World 4 · Noise-Cancelling Headphones · 12 min · PRO
Waves add
Superposition and interference
PRO · Acoustics Studio
World 4: Noise-Cancelling Headphones is part of PRO
The first world of Acoustics Studio is free. PRO opens the other 20 lessons in 5 worlds — simulations, quizzes and all.
PRO includes
- All 60 labs — every world, every lesson
- Practice exams and certificates
$8.33/mo, billed yearly ($99.99) · or $39.99 monthly