Sound Waves

At what speed does sound travel in air at sea level and 20 degrees Celsius?

• 5000 meters per second

• 1500 meters per second

• 333 meters per second

• 340 meters per second

How does the arrangement of particles in solids affect the speed of sound?

• Particles are completely free, speeding sound

• Particles are loosely arranged, slowing sound

• Particles are fixed in rows, speeding sound

• Particles are far apart, slowing sound

What happens to the speed of sound when the temperature increases?

• It decreases

• It remains the same

• It increases

• It fluctuates unpredictably

What remains constant when sound enters a different medium?

• Speed

• Wavelength

• Frequency

• Amplitude

How can you measure the speed of sound using a drum and a stopwatch?

• By recording the drum sound and analyzing the waveform

• By counting the number of drum beats per minute

• By measuring the time from seeing the drum hit to hearing the sound

• By timing how long the drum's sound takes to echo back