Speed of Sound and Temperature Quiz: Test Your Knowledge

📚 Quick Study Guide

• 💨 The speed of sound refers to how quickly sound waves travel through a medium.
• 🌡️ Temperature significantly affects the speed of sound; generally, sound travels faster in warmer mediums.
• 💧 The speed of sound also depends on the medium's density and elasticity.
• 🔢 The formula for the speed of sound in dry air is approximately: $v = 331.4 + 0.6T$, where $v$ is the speed of sound in meters per second (m/s), and $T$ is the temperature in Celsius (°C).
• 🧊 At 0°C, the speed of sound in air is approximately 331.4 m/s.
• 🔥 For every degree Celsius increase, the speed of sound increases by approximately 0.6 m/s.

🧪 Practice Quiz

1. What is the primary factor that affects the speed of sound in a gas?
   1. A) Humidity
   2. B) Temperature
   3. C) Pressure
   4. D) Density


2. Approximately, what is the speed of sound in dry air at 0°C?
   1. A) 300 m/s
   2. B) 331.4 m/s
   3. C) 343 m/s
   4. D) 350 m/s


3. If the temperature increases, what happens to the speed of sound in the air?
   1. A) Decreases
   2. B) Increases
   3. C) Remains constant
   4. D) Fluctuates randomly


4. Using the formula $v = 331.4 + 0.6T$, what is the approximate speed of sound at 20°C?
   1. A) 337.4 m/s
   2. B) 343.4 m/s
   3. C) 355.4 m/s
   4. D) 360 m/s


5. Which of the following mediums generally allows sound to travel the fastest?
   1. A) Air
   2. B) Water
   3. C) Steel
   4. D) Vacuum


6. What happens to the speed of sound as the density of a medium increases, assuming elasticity remains constant?
   1. A) Increases
   2. B) Decreases
   3. C) Remains the same
   4. D) Varies unpredictably


7. In which of the following scenarios would sound travel fastest?
   1. A) Cold, dense air
   2. B) Warm, dense air
   3. C) Cold, less dense air
   4. D) Warm, less dense air