Properties of Sound Answers

Evelynn is measuring the pitch of a piano note. What unit of measurement is she most likely recording her value in?

Four different observers are standing in a straight line on a street and hear a siren from a police car. Each person recorded their observations in the chart shown.

What increases as sound waves increase in frequency?

Which refers to the amount of energy in a sound wave per unit of time and is also related to the loudness of a sound?

Nico vibrates an object at different frequencies. At a certain frequency, the sound gets louder and then returns to the same volume when he moves to the next frequency.

What is the difference between sounds that have the same pitch and loudness?

Which would describe a situation in which the Doppler effect is occurring?

Which refers to the highness or lowness of a sound?

Four people are spaced at different distances from where a dog is barking. The barking will sound the loudest to the person who is standing

Which refers to the change of pitch heard when the source of the sound approaches and then moves away from a stationary person?