Post-Test (Sir Kenneth)

1. A student at a concert notices that a balloon near the large speakers moving slightly towards, then away from the speaker during the low-frequency passages. The student explains this phenomenon by noting that the waves of sound in air are __________ waves.

• Electromagnetic

• Latitudinal

• Longitudinal

• Transverse

2. True or False: Sound waves travel fastest in solids and slowest in gases.

• True

• False

3. True or False: Humans can pretty much hear a low-frequency sound as easily as a high-frequency sound.

• True

• False

For numbers 4-5:

In 2-3 sentences, explain how important is sound in various fields such as medicine, research field, and the workplace? Cite at least three samples.

2. True or False: Sound waves travel fastest in solids and slowest in gases.

• True

• False