hearing science quiz 1

3rd harmonic =

2nd overtone

Standing waves

are a result of the superpostion of two traveling waves

While standing on a dock, you observe water waves passing beneath you. If you observe 20 wave crests passing directly below you in 2 minutes and judge the crests to be 1 m apart, what's the period of the waves?

6 seconds

Sawtooth waves have energy at all harmonics (even and harmonics)

true

In transverse waves, particles of the medium move in perpendicular to the direction in which the wave travels

true

A grandfather clocks tick once when the pendulum swings from left to right and once again on the swing from right to left. There are two ticks each second. What is the frequency of pendulum motion in cycles per second (Hertz (Hz)).

1 hz

Assume that you have a periodic wave traveling down an infinitely long rope. What happens to the wavelength if you increase the period of this wave?

increases

Node is the point of maximum displacement on a standing wave.

false, anti node is max

Sometimes, you can faintly hear somebody speaking behind a wall in the room next to you because

part of the original sound waves is transmitted through wall

force =

mass x accerleration

A pure tone is always

a sinusoidal sound wave

The amount of inertia of an object is directly proportional to _______

mass

When a wave travels from one place to another, what is transported?

energy

The unit for Pressure is N/m2

true

In the following figure of a pendulum, the inertial force is maximum at

0

A long pendulum hanging from the classroom's ceiling has a period of 8s. What is the frequency of this pendulum?

1/8 hz

If the fundamental frequency of a rope fixed at both ends is 30 Hz, the frequency of the second harmonic is

60 hz

Compliance is inversely proportional to stiffness.

true

If a hockey puck slides on a perfectly friction less surface, it will eventually slow down because of its inertia

false

A jet airplane takes 2 hours to travel 1600 miles in a straight line. What is the average velocity of the jet?

800