First Class science · A.7 · Waves and light
Can you hear it
Sound travels as waves that move through solid objects. Even behind walls, some sound passes through so people can hear each other.
See worked examples
If Ravi hears music from the next room through the wall, what is true?
- Sound goes through walls (right)
- The music stops at the wall
- Only soft sounds go through
A classmate plays a drum in the classroom. Can Ines hear it from outside?
- Yes (right)
- No, windows block all sounds
- Only if they are very close
Felix hears a friend's voice from the other side of the door. What does that show?
- Sound travels through solid things (right)
- The door is open
- Light goes through walls
Tip: Sound travels as waves that move through solid objects. Even behind walls, some sound passes through so people can hear each other.
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