Chapter 12 - Sound

Which part of your ear acts like a funnel and collects the sound waves?

• Outer Ear

• Ear Drum

• Cochlea

• Stirrup

Which part of your ear is the first part to vibrate?

• Cochlea

• Ear Drum

• Stirrup

• Outer Ear

Which part of your ear sends nerve signals to the brain?

• Outer Ear

• Inner Ear

• Ear Drum

• Cochlea

What do high peaks in a sound wave mean?

• Amplitude is high, sound is loud

• It has a high pitch.

• It has a high frequency.

• It has a high rate of absorption.

What does it mean when the sound waves are close together?

• It is a quiet sound.

• It is a lower pitch.

• It is a higher pitch.

• It is a loud sound.

What tool do you use to measure sound?

• Ruler

• Oscilloscope

• Stethoscope

• Earphones

What is the unit of measurement for sound?

• Decimeter

• Decigram

• Deciliter

• Decibel

What would cause a higher pitch?

Choose all correct answers.

• Vibrations of smaller, shorter objects.

• Vibrations of larger objects.

• Things with quicker vibrations.

• Things with slower vibrations.

What would cause a lower pitch?

Choose all correct answers.

• Smaller shorter objects

• Larger objects

• Things that vibrate quickly

• Things that vibrate slowly.

How can you make a sound louder?

Choose all correct answers.

• Move closer to the object.

• Speak with more intensity.

• Hold your breath while speaking.

• Cup your hands around your mouth.