# Lesson Worksheet: Sound Science

In this worksheet, we will practice describing sound waves as the motion that oscillating objects produce in air particles around them.

Q1:

Which of the following speeds is closest to the typical speed of sound waves in air?

• A100 m/s
• B3,000 m/s
• C1,300 m/s
• D300 m/s
• E1,000 m/s

Q2:

The diagram shows an object, a person’s ear that is a short distance away from the object, and air particles between the object and the ear. What is the name for what is outlined by the dashed red box? • AA compression region
• BA rarefaction region
• CA region of a sound wave which is one wavelength long

Q3:

In which of the following diagrams would sound not be transmitted from the object to the ear if the object started to oscillate?

• A • B • C Q4:

The diagram shows an object, a person’s ear that is a short distance away from the object, and air particles between the object and the ear. What is the name for what is outlined by the dashed blue box? • AA compression region
• BA region of a sound wave which is one wavelength long
• CA rarefaction region

Q5:

Which of the following diagrams correctly shows the positions of the air particles between an object and a person’s ear when the object is oscillating and when it is not oscillating?

• A • B Q6:

The diagram shows an object, a person’s ear a short distance away, and air particles between the object and the ear. What is the name for what is shown outlined by the dashed blue box? • AA region of a sound wave which is one wavelength long
• BA compression region
• CA sound wave
• DA rarefaction region

Q7:

The diagram shows an object, a person’s ear a short distance away, and air particles between the object and the ear. What is the name for what is outlined by the dashed red box? • AA sound wave
• BA rarefaction region
• CA compression region
• DA region of a sound wave which is one wavelength long

Q8:

The diagram shows the positions of air particles between an oscillating object and a person’s ear. Which of the following diagrams correctly shows the direction of the motion of air particles in sound waves as the sound waves move from the oscillating object to the ear?

• A • B Are sound waves longitudinal or transverse?

• ALongitudinal
• BTransverse

Q9:

The diagram shows an object, a person’s ear a short distance away, and air particles between the object and the ear. The object starts to oscillate. Which of the following diagrams most correctly shows how the air particles move when the object starts to oscillate? • A • B Q10:

The diagram shows an object, a person’s ear a short distance away, and air particles between the object and the ear. In which color dashed box is the density of the air least? • ABlue
• BRed