Sound

Frequency is measured in:

• A. Hertz

• B. cycles per second

• C. Frequency

• D. Amplitude

Animals Like dogs can detect sounds up to 50 000 Hz.

• True

• False

Frequency in sound is also called Pitch.

• True

• False

Sound travels faster in solids than in liquids because of its molecular structure.

• True

• False

The higher the amplitude, the softer the sound produces.

• True

• False

Sound speed can travel faster in Hotter places rather than in cold places

• True

• False

An oval window is a snail-shell-shaped liquid–filled organ in the ear. What part of the ear is it?

• Coachlea

• Snail-Shell

• Eardrum

• Cochlea

Is a sound wave whose frequencies are less than 20 Hz. The sound produced by earthquakes, thunder, volcanoes is in the Infrasonic range.

• Ultrasonic frequency

• Infrasonic frequency

Sound is an example of _________________________ because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves.

• Transverse Wave

• Longitudinal Wave

• Surface Wave

Air vibrations set the eardrum membrane in motion that causes the three smallest bones to move.

• Mandible, Maxilla, Clavicle

• Radius, Ulna, Humerus

• Femur, Tibia, Fibula

• Stapes, Incus, Malleus