Sound 1
Sounds are caused by objects doing what?
What part of your body helps you to hear sounds?
The Ear
What is considered unwanted sound?
Noise
pluck
What part of the experiment do you keep the same throughout
What volume of sound are leaves rustling?
Soft Sound
At what decibel number does normal conversation take place?
60 decibels
What device magnifies sound
amplifier
What do we use to measure the volume of sound?
Decibels
Which part of the experiment do you change to test the different results
independent variable
What pitch of sound are birds chirping?
High Pitch
Solids
What device collects sounds and transfers them into a electronic message which can be made louder
microphone
tighten the sting
shorten the string
Which part of an experiment is what you are observing or measuring
dependent variable
What do you use to measure volume
sound level meter
How can you make a sound lower on a stringed instrument
to loosen or make the sting longer
What can be used to make a sound volume less
muffler or silencer
Frequency
A boy wants to see which soda of the three types of soda makes the tallest expulsion when he adds Mentos candy to it. What is his independent variable in this experiment.
the types of soda
If you fill a water bottle up almost to the top and blow into it, describe what kind of pitch it will produce
a low pitch
What is an example of a high pitched sound?
A violin
A whistle
Birds Chirping
ear protection/ ear defenders
What is an example of a loud sound?
Fireworks
A Jet Airplane
A Police Siren
A Trombone
A girl wants to see how plants can grow in different types of soil. She gets sandy soil, rocky soil, and rich humus soil. They she plants in each pot with 3 sunflower seeds, places them in the same window, and waters them all the same amount. What are 3 of here controlled variables in this experiment.
the plants
the water
the temperature, sunlight