Sound class 8

An ________ is a reflected sound.

• Vibration
• Echo
• Pitch
• Volume

_____________ is the highness or lowness of a sound.
(Hint: Think about our sound song.)

• Amplitude
• Pitch
• Volume
• Vibration

Sound waves travel the FASTEST through _____________.

• gases
• liquids
• solids

Tags

NGSS.MS-PS4-2

Sound is caused by....

• molecules
• vibrations
• people
• space

Tags

NGSS.MS-PS4-1

What is frequency?

• the number of vibrations per second
• how high or low a sound is
• the loudness or softness of a sound
• the back and forth movement of matter

Tags

NGSS.MS-PS4-1

What is a larynx?

• It is animal is Africa
• It is sound waves
• It is a a muscle that holds vocal cords

Sound does not travel in space because

• Space is too far away.
• There is no matter in space.
• Space is the final frontier
• Space has planets.

Which of the following has the maximum speed?

• Sound in air

• Sound in liquids

• Light

• Sound in solids

Which of the following is the inverse of time period?

• Amplitude

• Frequency

• Pitch

• Quality

Which part of human ear converts sound vibrations into electrical signals

• Hammer

• Stirrup

• Tympanic membrane

• Cochlea