13. Sound Class 8 Science [LATEST] Solutions Additional Questions With Solutions in English - CBSE Study
NCERT Solutions for Class 8 Science are carefully prepared according to the latest CBSE syllabus and NCERT textbooks to help students understand every concept clearly. These solutions cover all important 13. Sound with detailed explanations and step-by-step answers for better exam preparation. Each Additional Questions With Solutions is explained in simple language so that students can easily grasp the fundamentals and improve their academic performance. The study material is designed to support daily homework, revision practice, and final exam preparation for Class 8 students. With accurate answers, concept clarity, and structured content, these NCERT solutions help learners build confidence and score higher marks in their examinations. Whether you are revising a specific topic or preparing an entire chapter, this resource provides reliable and syllabus-based guidance for complete success in Science.
Class 8 English Medium Science All Chapters:
13. Sound
5. Additional Questions With Solutions
Additiona Questions With Answers
Ques: Write the name of two properties of sound on basis of which sounds can differentiate?
Ans: we differentiate sounds on the basis of their amplitudes and frequencies.
Ques: What is the difference between noise and music? Can music become noise sometimes?
Ans: Unpleasant sounds are called noise. Ex - the sounds produced by horns of buses and trucks.
While, Musical sound is one which is pleasing to the ear. Sound produced by a harmonium is a musical sound. The string of a sitar also gives out a musical sound. Musical sound may be noise if it is too loud.
Ques: What is noise pollution?
Ans: Presence of excessive or unwanted sounds in the environment is called noise pollution.
Ex - sounds of vehicles, explosions including bursting of crackers, machines, loudspeakers etc.
Ques: List sources of noise pollution in your surroundings.
Ans: sounds of vehicles, explosions including bursting of crackers, machines, loudspeakers etc.
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