Sound and intensity

ID only

Unit for measuring Sound Intensity

• A. Joules

• B. Lambda (λ)

• C. Watts / Metre² or Decibel

• D. Hertz

The loudness of a sound given in decibels

• intensity level

• electromagnetic spectrum

• visible light

• pitch

Having a frequency higher than 20,000 Hz

• infrasonic

• ultrasonic

• decibel

• polarization

Tags

NGSS.HS-PS4-1

__________________________ is the number of times a sound wave vibrates in a given time.

• intensity
• frequency
• vibration
• amplitude

Sound with frequencies between 20 Hz and 20 000 Hz are known as:

• ultrasonic

• infrasonic

• audible range

• visible range

Tags

NGSS.HS-PS4-1

What does pitch depend on?

• amplitude 
• frequency
• intensity 
• volume of sound

Tags

NGSS.HS-PS4-1

Sound will travel through water at 20⁰ C faster than 80⁰ C.

• True
• False

Tags

NGSS.HS-PS4-1

The unit used to measure frequency is the ___.

• newton
• joule
• decibel
• hertz

Tags

NGSS.HS-PS4-1

Reverberation (echoes) in concert halls is caused by ___ of sound.

• reflections
• echolocation
• refractions
• diffusions

Tags

NGSS.MS-PS4-2