Sound Wave Experiments

The video explores factors influencing the speed of sound, such as temperature, air pressure, and the medium through which it travels. Sound travels faster in solids and liquids due to closer particle arrangement. Temperature increases particle kinetic energy, speeding up sound in gases. Air pressure affects sound speed, with denser air at sea level allowing faster travel. The video also explains the relationship between wave speed, frequency, and wavelength, and provides an experiment to measure sound speed using a stopwatch and drum. The video concludes with a recap of key points.

What factors influence the speed of sound in air?

• Wind speed and altitude

• Temperature and air pressure

• Humidity and wind speed

• Light intensity and humidity

Why does sound travel faster in solids compared to gases?

• Solids are heavier

• Gases have higher temperatures

• Particles in solids are closer together

• Solids have more energy

How does an increase in temperature affect the speed of sound in a gas?

• It makes the speed constant

• It increases the speed

• It has no effect

• It decreases the speed

What happens to the wavelength of a sound wave as it speeds up in a different medium?

• The wavelength increases

• The wavelength remains the same

• The wavelength decreases

• The wavelength becomes zero

What is a possible reason for sound traveling faster at sea level compared to higher altitudes?

• More densely packed air particles

• Stronger winds at sea level

• Higher humidity at sea level

• Higher temperatures at sea level

Which of the following is true about the frequency of a sound wave when it changes medium?

• The frequency becomes zero

• The frequency increases

• The frequency remains constant

• The frequency decreases

In the experiment to measure sound speed, why might the calculated speed differ from the expected 340 m/s?

• The stopwatch was too fast

• The drum was too loud

• Temperature or altitude differences

• The distance was too short