Which medium allows sound to travel the fastest?

• Glass

• Vacuum

• Water

• Air

What is echolocation primarily used for by animals?

• To find food and navigate

• To attract mates

• To communicate with each other

• To scare predators

What happens when an object travels faster than the speed of sound?

• It becomes invisible

• It creates a sonic boom

• It changes color

• It slows down

Why can a high-pitched sound shatter glass?

• Because it heats the glass

• Because it changes the color of the glass

• Because it vibrates the glass at a specific frequency

• Because it cools the glass

What is one practical application of sound energy in daily life?

• Hydroelectric dams

• Solar panels

• Wind turbines

• Noise-canceling headphones