SCIENCE CHAPTER 9 - SOUND PART 1

Sound unlike light cannot be propagated in a

• solid

• gas

• liquid

• vacuum

Which of the phases of matter does sound waves travels fastest?

• solid

• gas

• liquid

• vacuum

Which of the phases of matter does sound waves travel slow

• solid

• liquid

• gas

• vacuum

Which sensory organ of the human body is used to detect transmit and transduce soundwaves

• eyes

• nose

• ears

• skin

Describes how high or low a sound is

• Pitch

• Density

The loudest sounds that you can hear are called ultrasonic sounds.

• correct

• incorrect

What is a pitch?

• highness or lowness of a sound

• the intensity of a vibration

• the amplitude of the sound wave

• volume of sound

Why is sound able to travel faster through a solid than a gas?

• Gas molecules are packed tightly.

• Sound does not travel faster through a solid than a gas.

• Solid molecules are packed tightly.

• Gas molecules move slowly.

How does a sound wave interact with a human ear?

• vibrates the ear drum

• rotates the ear drum

• bounces off the ear canal

• vibrates the ear canal

What is the range of frequencies audible to the human ear

• lower than 20 Hz

• higher than 20.000 Hz

• 0 Hz - infinite Hz

• 20 Hz - 20.000 Hz