Sound Waves and Their Properties

The video discusses sound waves, focusing on longitudinal and transverse waves. It explains wave characteristics, such as amplitude and wavelength, and explores sound properties like reflection and refraction. The video also highlights how sound behaves differently in various environments, such as bathrooms and open fields, and why concerts are better at night due to sound refraction.

What type of wave is sound primarily considered?

• Transverse wave

• Longitudinal wave

• Surface wave

• Electromagnetic wave

In a transverse wave, how do particles move in relation to the wave's direction?

• Random

• Perpendicular

• Parallel

• Circular

What is the term for the region where coils are spread out in a longitudinal wave?

• Trough

• Compression

• Crest

• Rarefaction

Which of the following is an example of a transverse wave?

• Seismic

• Light

• Sound

• Water

Why do people often feel their voice sounds better in a bathroom?

• The bathroom has better lighting

• The bathroom has multiple reflections of sound

• The bathroom is larger

• The bathroom is quieter

What is the term for the turning back of a wave when it hits a barrier?

• Refraction

• Absorption

• Diffraction

• Reflection

What principle explains why sound is heard better at night during open field concerts?

• Refraction

• Absorption

• Reflection

• Diffraction

During the day, why are sound waves refracted towards the sky?

• The air above is denser

• The air above is less dense

• The air near the surface is cooler

• The air near the surface is hotter

At night, how does the temperature difference affect sound wave refraction?

• Sound waves are refracted towards the earth's surface

• Sound waves are refracted to the sky

• Sound waves are absorbed by the ground

• Sound waves are scattered randomly

What is the effect of sound refraction on sound waves?

• It changes the wave's frequency

• It amplifies the wave

• It bends the wave

• It absorbs the wave