Introduction to SAT II Physics

Nodes The crests and troughs of a standing wave do not travel, or propagate, down the string. Instead, a standing wave has certa ...

An empty bottle of height 0.2 m and a second empty bottle of height 0.4 m are placed next to each other. One person blows into t ...

The Doppler Effect So far we have only discussed cases where the source of waves is at rest. Often, waves are emitted by a sourc ...

A cop car drives at 30 m/s toward the scene of a crime, with its siren blaring at a frequency of 2000 Hz. At what frequency do p ...

Practice Questions 1.. Which of the following exhibit simple harmonic motion? I. A pendulum II. A mass attached to a spring III. ...

4.. A piano tuner has a tuning fork that sounds with a frequency of 250 Hz. The tuner strikes the fork and plays a key that soun ...

6.. Two pulses travel along a string toward each other, as depicted above. Which of the following diagrams represents the pulses ...

8.. What is the frequency produced by the siren? (A) (B) (C) (D) (E) 9.. What is the wavelength of the sound produced by the sir ...

B Simple harmonic motion is defined as the oscillation of an object about an equilibrium position where the restoring force ac ...

The frequency of the beats produced by two dissonant sounds is simply the difference between the two frequencies. In this case, ...

where and are the frequency heard by the person and the velocity of the person, respectively, and and are the frequency and the ...

Optics HAVING STUDIED WAVE PHENOMENA generally, let’s take a look at the special case of electromagnetic waves. EM waves are tra ...

A higher frequency—and thus a shorter wavelength—corresponds to a wave with more energy. Though all waves travel at the same spe ...

The law of reflection tells us that angle of incidence and angle of reflection are equal: The reflection of a ray of light works ...

The phenomenon of refraction results from light traveling at different speeds in different media. The “speed of light” constant ...

Given a ray traveling from a medium with index of refraction into a medium with index of refraction , Snell’s Law governs the re ...

Since we know that the ratio of / is equal to the ration of / , and since we know the value for , we can now calculate the value ...

Dispersion There is one subtlety of refraction that we’ve overlooked: the index of refraction depends slightly on the wavelength ...

The four basic kinds of optical instruments—the only instruments that will be tested on SAT II Physics—are concave mirrors, conv ...

vertex and the focal point. For spherical mirrors, the focal length is half the radius of curvature, f = R/2. Concave Mirrors Su ...