Science Waves, Light & Sound Conceptual 8–9 yrs

Sound Fading with Distance

声音随距离衰减

Description

Recognise that sounds get fainter as the distance from the sound source increases

Mastery Evidence
  • ✓ State that sound gets quieter as distance from the source increases
  • ✓ Describe an observation or investigation demonstrating this pattern
  • ✓ Explain that vibrations spread out and get weaker as they travel further from the source
Assessment Prompt

Can your child explain why a friend's voice gets harder to hear the further away they walk?

Prerequisites 1
Sound Travels Through Materials
科学 · 8–9y
在理解声音随距离衰减之前，必须先知道声音通过介质传播
Unlocks 0

No follow-up topics