Sound

Sound is produced by -----

• Heat energy

• Low temperatures

• Vibrations

• Friction

A wave in which the direction of vibration of medium is in the same direction as that in which the wave is traveling

• longitudinal wave

• ocean wave

• transverse wave

• mechanical wave

The number of wavelengths that pass a point each second

• frequency

• wavelength

• pitch

• amplitude

The part of a longitudinal wave where the particles of the medium are close together.

• rarefaction
• compression
• crest
• trough

What does pitch depend on?

• amplitude 
• frequency
• intensity 
• volume of sound

Which of the following is a CORRECT statement?

• Sound can travel through the vacuum of space

• Sound can't travel through the vacuum of space

• Sound is produced in the vacuum of space

• Sound can travel between planets

List the order of mediums through which sound travels from fastest to slowest.

• Liquid, Gas, Solid

• Gas, Solid, Liquid

• Solid, Liquid, Gas

• Solid, Gas, Liquid

Frequency is measured in ____

• meters

• hertz

• decibels

• seconds

Which travels faster: sound or light waves?

• sound
• light

What is Ultrasound

• Sound of frequency above 20kHz

• Sound of frequency below 20kHz

• Sound of frequency above 50kHz

• None