Letter C Song Listen and Repeat

What is the basic definition of sound?

• A type of electromagnetic wave

• A form of energy that travels through air

• A chemical reaction in the atmosphere

• A visual representation of data

Which property of sound determines its pitch?

• Amplitude

• Frequency

• Wavelength

• Velocity

How does amplitude affect the perception of sound?

• It alters the speed

• It changes the pitch

• It affects the loudness

• It modifies the direction

In which field is sound used to enhance communication?

• Biology

• Astronomy

• Telecommunications

• Geology

What is one application of sound in technology?

• Sound is used in data encryption

• Sound is used to power engines

• Sound is used to generate electricity

• Sound is used in noise-canceling headphones