Which sequence correctly describes how a drum produces sound that you hear?

drum skin vibrates -> air compressions and rarefactions -> ear detects them

Which best explains why sound cannot be used to communicate directly between two spacecraft in open space?

space is essentially a vacuum with no medium to carry sound

Class 9 · Science · Physics

Sound Waves: Characteristics and Applications MCQs

Take an interactive Sound Waves: Characteristics and Applications quiz for Class 9 Science - tap an answer for instant feedback and a step-by-step solution. These are a few sample questions; practice the full Sound Waves: Characteristics and Applications set free on the RankByte app.

Topics covered

Production and Propagation of SoundCharacteristics of a Sound WaveSpeed of Sound (v = f lambda)Reflection of Sound and Echo

Practice Sound Waves: Characteristics and Applications by topic

Focused MCQ quizzes for each topic.

Characteristics of a Sound Wave Production and Propagation of Sound Reflection of Sound and Echo Speed of Sound (v = f lambda)

Sound Waves: Characteristics and ApplicationsQuiz - Solve & Score

A few sample questions with instant answers and solutions - the full set is in the app.

Q1. Which sequence correctly describes how a drum produces sound that you hear?
- A.drum skin vibrates -> air compressions and rarefactions -> ear detects them
- B.ear vibrates first -> air -> drum
- C.light from the drum -> air -> ear
- D.drum stays still -> air moves -> sound
Answer: A. drum skin vibrates -> air compressions and rarefactions -> ear detects them
Q2. Which best explains why sound cannot be used to communicate directly between two spacecraft in open space?
- A.space is essentially a vacuum with no medium to carry sound
- B.sound travels too slowly in space
- C.space is too cold for sound
- D.the spacecraft block all sound
Answer: A. space is essentially a vacuum with no medium to carry sound
Q3. Which is described: 'produced by a vibrating object'?
- A.Sound
- B.Vacuum
- C.Longitudinal wave
- D.Compression
Answer: A. Sound