19_ED_SoundVocab

Energy that travels in waves, requiring a medium (like air, water, or solids) to propagate.

• Sound
• Rarefaction
• Amplitude
• Medium
• Frequency

Answer explanation

Jupiter is a gas giant made primarily of hydrogen and helium. Unlike terrestrial planets that have solid surfaces, gas giants like Jupiter don't have a well-defined solid surface, allowing them to accumulate more mass in a gaseous form. This composition has allowed Jupiter to grow significantly larger than planets with solid surfaces.

The substance (solid, liquid, or gas) through which sound waves travel.

• Medium
• Longitudinal Waves
• Frequency
• Compression
• Harmonics

An area in a sound wave where air molecules are close together, resulting in increased pressure.

• Compression
• Transverse Waves
• Harmonics
• Rarefaction
• Timbre

An area in a sound wave where air molecules are spread apart, resulting in decreased pressure.

• Rarefaction
• Reflection
• Timbre
• Longitudinal Waves
• Speed of Sound

Waves in which the medium moves back and forth in the same direction as the wave travels, as seen in sound waves.

• Longitudinal Waves
• Refraction
• Speed of Sound
• Transverse Waves
• Echo

Waves in which the medium moves up and down perpendicular to the direction of the wave, as seen in ocean waves.

• Transverse Waves
• Diffraction
• Echo
• Reflection
• SONAR

The bouncing back of sound waves off a surface, which can create echoes.

• Reflection
• Whispering Gallery
• SONAR
• Refraction
• Ultrasound

The bending of sound waves as they pass from one medium to another, changing their speed.

• Refraction
• Amplitude
• Ultrasound
• Diffraction
• Communication

The bending of sound waves around obstacles, allowing sound to be heard even when the source is not in direct line of sight.

• Diffraction
• Frequency
• Communication
• Whispering Gallery
• Acoustic

A space designed to enhance sound transmission through reflection off curved surfaces, allowing sounds to travel long distances.

• Whispering Gallery
• Harmonics
• Acoustic
• Amplitude
• Transverse Waves (required in all cases except open-ended & draw questions)