Understanding Sound

What is the primary source of sound?

• Magnetic fields

• Static electricity

• Vibrating objects

• Light waves

How can you physically feel sound?

• By touching a vibrating object

• By looking at a light source

• By tasting food

• By smelling a flower

What are sound waves made of?

• Photons

• Ions

• Molecules

• Atoms

How do sound waves travel?

• In a zigzag pattern

• Back and forth like playing catch

• In a circular motion

• In a straight line

Why can't sound travel through a vacuum?

• Because there is no light

• Because it is too cold

• Because there is no matter to vibrate

• Because it is too dark

Through which medium does sound travel the fastest?

• Vacuum

• Solids like stone

• Water

• Air

What is the scientific study of sound called?

• Optics

• Electromagnetism

• Acoustics

• Thermodynamics

How is the loudness of sound measured?

• In hertz

• In watts

• In lumens

• In decibels

What is the difference between sound and noise?

• Sound is pleasant, noise is not

• Noise is organized, sound is not

• Sound is louder than noise

• Noise is a type of sound

What is the fear of noise called?

• Acoustic phobia

• Hydrophobia

• Photophobia

• Claustrophobia