Sound
Science · Grade 8 · Week 13 · 25 questions
Sound is a vibration that travels through air, water, and solids as waves. Understanding sound explains how we hear, how musical instruments work, and why echoes happen.
What you'll practise
- Explain how sound is produced and travels
- Describe properties of sound waves
- Understand pitch, loudness, and frequency
- Explain echoes, reflection, and absorption of sound
All 25 questions in this Sound quiz
Grade 8 Science — Sound: 25 practice questions with instant scoring and explanations.
- What is sound?
- What causes sound production?
- What is frequency in sound?
- What is amplitude in sound?
- Which factor determines the loudness (or intensity) of sound?
- What is pitch in sound?
- How do frequency and pitch relate to each other?
- What is the audible range for humans?
- What are sounds above 20,000 Hz called?
- What are sounds below 20 Hz called?
- Which animals can hear ultrasound?
- What is noise pollution?
- What are the effects of noise pollution?
- What is the structure of the human ear?
- What is the function of the outer ear?
- What is the eardrum?
- What is the function of the three tiny bones (ossicles) in the middle ear?
- What is the cochlea?
- How does the inner ear convert sound vibrations to nerve signals?
- What is the speed of sound in air at room temperature?
- In which medium is the speed of sound the highest?
- What is sound travel like in vacuum?
- What is echo?
- What is the minimum distance required to hear an echo?
- What is reverberation?
Question 1 of 250 correct so far