T/F: All animals can hear and make the same frequencies of sound.
What is false
100
What caused the sound on our straw squakers?
What is the end vibrated.
100
Sound is ____________ than light.
What is slower
100
The number of wavelengths in one second.
What is frequency
200
Sound waves are ______________ waves.
What is compression or longitudinal
200
Some animals use this to determine where things are.
What is echolocation
200
What did you see when you put the triangle in the water?
What is vibrations, ripples in the water.
200
Sound will travel faster in which one: solid or gas?
What is solid
200
Frequency is measured in this.
What is hertz
300
Areas with a high concentration of energy in a sound wave
What is compression
300
Some animals can hear sounds at a higher pitch than humans can. These are called____________ waves
What is ultrasonic
300
When the bottles had different levels of water, which one had the lowest sound when struck with the spoon? WHY?
What is the one with the most water
300
Put these in order from fastest to slowest as sound travels through them: steel, air, juice
What is steel, juice, air
300
Intensity/loudness is measured in this.
What is decibels.
400
Areas with low concentration of energy in a sound wave
What is rarefaction
400
Some animals can hear sounds lower than humans can. These waves are called ____________ waves
What is infrasonic waves
400
When Mr. Voss blew on the top of the bottle, which bottle had the highest pitch? WHY?
What is the one with the most water, least amount of air
400
Put these in order from slowest to fastest: helium gas, speed of light, wood
What is helium gas, wood, speed of light
400
The higher the amplitude means what?
What is the louder the sound.
500
All sounds are caused by _________________ in a medium.
What is vibration
500
Name an animal that can hear a higher pitch than humans
What is dogs, cats, bats, whales
500
Explain the bottle experiment. EITHER explain why the different levels of water sounded different when struck with a spoon OR when someone blew across the top
What is STRUCK: the more water, the slower/lower the vibrations sound
BLOW ACROSS TOP: the more air, the slower/lower the vibrations and sound
500
Explain why sound travels faster in solids than gasses.
What is there are more molecules to vibrate in solids, therefore, the sound can move more quickly through them