Sound

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 what you get when sound waves are reflected, or bounce back, off of a hard surface.

• Amplitude
• Pitch
• Volume
• Echo

Tags

NGSS.MS-PS4-2

True or False: Can sound travel through a vacuum (space).

• True
• False

True or False: Sound travels better through solids than through liquids

• True 
• False

Tags

NGSS.MS-PS4-2

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.

Tags

NGSS.MS-PS4-2

How does a sound wave interact with a human ear?

• vibrates the ear drum
• bounces off the ear canal
• rotates the ear drum
• vibrates the ear canal

If the distance represented by the letter A were increased, how would it change the way the sound was heard?

• The sound would be higher. 
• The sound would be lower. 
• The sound would be softer. 
• The sound would be louder. 

The term for how high or low a sound is:

• pitch
• volume
• sound
• medium

The term for how loud or soft a sound is:

• pitch
• volume
• sound
• medium

Tags

NGSS.MS-PS4-1