Sound
What pattern does sound travel in?
Waves
What is the wavelength of a WATER WAVE?
The distance between trough to trough
How could two drums send long distance messages?
One drum can create a soft pitch and the other can make a high pitch
What is a model?
Something that scientists create to help them answer questions about the real world
How do sound waves move?
as sound particles COLLIDE, the energy transfers to the next particle.
The point where the sound is the SOFTEST is called the...
trough
What happens when the amplitude of a wave decreases?
The sound gets softer
What does digitize mean?
To break into sections that can be represented by letters or numbers
An engineer is designing a new type of cell phone with a special feature. The goal is for the phone to make pictures look brighter.
Which of the following plans would help with this design process
The engineer should test different combinations of binary code to see which solves the problem in the new phone.
What is the highest point of a wave called?
What do sound waves cause?
Vibrations (movement back and forth)
How close together waves are is called
Wavelength
What is a digital device?
A device that sends electronic signals over wires. A device that uses digitized patterns to send messages. A device that uses patterns of 1s and 0s as electric signals. (Must say 1 of the above)
An engineer is designing a model of ocean waves. She wants to use it to teach science students. Why should the engineer test her model?
To make sure that it meets the criteria and to identify any failure points.
Two squirrels are in a tree (A and B). Squirrel A makes loud noises at squirrel B. Explain how energy is related to this example.
Energy is transferred from squirrel A to squirrel B.
Sound waves can travel through objects and materials, true or false
True
Water level without waves is...
Normal
What does a telegraph send?
Electrical signals
What do particles have to do in order for there to be a transfer of energy?
Collide
Tallest part of the wave is...
Amplitude
What is a particle?
Something very small
Cannot see it
Makes up everything
Louder volume = ________ amplitude
Taller
The closeness of waves affects the
a. pitch
b. amplitude
c. energy
a. pitch
What is the difference between amplitude and wavelength?
Amplitude is: how tall/short, affects loudness or softness
Wavelength is: distance, affects pitch
True or false: All sound waves have the same pattern
False