decreases
Explanation: A longer pendulum has a longer period, reducing the number of oscillations per second (frequency).
For more information on 10th Physics Chapter 1 Sound Waves Textbook Questions and answers click below
Some sample questions are:
When does the swing complete one oscillation? (when the pendulum starts from O, reaches A and returns to O / when the pendulum starts from O, reaches A, then to B and back to O)
Answer: When the pendulum starts from O, reaches A, then to B, and back to O.
Explanation: One oscillation is complete when the swing returns to its initial position (O) after moving to both extremes (A and B).
What could be the reason that the number of oscillations counted by the child waiting for his turn to swing and the child on the swing were different? Discuss and find out.
Answer: The difference arises because the children may start counting from different points (e.g., O vs. A) or misunderstand when an oscillation is complete. For instance, one might count from O to A
and back to O, while the other counts from A to B and back to A, leading to discrepancies in the number of oscillations recorded.
Explanation: Accurate counting requires agreement on the starting point and understanding that one oscillation involves returning to the initial position in the same direction.
What is the change in frequency when the length of the pendulum increases? (increases / decreases)
Answer: Decreases
Explanation: A longer pendulum has a longer period, reducing the number of oscillations per second (frequency).
For more information on 10th Physics Chapter 1 Sound Waves Textbook Questions and answers click below