ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
AP Psychology Videos 163 videos
AP Psychology 2.2 Social Psychology. Which of the following was an independent variable manipulated in Asch's research?
AP Psychology 1.1 Personality. According to Freud, these three parts of personality are constantly in conflict.
AP Psychology 1.1 Sensation and Perception. The process by which the brain can turn sensory stimuli from the outside world into electrical signals...
AP Psychology 3.3 Sensation and Perception 9 Views
Share It!
Description:
AP Psychology 3.3 Sensation and Perception. What is the height of a sound wave called?
Transcript
- 00:04
Here's your shmoop du jour brought to you by sound waves the [Sound waves appear]
- 00:07
gesture you see when a song greets you today's question is the height of a
- 00:11
sound wave is known as the what and here are your potential answers okay well here we
- 00:16
go..... well we'll do you a favor and eliminate
- 00:19
the obviously wrong one first seeing as cochlea is the nail shaped portion of the
Full Transcript
- 00:24
inner ear there's no way it has anything at all to do with the technical measure
- 00:28
of a sound wave one down four to go and remember slow and steady wins the race [A slug slowly moves]
- 00:31
here.......Could it be D energy, well sound energy density is calculated by this
- 00:39
mathematical calculation where p is the sound pressure, v is the particle
- 00:44
velocity, c is the speed of sound and well it's a lot more complicated than [Man rolls his eyes]
- 00:49
just the height of a sound wave so we can lose D now what about E; volume
- 00:53
well volume isn't even a scientific term our purposes that option might as well
- 00:58
not even exist so cross out E. That leaves us with amplitude and frequency
- 01:02
well the frequency of the sound wave refers to the number of cycles per
- 01:06
minute the vibration has aka the number of times this wave here goes up and down [Wave turns green]
- 01:12
this is most often measured in Hertz and ultimately determines the pitch of the [Soundwave appears beside a girls ear]
- 01:17
sound that we hear, the deafening squeals of a small child would have a much
- 01:22
higher frequency than the smooth baritone of Elvis Presley not that we're [Elvis singing on stage and a crying baby appears]
- 01:27
discriminating against any certain frequencies but well you know
- 01:30
you're all special in your own way while this measures the frequency of those ups
- 01:34
and downs it doesn't measure the height which is what we're looking for so B
- 01:37
ain't nothing but a hound dog the height of the wave is referred to as amplitude
- 01:42
the taller the wave, the louder the sound so in the case of our baby and the king [A baby in a crib and Elvis holding a guitar]
- 01:47
here you can clearly see which one is louder and which one you're giving back
- 01:52
to its mommy so A is the correct choice A is in anyone got earplugs [Man with Elvis's face inserts ear plugs]
Related Videos
AP Psychology 2.2 Social Psychology. Which of the following was an independent variable manipulated in Asch's research?
AP Psychology 1.1 Personality. According to Freud, these three parts of personality are constantly in conflict.
AP Psychology 1.1 Sensation and Perception. The process by which the brain can turn sensory stimuli from the outside world into electrical signals...
AP Psychology 1.1 Social Psychology. Which of the following best describes social psychology?
AP Psychology 1.1 States of Consciousness. Who conducted research on REM sleep deprivations?