Understanding Sound Waves

What is the primary characteristic of a wave?

• It transfers matter.

• It transfers energy.

• It remains stationary.

• It changes the medium.

Through which of the following can sound travel?

• Only through air

• Only through water

• Through gases, liquids, and solids

• Only through solids

How do sound waves propagate through a medium?

• In a zigzag pattern

• Perpendicularly to the wave direction

• Parallel to the wave direction

• In a circular motion

What does amplitude in a sound wave correspond to?

• Pitch

• Speed

• Loudness

• Frequency

What is the range of frequencies that humans can typically hear?

• 40 Hz to 40,000 Hz

• 20 Hz to 20,000 Hz

• 30 Hz to 30,000 Hz

• 10 Hz to 10,000 Hz

What property of sound affects its pitch?

• Medium

• Amplitude

• Speed

• Frequency

How does the speed of sound in water compare to that in air?

• It does not travel in water.

• It is faster in water.

• It is slower in water.

• It is the same in both.

What phenomenon allows bats to navigate using sound?

• Reflection

• Sonar

• Echolocation

• Ultrasound

What is the speed of sound in air approximately?

• 340 meters per second

• 760 meters per second

• 1000 meters per second

• 500 meters per second

What is the purpose of using ultrasound in medical imaging?

• To amplify sound

• To detect sound frequencies

• To measure blood pressure

• To create images of internal body structures