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Sound investigations — Homework
Use speed = 340 m/s for sound in air. Remember an echo travels a round trip.
- 1.An echo returns 3 s after a shout. Find the distance to the wall.
- 2.An echo returns 0.4 s after a clap. Find the distance to the wall.
- 3.Why does sound take a noticeable time to travel, unlike light, which seems instant over short distances?
- 4.A bee's buzz has a much higher pitch than a lion's roar. Which has the higher frequency sound wave?
- 5.Explain why a vacuum-sealed jar makes a ticking clock inside it get quieter as the air is pumped out.
🌲 Homeschool of the FutureEighth Grade · Science · week 20 homework