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# Physics Lab Report

Factors Affecting Photoelectric Effect
According to the findings, it can, therefore, be said that photoelectric current is produced as a result of the photoelectric effect; therefore, understanding the factors which influence the photoelectric effect is very important. The previous studies on photoelectric effect have presented the following factors which may have a direct impact on the photoelectric effect.
Pages: 20 (5000 words), Lab Report
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Range VS Height
The data scattering is most visible (also in the relative value), which is probably caused by the human error (the ball was not dropped very carefully, and consequently hit the bounce plate in different places, under slightly different angles.Figure 3 shows a linear dependence of the range R against √H. One can notice also an almost linear dependence R[H]. This is due to the fact that the value of h lies in in the range close to the values of H. One would expect a linear dependence R(H),
Pages: 4 (1000 words), Lab Report
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Describe types of feedback and determine the effects of circuit performance when feedback is applied,Describe the circuit conditions and the methods used to achieve sinusoidal oscillation
It is worth noting lacking a positive feedback in any circuit causes a slowdown in the detectors of the open loop. Positive feedback can lead to an increase in the amplifier gain.More often than not, feedback is used in electronic circuits for various reasons. First, circuit characteristics can be controlled and made independent of wide variations in most of the active device parameters (Musrt 34). Second, using feedback, it is possible to make circuit characteristics relatively independent of
Pages: 10 (2500 words), Lab Report
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Lab Report on Motion
These data will help to calculate acceleration due to gravity. The acceleration is vital because is used to calculate the experimental gravity (g) from the expression a = gsin theta. In the first experiment, which is motion in two dimensions, the size of spaces between successive dots increase with an increase in time in the Y direction; while that in X direction decreases with time taken, by the floating hockey puck to punch dots on the carbon paperOn plotting, the points for a graph of
Pages: 5 (1250 words), Lab Report
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Static Equilibrium
The mass for the 50gram disk was calculated. Also, mass of one of the hangers was measure. The mass of the disk was increased to the mass of the hanger, and its sum tabulated. This process was done again for second 50 gram disk and mass hanger. The sum was taken as M2 the components of for both X and Y of the force vectors given that m1 positioned at an angle of 40 degrees, and m2 is at 120 degree. In order to obtain the magnitude direction, a third force is necessary to balance through the use
Pages: 5 (1250 words), Lab Report
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RC time constant of a capacitor
For the circuits that are complicated having the resistance number or capacitor number above two. In this case, an open time circuit method will give a way through which the cut off frequency is approximated. By computing the sum of many RC time constants.In the first stage the 470F capacitor was used together with the resistor box set to 80,000. The capacitor was polarized to have a positive and a negative side. The switch of the circuit was left open and the circuit cheeked by the instructor.
Pages: 5 (1250 words), Lab Report
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Atomic force microscopy
This is displayed laterally to the position of the sample.The main problem with the contact mode is the application disproportionate force to the sample by the probe leading destruction of the sample surface; this can be minimized by reducing the amount of force applied by the probe. However, there are limits to the minimum force that the operator can apply during scanning in ambient conditions.Ambient conditions possess some challenges to AFS since a thin layer of about 30 monolayers made up
Pages: 5 (1250 words), Lab Report
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Hooke's law
Since the spring used is the same, the spring constant will always be the same for any value of force applied and extension of the spring.The relationship between a load force and a light spring was the first determined by an English scientist, Robert Hooke (1635-1703) in the 17th century. Hooke’s law states that when an elastic material is subjected to a force, its extension is proportional to the applied force. The value of is constant for a particular spring. When an elastic material is
Pages: 5 (1250 words), Lab Report
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Two stage compressor
The piston in each cylinder was then linked to separate dynamometer with each dynamometer having its own electrical variable speed drive located in the control panel. Each compressor instrument group had two analogue meters. There meters were used to measure directly the current (A) and the voltage (V) applied to the dynamometer.Compressor 1 (N1) was started and its speed set to 750 rev. This constant was maintained during the test. Compressor 2 was started and its speed set to 500 rev. The
Pages: 4 (1000 words), Lab Report
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Physics Project (( Radioactive decay ))
Approximately 50% of the coins should decay at each throw and that it should take approximately three shakes to get to zero coins left. In the second set up hypothe\sis were that; four coins should decay most often on the first throw. Our prediction of the percentage decay first throws calculation is 50%. The distribution of the number of coins that decay on the first throw should be bell shaped (Cook 2010, Pg.Radioactive process is a random and spontaneous process hence it is not possible to
Pages: 4 (1000 words), Lab Report
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Physics Project (( Radioactive decay ))
Spontaneous process hence it is not possible to predict when a given nucleus will decay, i.; any radioactive nucleus may decay at any given moment (Krane, 1988, Pg. For each given time, there is a probability that the nucleus will decay. This probability per second is referred to as the decay constant, λ, and it represents the number of the nucleus of a given element that will probably decay in one second. The number of nucleus decaying at per unit time is always proportional to the amount of
Pages: 4 (1000 words), Lab Report
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Labs 1,2,3,4,5,6,7
Was still at one place at first and the bowl is accelerated, the water tries to stay behind while the bowl moves forwards immediately and the water spills back. However when I walk at steady speed nothing happens since no external force is there and the water tends to be at one place. When I walk straight the water tends to be in the forwards direction but since I turn rightly abruptly, the water spills since its motion was in the front and the sudden change in direction caused spilling.
Pages: 10 (2500 words), Lab Report
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Energy Conservation
To confirm energy conservation, computing mechanical energy for these systems at various points indicated that the answer remained constant for the various data.Further, for the shot basketball, in part 3, the experiment was successful in confirming the energy conservation witnessed by a basketball. The conservation was confirmed when the ball was dropped from a certain height and bounced back to that similar height. However, energy conservation stopped being valid after sometimes, as shown by
Pages: 4 (1000 words), Lab Report
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Laboratory Report of an experiment on Optical Fibre Transmission
The incident angle, in the boundary between the materials of higher refractive index and that of low refractive index, there is a total internal reflection of the light. Therefore, the fibre is made as thin as possible to maximize the size of the incident angle and ensure that it is always higher than the critical angle.Even though it is possible to direct the inside an optical fibre, it is vital to decide on the way the input signal ought to be reduced on the basis of its frequency of that
Pages: 7 (1750 words), Lab Report
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Bernoulli's experiment
The concept conveyed can be explored on the basis of law of conservation of energy. As a result, movement of fluid from wider section of a pipe to a constriction, triggers a greater distance movement of corresponding volume at the constriction thereby leading to an increase in speed. The aspects explained therein, constituting work done in both wider and narrower section can be summarized into the product of the pressure and volume. The greater speed evident leads to higher kinetic energy of
Pages: 8 (2000 words), Lab Report
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Investegating radioactive decay by tossing coins
However, this energy can be harnessed and directed to perform very critical yet benevolent activities like the experiment we are about to start discussing. When the nucleus of an atomic isotope decays emitting an alpha or beta particle, it turns into another kind of atom. This process is called radioactive decay.The radioactive half-life for a given radioisotope is a measure of the tendency of the nucleus to "decay" or "disintegrate" and is associated with probability. The decay process and the
Pages: 4 (1000 words), Lab Report
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By an equation that is stated as sin q air = n sin q glass; whereby the subsequent measurement of subsequent angles is done on the normal surface in which n refers to the refraction index of the entire glass. The refraction index is hence a dimension-less value and is simply a clear measurement of the intensity in which the medium can bend light. The increase in the size of n is directly proportional to the increased bending of light. The usual refractive index of air is always 1. For a glass,
Pages: 4 (1000 words), Lab Report
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Work and energy
Moreover, plug (echo) was also connected to the Digital Channel 2. The track was placed on the horizontal surface, and the lab jack was placed at one terminal track to the raise that ends. The end stop for the track ought to be placed at the higher end of the track so that the underlying magnets face away from the prevailing the track. The angle indicator was used to measure the incline angle of the track and recorded in the table. Motion Sensor was mounted at the low end of the track, and the
Pages: 4 (1000 words), Lab Report
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Final project
It is expected that an increase in mass leads to a decline in the acceleration, when the force is constant. This case applies to projectiles too, where heavy materials shall exhibit a shorter distance (Nour et al.Having the material provided in the lab, a trebuchet was set to throw different weights of plasticine, which were rolled into different round balls, whose sizes differed significantly. The researchers threw the balls and measured their distances, starting from the smallest (lightest)
Pages: 4 (1000 words), Lab Report
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How are flow, turbidity, and precipitation related for the Red Cedar River
Is there much predictive power of discharge for river depth (provide and interpret R2)? How might all of this information be useful to society in general?From figure 1 it can be seen that the discharge changed after 8 days of precipitation. The lag in in this change could be as a result of buildup. The discharge of the river gains contribution from different regions and sections of the river and it takes some time for all the water to reach the sampling sites.From figure 3, the correlation of
Pages: 4 (1000 words), Lab Report
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