Exploring the Properties of Sound Waves

What type of wave is a sound wave?

• Longitudinal wave

• Transverse wave

• Electromagnetic wave

• Surface wave

In which medium can sound waves not travel?

• Water

• Vacuum

• Air

• Solids

What happens to sound in a sphere-like propagation?

• It spreads out

• It focuses to a point

• It intensifies

• It diminishes

What happens when sound waves encounter an obstacle with a small opening?

• They reflect back only

• They stop completely

• They pass through without change

• They diffract and spread out

What is the effect of sound wave diffraction through a large opening?

• Wave maintains its curvature

• Wave spreads wider

• Wave collapses

• Wave is blocked

What does a megaphone use to amplify sound?

• Diffraction

• Refraction

• Reflection

• Absorption

How does the wavelength change in a closed cylinder compared to an open cylinder?

• It decreases

• It increases

• It becomes zero

• It stays the same

What is the effect of a larger wavelength on the frequency of a sound wave?

• Frequency decreases

• Frequency becomes zero

• Frequency stays the same

• Frequency increases

What is the relationship between frequency and pitch?

• Directly proportional

• Inversely proportional

• Not related

• Randomly related

How does the pitch change when you blow across an open straw compared to a capped straw?

• Pitch depends on the straw's color

• Higher pitch with open straw

• Lower pitch with open straw

• No change in pitch