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1️⃣ How does sound travel?
through vibrations in a medium
2️⃣ What does sound need to travel?
medium
what's a medium?
the matter sound travels though like solid liquid gas
3️⃣ Where does sound travel the fastest: air, water, or solids?
solid
4️⃣ Can sound travel in space? why?
No, because there is no medium.
6️⃣ What part of the ear helps us hear sound?
eardrum
8️⃣ What makes a sound louder?
Stronger vibrations.
🔟 Why does tapping on a table sound louder when you put your ear on it?
Because sound travels faster through solids than air.
2️⃣ Can sound travel through water?
yes
9️⃣ What do we call sound that bounces back?
An echo.
🔟 Why does sound travel fastest in solids?
Because the particles are closer together.
2️⃣ Which animal is famous for using echolocation?
bats, whales
7️⃣ Why do bats use echolocation?
To find food in the dark.
8️⃣ Which is better for echolocation: a hard wall or a soft curtain?
wall because it bounces better
What is pitch?
How high or low a sound is.)
If an object vibrates faster, what happens to the pitch?
gets higher
