Lesson 5
What is 2 ways of a stimulus you can sense
Cold, hot, spicy, sweet. *Answer can vary*
when wave energy is trapped in a medium an doesn't pass through it.
absorption
The top or highest point on a wave
crest
What type of waves need a medium?
they need matter, solid, liquid and gas, through which waves travel.
What is the job of a sense receptor
To create a signal. (to the brain)
When wave energy bounces off a medium, causing the wave energy to change direction.
Reflection
The bottom or lowest point on a wave
Trough
What is a wave?
A wave is a disturbance that travels through a medium, transporting energy from place to place without transporting matter.
What happens to wave energy as it moves farther and farther away from its receiver
As wave energy moves further from its source to a receiver, the wave energy will decrease.
what is one way we can have a immediate reaction.
One example is when your phone rings and you grab it. *answers can vary.
When wave energy strikes a new medium and passes through it.
transmission
A mesausre of the disntance from the rest prosistion to the crest, or trough.
Amplitude
In a sound wave system, what is the job of a medium?
In a sound wave system, the job of a medium is to transfer energy from the source to the receiver.
Describe the movement of wave energy when the sound waves are absorbed in the medium.
The movement of wave energy when the sound waves are absorbed is that wave energy will get trapped in a medium and not pass through
what is a example of immediate memory.
when a song comes on when you remember you did something while that song was playing.*answers can vary.
A detector or wave energy which can be natural (ears an eyes) or designed (microphone or camera.)
Receiver
the distance between one wave crest to the next.
Wavelength
how does sound travel
Sound travels when the particles in the medium vibrate, moving back and forth in a small space, transferring ENERGY through the wave.
On a model, how would you draw an arrow to show the phenomenon of sound waves decreasing as you move further from the source?
On a model, the arrow would be thicker at the source of the sound and get thinner as it moves further away to show the phenomenon of sound decreasing as you move further from the source.
How do our senses work?
Sense receptors detected and the nerves sends a signal to the brain.
A disturbance that travels through a medium, transporting energy from place to place without transporting matter.
Wave
The # of wave passing by a certain point, as a receiver per second.
Frequency
If there was an explosion in space and you were there to witness it, would you hear the boom? Why or why not?
an explosion occurred in space, you would not hear the boom since you need a medium to transfer sound energy and there are no particles (none close enough to each other) to transfer sound energy.
How can we control sound waves?
We can control sound waves by modifying the environment with materials/mediums to either absorb, reflect or transmit sound depending on the needs or wants.