Ap Psych: Sensation and Perception

A sound wave is a disturbance that repeats regularly in space and time and that transmits energy from one place to another with no transfer of matter. In Activity 2 on page 8 we had to model sound waves using an instrument. In our class we used a flute as the example and when the person blew into it, sound waves were produced. As they blew and changed the volume and pitch the sound waves changed. A sound wave is created when something vibrates. When something vibrates, longitudinal waves are created which we can hear. A longitudinal wave is a wave that transfers energy through compressions and rarefactions in the material that the wave travels which are all parts of a sound wave. In Activity 2 it states in some parts of the wave, the air molecules

The sound waves are produced by a random oscillating crystal, and are inaudible to humans. A instrument called a

1.what was the psychologists (no name,on the first side of the article)claim in trying to defend Ethan?(cew)

I also think about how humans and animals hear different frequencies. Someone my age in there 20 's would be able to hear the door bell ring, while someone in there 70 's may not hear it. This measures how over time our frequencies can. A dog on the other hand can hear very high-pitched

1. Differentiate between sensation and perception. Explain the importance of separating these concepts. The differences between sensation and perception is that sensation is the elementary elements that, according to structuralist, combine to create perception. Whereas, perception is the conscious sensory experience (Goldstein, 2014). This student has always looked at sensations as those things in a persons’s environment that one can see, hear, smell, touch, taste, and feel. On the other hand perception is how a person’s brain will interpret what is seen, heard, smelt, felt, or touched.

In this experiment, the signal generator was set so that the frequency meter showed a reading of 1,803 Hz. The microphone was moved to a distance from the speaker so that the oscilloscope displayed a straight diagonal line. This position was of the microphone was recorded as the initial position, or beginning of a wavelength. The microphone was then moved farther in the same direction until the oscilloscope displays the same horizontal line. This position was recorded as final position, or the end of the wavelength. The distance between the two positions represents one wavelength for this frequency. This was repeated for frequencies of 2,402 Hz, 3,002, Hz, 3,602 Hz, and 4,201 Hz.

Compare and Contrast the approach to studying children’s friendships taken in the Bigelow and La Gaipa (1975) study with that taken by William Corsaro.

After being taught three chapters of psychology I have encountered a wide range of information that has interested me, but perception has definitely interested me the most. It has interested me the most because ever since I was a kid I wondered why things closer to the car seemed to be moving faster than objects in the distance. Perception is the body's abilities to sense or detect something through its senses. We use perception everyday as it plays a large role in human life due to the fact that almost everything we encounter can be detected by our five senses.

* Tone – the duration (length), frequency (pitch), amplitude (loudness), timbre (quality of sound). * All sounds have the potential to be tones

It is within this framework that I consider important to study the way in which sound is

The red bar on the left acts as the driving piston. If it moves in a sinusoidal manner from left to right, then the wave that is produced will be a sinusoidal wave. Since the wave is sinusoidal, the wavelength, amplitude and frequency are constant. This is seen in nature as a tuning fork, which produces a periodic sound wave. In a one dimensional tube as shown above, each particle undergoes simple harmonic motion. The volume that is contained in one wavelength also undergoes this same motion. We can represent the displacement of this volume as: