Using Sound: Instruction

Which type of sound wave-object interaction breaks down kidney stones and destroys cancer cells? - absorption - diffraction - reflection - refraction

absorption

Use the drop-down menus to explain how noise cancellation works. Waves with similar ____ are created to interfere with unwanted sound waves. The ____ of one wave overlap with the troughs of the other wave, causing the two waves to cancel out each other.

amplitude crests

In ultrasound technology, which type of sound wave-object interaction creates echoes that are processed to form images? - diffraction - reflection - refraction

reflection

Use the drop-down menu to answer the question. Which sound wave-object interaction is used by animals in echolocation? - refraction - reflection - absorption - transmission - diffraction

reflection

Drag and drop each description into the correct category.

Analog signals: - They may pick up unwanted noise. - They copy the original sound. - They flow continuously. Digital signals: - They reduce unwanted noise. - They change sound into numbers. - They do not flow continuously.

Which of these statements accurately describe uses of ultrasound technology? Check all that apply. - It is unsafe to use for industrial applications. - It can be used to clean small items like jewelry. - It can be used to clean large items like machinery. - It increases the production time of everyday materials. - It cannot be used in the presence of liquids like water.

- It can be used to clean small items like jewelry. - It can be used to clean large items like machinery.

Put the events in order to explain how radios work.

1. Sound waves are changed into electrical 2. Radio waves are released by transmitter by radios 3. Radio waves are converted to sound waves