Sound
ICSE · Class 7 · Physics
Practice quiz for Sound — ICSE Class 7 Physics. MCQs and questions with answers to test your preparation.
Interactive on Super Tutor
Studying Sound? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for practice quiz and more.
1,000+ Class 7 students started this chapter today
Quick Quiz: Sound
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
A sound pulse travels 660 m in 2 s in air. What is the speed of sound?
A thunder sound is heard 2.5 s after lightning is seen. If the speed of sound is 330 m/s, how far away is the lightning?
An echo is heard after 0.1 s. If sound travels at 330 m/s in air, what is the one-way distance to the reflecting surface?
Sound takes 0.1 s to travel to a wall and return as an echo. If the wall is 16.5 m away, what is the speed of sound?
Sample Questions
A sound travels 1500 m in water in 1 s. How many times faster is sound in water than in air if sound in air is 330 m/s?
Show answer
About 4.5 times
Speed in water = 1500 m/s and in air = 330 m/s. The ratio is 1500/330 ≈ 4.5. So sound is about 4.5 times faster in water.
Sound travels 5960 m in steel in 1 s and 330 m in air in 1 s. How much farther does sound travel in steel than in air in the same 1 s?
Show answer
5630 m
Subtract the distances covered in 1 s. 5960 m - 330 m = 5630 m.
A clock pendulum makes 1 vibration in 2 s. How many vibrations does it make in 10 s, and what is its frequency?
Show answer
5 vibrations, 0.5 Hz
If 1 vibration takes 2 s, then in 10 s the number of vibrations is 10/2 = 5. Frequency is 5/10 = 0.5 Hz.
A vibrating body completes 12 vibrations in 3 s. What is its frequency?
Show answer
4 Hz
Frequency = number of vibrations per second. So f = 12/3 = 4 Hz.
+66 more questions available
Practice AllFrequently Asked Questions
What are the important topics in Sound for ICSE Class 7 Physics?
How to score full marks in Sound — ICSE Class 7 Physics?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Sound
Important Questions
Practice with board exam-style questions
Revision Notes
Key points for last-minute revision
Formula Sheet
All formulas in one place
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect visually
Study Plan
Step-by-step plan to ace this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full Sound chapter — for free.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for ICSE Class 7 Physics.