intensity of sound

in which temperature the sound travel fastest?

• 10 C
• 20 C
• 30 C
• 40 C

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

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

• Decibel
• Medium
• Vibration
• Oscilloscope

This word refers to any substance that sound can travel through.  Sound can travel through solids, liquids, and gases.

• Decibel
• Medium
• Vibration
• Oscilloscope

This is what you get when soundwaves are reflected, or bounce back, off of a hard surface.

• Amplitude
• Pitch
• Volume
• Echo

the loudness of sound is determined by its______

• Frequency
• speed
• intensity
• wavelength

Which sound is 100 times louder than the sound with 10 decibel intensity?

• 30 decibel
• 1000 decibel
• 100 decibel
• 300 decibel

vacuum cleaner makes 60 decibel sound, whisper is 20 decibel, how much louder the vacuum cleaner is?

• 3 times
• 10000 times
• 300 times
• 1000 times

__________ is a measure of the size of sound waves.

• amplitude
• wavelength
• frequency
• speed

intensity is a measure of the _______________ in sound waves

• amplitude
• wavelength
• energy
• speed