self check - sound

8/8/2019 Self Check - Sound

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Self Check for Chapter 15 - Sound

While studying this chapter, tick off each item after your have covered it.

A    What I should know:

Propagation of sound

The meaning of compression and rarefaction in the propagation of sound waves

Sound needs a medium for transmission

Speed of sound differs in solid, liquid and gas

Determine the speed of sound using echo

The meaning of echo

Relationship between pitch and frequency

Relationship between loudness and amplitude

Ultrasound is a type of sound wave with frequencies greater than 20 kHz

Uses of ultrasound

B     What I should be able to do:

Describe how sound is produced by vibrating sources

Describe sound waves as a longitudinal wave with compression and rarefaction

Explain why a medium is required in order to transmit sound waves

Compare the speed of sound in air, liquids and solids

Describe how to determine the speed of sound in air and make the necessary

calculations

Relate loudness of a sound wave to its amplitude

Relate pitch of a sound wave to its frequency

Describe how reflection of sound produces an echo

Describe how echo is used for measuring distances

Define ultrasound

Describe uses of ultrasound