Sound

THE SOUNDS THAT HAVE A FREQUENCY LESS THAN 20Hz ARE CALLED

• Infrasonic sounds

• Wave disturbance

• Mechanical wave

Sound Navigation, and Ranging is a technique in

which sound waves are used to navigate, detect and

communicate under the water

• Propagation

• Amplitude

• Sonar

The process where sound waves and echoes are used to determine objects in

space is called?

• Echolocation

• Wavelength

• Reverberation

Frequency higher than 20000Hz are called?

• High pitch sound

• Audible sound

• Ultrasound

The human ear can be simplified into three main parts, each

playing a crucial role in hearing. Which part of the ear is this?

Parts: Cochlea, vestibular system (for balance), and

auditory nerve

• Outer ear

• Inner ear

• Middle ear

Draw atleast 2 animals who produce an ultrasound

(This question is just for fun no points graded enjoy! :D)