Sound

Sound waves travel the FASTEST through _____________.

• gases
• liquids
• solids

Tags

NGSS.HS-PS4-1

_______ is the number of waves that pass a certain point at an specific time. 

• Frequency 
• Pitch
• Amplitude
• I don't know

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

An object that does not vibrate cannot produce

• sound
• light
• heat
• electricity

Tags

NGSS.MS-PS4-2

If you want to change the pitch of a sound, you have to change the ___

• frequency
• amplitude
• speed
• volume

What happens when you increase the amplitude of a sound?

• it makes the sound louder
• it makes the sound travel faster
• it increases the wavelength of the sound
• it increases the frequency of the sound

Tags

NGSS.MS-PS4-1

This is the unit used to measure the volume of a sound. 

• Decibel
• Medium
• Vibration
• Oscilloscope

As a sound source approaches and then moves past a stationary observer, the observer will hear

• a steady rise in pitch
• a sudden drop in pitch
• a drop in pitch, then a rise in pitch
• a rise in pitch, then a drop in pitch

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which sentence BEST describes how sound moves?

• Sound can move through solids, liquids, or gases.

• Sound can move through empty space or through matter.

• Sound can move through solids and liquids but not through gases.

• Sound can move through liquids and gases but not through solids.

Tags

NGSS.4-PS3-2

NGSS.4-PS4-1

What does the Auditory canal do?

• Makes ear wax

• Pulls sound waves into the ear

• End the journey of the sound waves