Physics Isa

1. Find the westward component of a resultant vector 85.42 unit, 23º W of N.

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.

A car in a roller coaster moves along a track that consists of a sequence of ups and downs. Let the x

Light passed through a transmission grating is often sent in all directions due to interference. The grating acts as a new wave source and causes the light to travel in different paths. Equation 1 below shows the relationship between path difference and light direction due to constructive interference. D represents the line spacing and sinƟ=a/c according to the drawing below.

In the study of the spectral range of 400-200 nm devices are used built on the same optical scheme as those for studying the visible range of the spectrum, the difference is only in the glass prisms, lenses, and other optical components. When measuring the intensity of UV emission, as a reference is used source in the UV region of the spectrum with known distribution of the spectral brightness (band tungsten lamp, coal arc, and synchrotron radiation). A thermocouple and graded solar cells are standard receivers in this region of the spectrum. Continue reading →

Task Description:The world communicates by making extensive use of the electromagnetic spectrum. For the average person this is commonly accessed using radio waves. These radio waves may be over the AM or FM radio wave bands or the radio waves that transmit our television signals. Not only are people always within a ‘phone call of each other anywhere in the world they are also able to find out exactly where in the world they are by use of

As part of our major project we are required to show our knowledge and understanding of at least 2 major materials or components that we may be using in our project. The 2 components which I’ve decided to work on are resistors and LDR (light depended resistor). I will be discussing about the many functions and uses of these components which makes them a major component for our project.

Extended range of 120dB utilizing the linear to logarithmic transformation of photocurrent in to sense signal voltage with compromise on contrast and brightness [124].

The objective of the experiment was to measure the charging and discharging abilities of a resistor capacitor circuit. In a RC circuit the voltage is an asymptomatic function of the charging time. If a battery were connected in series in a circuit with a resistor, there would be a constant current. In contrast, if the battery were connected with a capacitor in series, the current would be time-varying, decaying to zero as the capacitor charges up. The results of the experiments verified the properties of the RC Circuits, confirming that voltage is a function of the product of resistance and capacitance. The experiment produced results that agreed with expectations confirming the electrical theory of RC circuits.

To help me plan my investigation I have completed a preliminary experiment in which I investigated the effect of the thickness of a wire on its resistance, using three constantan wires and one copper wire. I found that the resistance increased as the thickness of the wire decreased, however, when I did the test with the copper wire I found that it was so unresistant that there would not be a lot of point in

Throughout this research paper, the reader will have a better understanding of the different forms of resistance. Also the reader will have the ability to compare the two types of resistance which were active and passive. And finally the reader will be abl

where I is the current through the conductor in units of amperes, V is the potential difference measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms.

where V is the potential difference measured across the resistance in units of volts; I is the current through the resistance in units of amperes and R is the resistance of the conductor in units of ohms. More specifically, Ohm's law states that the R in this relation is constant, independent of the current.

A photoelectric sensor is a device that senses a change in light beam intensity. Characteristically, this means either non-detection or detection of the sensor’s emitted light source. Depending upon sensors, the nature of light and method by which the target is detected varies accordingly.

Resistors are one of the most common electronic components. A resistor is a device that limits, or resists current. The current limiting ability or resistance is measured in ohms, represented by the Greek symbol Omega. Variable resistors (also called potentiometers or just “pots”) are resistors that have a variable resistance. You adjust the resistance by turning a shaft. This shaft moves a wiper across the actual resistor element. By changing the amounts of resistor between the wiper connection and the connection (s) to the resistor element, you can change the resistance. You will often see the resistance of resistors written with K (kilohms) after the number value. This means that there are that many thousands of ohms. For example, 1K is 1000 ohm,2K is 2000 ohm, 3.3K is 3300 ohm, etc. You may also see the suffix M (mega ohms). This simply means million. Resistors are also rated by their power handling capability. This is the amount of heat the resistor can take before it is destroyed. The power capability is measured in W (watts) Common wattages for variable