Understanding Sound Shadows

What phenomenon can make sounds inaudible even when you are close to the source?

• Light shadow

• Sound shadow

• Echo

• Reverberation

What is the main purpose of sound barriers along highways?

• To reduce air pollution

• To increase traffic speed

• To create sound shadows

• To enhance the view

During which historical event did sound shadows play a significant role?

• Industrial Revolution

• American Civil War

• World War I

• French Revolution

Which general was affected by sound shadows during the Battle of Seven Pines?

• General Robert E. Lee

• General Joseph Johnston

• General Ulysses S. Grant

• General William T. Sherman

What atmospheric condition can cause sound waves to curve upward?

• Heavy rainfall

• Low pressure

• High humidity

• Temperature inversion

What happens to sound waves during a temperature inversion?

• They curve towards the ground

• They travel in a straight line

• They disappear completely

• They become louder

How do sound shadows affect marine animals' ability to detect ships?

• They amplify the sound of ships

• They make the sound travel faster

• They have no effect on sound

• They block or redirect the sound

What is a potential solution to prevent ship collisions with marine mammals?

• Reducing ship speed

• Using high-frequency sound devices

• Changing ship routes

• Increasing ship size

What is one way urban planners use sound shadows to manage noise?

• By increasing traffic

• By creating open spaces

• By planting more trees

• By building sound barriers

How do acoustical engineers minimize sound shadows in performance halls?

• By reducing the number of seats

• By designing the space with geometry

• By increasing the volume of performances

• By using sound-absorbing materials