Sunday, February 20, 2011

ASSESMENT CARD

Direction:   Choose the letter of the correct answer.



1.   It i s a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations.

 a. Sound
 b. Music
 c. Melody


2.  Sound is restricted to the frequency range of 20 Hz to 20 000 Hz to which human ear is sensitive. waves with frequencies below this audible range called _______________. 

 a. Sound
 b. Infrasound
 c. Ultrasound

3. Those above or greater than 20 000 Hz are referred to as __________________.

 a. Sound
 b. Infrasound
 c. Ultrasound

4. In studying and detecting sounds within the body, doctors use the _________________.

 a. Microscope
 b. Stethoscope
 c. Telescope

5. The highness or lowness of sound is called ___________________.

 a. Pitch
 b. Noise
 C. Sound

 

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