This occurs because the pendulum moves back and forth (first in one direction, then the other) for one complete period; giving two peaks in the Y acceleration graph per swing of the pendulum's motion. Constant velocity: Position vs Time graph: If we make a graph of position vs time and our object is moving at a constant velocity, the graph will form a straight line. This line may indicate that more readings are needed as the plotted points may be. GENERAL SCIENCE LABORATORY 1110L Lab. (3) Oscillate the pendulum for small amplitude (θ=3~40). , what is initial displacement, initial velocity, natural frequency and time period are explained. Then we will apply this to data taken from a simple pendulum. all the experiments. The two variables that I have chosen are the length of the pendulum's string and the mass of the pendulum's bob. Conical pendulum is similar to simple pendulum with the difference that the bob, instead of moving back and forth, swings around in a horizontal circle. In fact many engineering devices rotate about a fixed point and are examples of a pendulum although they might not appear to be so at first glance. In the experiment to plot the graph between square of amplitude and time of a simple pendulum and dissipation of energy , the oscillation occur in viscous medium like air. In this tutorial, you model and simulate a pendulum using the custom link block you created in Model a Simple Link. Watch out - you're limited to 5 minutes! From a simple pendulum. The time for ten complete oscillations of the pendulum is measured using the stopwatch. To find the length of the second's pendulum. Each of these terms is illustrated by giving an example, where user can enter his value and observe. INTRODUCTION The objective of this experiment is the study of oscillatory motion. A graph is one of the easiest ways to compare numbers. ExploreLearning ® is a Charlottesville, VA based company that develops online solutions to improve student learning in math and science. Ataree2 1 HBCSE-TIFR, Mumbai 2 NES School, Mumbai Abstract Simple Pendulum is the most basic experiment of mechanics at school level which deals with concept of gravitation, conversion of energy, phenomenon of oscillation etc. The Science Behind Pendulum Painting. Students who score >30 and/or improve their overall ACT score by 5 points will receive 36U gear! Celebrate your achievements here. During a physics unit, have students explore potential and kinetic energy with these five fun experiments that encourage problem solving and play. The Simple pendulum lab report has been shifted to. Time how long it takes for the bob to pass this point 20 times going in the same direction eg left to right. The thread is held firmly between two small pieces of wood (or a split cork) held by a clamp and stand. For the purposes of this experiment, you will need to ensure that your simple pendulum swings in a vertical plane. To plot L-T and L-T2 graphs using a simple pendulum and thus find the; Effective length of the second's pendulum using the appropriate graph. MC-7 Simple Pendulum. The final stage was to actually draw the pendulum and show the motion. buckle and the Period for a simple pendulum compare to the angle of release and length of cord. Further, for small θ, θ l mgmg cosθ mg sinθ Fig. Once in motion, you can pause the pendulum by clicking on the "pause/play" button. Firstly, it is a comprensive quantitative study of one physical system, the pendulum, from the viewpoint of elementary and more advanced classical physics, modern chaotic dynamics, and quantum mechanics. 1 Purpose 3. The period of P is 1. In physics, as in every other experimental science, one cannot make any measurement without having some degree of uncertainty. Focus the microscope on the meniscus of the water level in the capillary tube and adjust the microscope until the horizontal cross-wire is tangential to the bottom of the meniscus which is of course seen inverted in the eyepiece of the microscope. Reading through all of the choices might distract you from drawing your own conclusions from your chart interpretation. Torsional pendulum. I am asked to plot a curve for a graph given the follow kg table and information: Here is my attempt. In this experiment, a simple pendulum will be used to measure "g. Conclusions: Hooke's Law says that the stretch of a spring is directly proportional to the applied force. Hehnly Introduction: The simple pendulum is a mass hanging from the end of a string which is connected above in such a way to allow the mass to swing freely. Complete form of the Simple Pendulum Motion Experiment with aim, method, discussion, and conclusion. Students will also be introduced to the resistor color code and refresh their graphing skills. Set up a simple pendulum system by using a pendulum bob, a string, a clamp and a retort stand. Create a graphing window that contains the three following graphs: Position vs. The period does not depend on the mass of the pendulum or on the amplitude of the motion, at least so long as the amplitude is sufficiently small. If there are no other forces, the net torque for rotation about the pivot is, X T= T = mglsin Now, apply Newton's law, dh dt = h. x = -k a this is a linear relationship so the graph is a line, the slope is negative so the line is heading down. Simple science experiments you can do at home with your kids are a fun way to introduce children of all ages to basic scientific concepts. For the purposes of this lab, the simple pendulum is modeled as a simple harmonic oscillator, but with the caveat that. A simple pendulum performs simple harmonic motion, i. The Simple Pendulum Laboratory Report BEST LAB REPORTS ONLINE Abstract The pendulum method is used for determination of the acceleration of gravity (g). Neat, huh?. In the simple harmonic motion experiment; the equation neglects both gravity and air resistance. In this lab we will establish the relationship between the period and the length of the pendulum by measuring the period for di ering lengths. Day 1 focuses on log-log plotting and determining the slopes of such plots. Range Bar Graph; Range bar graphs represents the dependent variable as interval data. Hence find the effective length of second's pendulum using appropriate graph. A graph of period vs. in JEE-Main Physics. Swinging ball against a glass block. An example of a displacement vs position graph for a wave. Dependence of Period on Length If all the mass of the pendulum were concentrated at a point, then the length L that appears in formula (1) would be the distance of that point from the pivot. To Study Dissipation of Energy of a Simple Pendulum by Plotting a Graph Between Square of Amplitude and Time Aim To study dissipation of energy of a simple pendulum by plotting a graph between square of amplitude and time. The problems in deeper understanding start when the educator. 1 The Amplitude, Phase Trajectory, and Energy of Small Oscillations. Outline: By adjusting the position of the pendulum bob along the aluminium rod and using the timer to record the time for one oscillation, the. In that other derivation, we. The string, in turn, tugs on the second pendulum. The distance between the point of suspension of. In this case we have: F = mg sin θ,(1) where F is the restoring force acting on the pendulum, m is the mass of the bob, g is the acceleration due to gravity and θ is the angular displacement. C - SJP Pendulum. Use this online simple pendulum calculator to calculate period, length and acceleration of gravity alternatively with the other known values. The knowledge you will gain will allow you also to continue with experiments like these, getting further amusement and knowledge. Verify the triangle law of forces take 3 readings). A Simple Pendulum A pendulum is an object suspended from a point in such a manner that it can swing in an arc of a circle. The object of this experiment is to study simple harmonic motion of the simple pendulum and to measure the acceleration of gravity g. Lab 7: The Pendulum Lab Objective: 1) Determine whether the period of a pendulum depend on the initial angle of release (i. If you were conducting an pendulum lab experiment on the moon, how would the period be effected? We did a lab in class with a mass on a string and swung it back and forth. Focus the microscope on the meniscus of the water level in the capillary tube and adjust the microscope until the horizontal cross-wire is tangential to the bottom of the meniscus which is of course seen inverted in the eyepiece of the microscope. A graph is drawn with l along X axis and T 2 along Y axis. A psychic will enter into a meditative state, and you should be relaxed as well. To demonstrate that the motion of the torsion pendulum satisfies the simple harmonic form in equation (3) 2. The period, T, of an object in simple harmonic motion is defined as the time for one complete cycle. By applying Newton's secont law for rotational systems, the equation of motion for the pendulum may be obtained , and rearranged as. These principles predict how a pendulum behaves based upon its. (Absent records of Aristotelian pendulum experiments we can think of this as a thought experiment. In this experiment, a simple pendulum will be used to measure "g. The pendulum was introduced in 1851 and was the first experiment to give simple, direct evidence of the earth's rotation. Weather Worksheets. In this experiment we are going to find out what effect changing the mass on the end of the string makes. The simple gravity pendulum is an idealized mathematical model of a pendulum. This guide, which is broken into four sections, is intended to help you get started: Why bother reading scientific papers? - This section explains what you gain by reading the original scientific literature. Hence find the effective length of a second?s pendulum using appropriate graph. Describe how this data could be graphed so that the gradient of a straight line could be used to determine the velocity of the object. Before starting the lab, you need to get some background on non-linear oscillations and chaos. The mass M of the pendulum is determined by weighing the bar with an accurate scale or balance. A simple pendulum is one in which all of the mass is concentrated in a point at the end of a massless cord. 1 The Amplitude, Phase Trajectory, and Energy of Small Oscillations. Equations for a Simple Pendulum. Objectives. in simple pendulum experiments) from the readings of water level in a measuring cylinder using displacement method. Acceleration Due to Gravity – Free Fall 18. Thederivation is similar to that of a simple pendulum since one can consider all the mass M to be located at the body's center of mass. When a pendulum swings through a small angle (about 7° or less) the time taken for one swing i. In this experiment, I am going to be measuring the effect of two variables on the time of one oscillation of a simple pendulum. Then the frequency of oscil-. To find the length of the second's pendulum. The official youtube channel of Harvard Natural Science Lecture Demonstrations. In this experiment we utilized a Foucault pendulum of 8 m length with a bob (B) of lead 8 kg mass and having an aerodynamic form, being shaped as a horizontal lens with diameter of 20 cm and 4 cm central thickness. Simple pendulum: Objective. Any motion that repeats itself at regular intervals is called harmonic motion. The variables we consider are mass, length of the pendulum, and angle of initial dislocation. The force that keeps the pendulum bob constantly moving toward its equilibrium position is the force of gravity acting on the bob. Pendulums The classic pendulum story has the young Galileo Galilei (1564-1642) using his heart rate to time the oscillations of the chandelier in the cathedral at Pisa. The model was constructed with the square of the period of oscillations in the small angle approximation being proportional to the length of the pendulum. In the absence of friction it executes simple harmonic motion. Experiment 3: Study of Small Oscillation using a bar Pendulum. So, recapping, for small angles, i. You need to recognize the graph types by their appearance. Another common example used to illustrate simple harmonic motion is the simple pendulum. Their angular velocity, however, is the same. Simple Pendulum The other example of simple harmonic motion that you will investigate is the simple pendulum. Have students review the packet. SIMPLE PENDULUM INTRODUCTION A simple pendulum has a mass m (bob) hanging from a string of length l fixed at a pivot point as shown in the diagram at the right. Well, despite the memories of movie-house era stereotypes, the marketplace of pendulum readings are quickly becoming popular and sought after as psychic readings go for today. g q m l FIGURE 2. Initially, an example of simple pendulum is taken and the basic terminology i. Learn to make measurements with the Analog Discovery on a simple physical system. The period is found to increase roughly as the square root of the length, in. Used by over 7,000,000 students, IXL provides personalized learning in more than 8,000 topics, covering math, language arts, science, social studies, and Spanish. Our pendulum has been designed so that it’s simple to choose different pendulum lengths, support bearing locations, and joint types. To use a pendulum to demonstrate the random nature of a physical measurement. A considerable amount of information about the motion can be obtained by examining the slope of the various motion graphs. A simple pendulum consists of a mass m hanging from a string of length L and fixed at a pivot point P. It is useful because its time period stays the same even when its amplitude changes. In this tutorial, you model and simulate a pendulum using the custom link block you created in Model a Simple Link. In this case, the net force F c will be equal to the vector sum of the tension holding up the pendulum's suspended mass and the force of gravity. 0 Abstract: The experiment was carried out to show that the mass of the bob has no effect on the period of the oscillation. To create your own position calculation using equation 1, open the Experiment Calculator, and enter the new calculation shown at right. Account of experiments for determining the length of the pendulum vibrating seconds in the latitude of London; Philosophical Transactions, v 104, 109 p; Reproduction in laboratory Resource Centre). 110 Avon Street, Charlottesville, VA 22902, USA. You can select different variables to customize these graphing worksheets for your needs. Hence find the effective length of a second?s pendulum using appropriate graph. Ensure that the pendulum swings in a single plane. T =2*pi[sqrt(L/g)] On the following sheet of graph paper, sketch T vs. A double pendulum consists of one pendulum attached to another. All these motions exhibit simple harmonic motion. The experiment is preformed as explained above. Draw a suitable graph to investigate the relationship between the period of the simple pendulum and its length. (Hint: Can the term in parentheses be treated as a constant of proportionality?) Extensions. Ball bounce -- simple science fair project, good for 4th grade. The force that keeps the pendulum bob constantly moving toward its equilibrium position is the force of gravity acting on the bob. The simulation is implemented as a Java applet. IXL is the world's most popular subscription-based learning site for K–12. The time period (T) of a simple pendulum for oscillations of small amplitude, is given by the relation T L/g=π2. will do the same. First, several assumptions simplified the experiment into an easily modeled system. A physical pendulum has physical dimension, and so the body has to be modeled as having a distribution of mass. 30 Foucault pendulum latitude model A vibrating elastic steel wire pendulum demonstrates how the rotation of the plane of oscillation depends on the latitude. Draw a suitable graph to investigate the relationship between the period of the simple pendulum and its length. It consists of a small bob of mass ‘m’ suspended from a light string of length ‘L’ fixed at its upper end. Cancer - In this activity students will work with data about cancer deaths. Also calculate the same volume from the radius measured using Vernier callipers. Well, despite the memories of movie-house era stereotypes, the marketplace of pendulum readings are quickly becoming popular and sought after as psychic readings go for today. Equipment Procedure - Pendulum (Refer to Figure 1) 1. Therefore F = - mg sinθ = ma giving a = - g sinθ But for small angles sin θ tends to θ c, and therefore a = -gθ = - gx/L. For your pendulum it is a good approximation to take L to be the distance from the pivot down to the center of the billiard ball. The pendulum bob is displaced and then released so that it. Our objectives are; To plot a L-T 2 graph using a simple pendulum. PURPOSE: In this lesson students will: Use systematic thinking and reasoning to discover how pendulums work. , what is initial displacement, initial velocity, natural frequency and time period are explained. " A simple pendulum is made of a long string and a tiny metal sphere, steel or preferably lead (higher density). Controlled variables would include the pendulum’s mass and the angle at which the pendulum was launched. You can vary friction and the strength of gravity. 50 you need a depth of 2. where L is the pendulum length and g is the local acceleration of gravity. pendulum and thus different places on the pendulum have different speeds. Welcome to the forum. What is the effective length of a seconds pendulum? Define SHM. The Simple Pendulum Experiment ID Number Word count: 883 The aim of this experiment is to determine an empirical value for the acceleration due to gravity. the graph, and then check “Maximum” in the Statistics pull-down menu. The Pendulum. EXPERIMENT 14 SIMPLE HARMONIC MOTION I. To determine Young's modulus of elasticity of the material of a given wire. 2017-1; May 3, 2017 Oscillations are a commonly observed physical phenomenon. The experimental graph presented here. The slope of the graph of position as a function of time is equal to the velocity at that time, and the slope of the graph of velocity as a function of time is equal to the acceleration. In this first introductory lab, you will. Galileo's pendulum experiment showed that the period of the swing is independent of the amplitude (size) of the swing. 00 m, and the distance from the pivot point to the center of mass is l = 0. It can be shown mathematically that the position-time graph of a pendulum is sinusoidal, with a period that depends on the pendulum's length. Thus, in a conical pendulum the bob moves at a constant speed in a circle with the string tracing out a cone. What is the effective length of a seconds pendulum? Define SHM. simple pendulum. 4 as when the length was 0. Construct a simple pendulum as shown in Fig. If all the mass of the body were concentrated at a point O (See Fig. Why Almost Everything You've Learned About Simple Pendulum Lab Report Graph Is Wrong. THEORY: A simple pendulum is defined, ideally, as a particle suspended by a weightless string. Find weight of given stone in air. Intercept on the 2lP axis = 35. Note the temperature. We have a huge curriculum of printable worksheets and lessons for this skill. will take the diode out of breakdown and, for a given V. Click on the images to view, download, or print them. Pasco 20 Specific Heat of an Unknown Metal; Pasco 3 Energy Content of Food (4) Simple Harmonic Motion - (motion detector) The purpose of this activity is to determine how the mass and length of a pendulum affect the oscillation period of the pendulum. I will be investigating the effect of the length of a pendulum's string on the time for the period of that pendulum. Thus, in a conical pendulum the bob moves at a constant speed in a circle with the string tracing out a cone. Find the acceleration due to gravity at your place using simple pendulum from l – graph. Also available are: open source code, documentation and a simple-compiled version which is more customizable. 1 internal assessment. RAPIDS cuGraph is on a mission to provide multi-GPU graph analytics to allow our customers to scale to billion and even trillion scale graphs. Hence find the effective length of second's pendulum using appropriate graph. In fact many engineering devices rotate about a fixed point and are examples of a pendulum although they might not appear to be so at first glance. See the important step of calibration – converting a measured voltage to a physical value. Common graphs use bars, lines, or parts of a circle to display data. This handbook written according to the needs and requirement of the board exam helps the student to score high. Tips for Physics Practical Exams. Comment on the accuracies. L on the bottom 1/2 sheet. STEM Simple Pendulum Experiment for Kids This STEM experiment for kids featuring a simple pendulum and a laundry basket yielded surprising results after a number of pendulum swings. A double pendulum consists of one pendulum attached to another. Page 1 of 2 − Measurement of the Gravitational Acceleration using a Pendulum Measuring the Gravitational Acceleration with a Pendulum In this lab you will measure the gravitational acceleration using a simple pendulum. Click on the Graph Display to make it active. The pendulum is the simplest mechanical system you can model. ) Use sufficient mass to give a reasonable reading on the force measurer (150 to 350 g). Be faithful to the trend of the data; don't try to fit the data with a preconceived curve. Simple pendulum: Objective. Pendulum Lab 2. Place students into groups of three to four students. The controlled variables were the length of the pendulum and the point of release. Objective: Determine the gravitational acceleration g from the simple pendulum's. The mass, […]. Problem 2: Experiment 09 Physical Pendulum Part One: Ruler Pendulum The ruler has a mass mr = 0. (7) Plot the graph between T. 4) You can change the number of periods from 1 to a higher number in order to time for more than one period of oscillation. Probably the most common application in biology of this technique is in the measurement of the concentration of a compound in solution. After some thought, you might ask if Galileo could. When displaced to an initial angle and released, the pendulum will swing back and forth with periodic motion. Purpose of the experiment: to study tension of the physical pendulum; to determine acceleration of the free fall by. Volume (ml) 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 Temp (oC) Simple Temp (oC) Fractional Plot both sets of data in one Excel graph. The restoring force F is the component of the weight of the bob. Measurement of 9. Reading through all of the choices might distract you from drawing your own conclusions from your chart interpretation. This website and its content is subject to our Terms and Conditions. 3 Experiment 1: angle at which easy approximation breaks down The preceding discussion should give us an idea for ﬁnding the angular displacement at which a simple pendulum no longer behaves like a SHO, or in other words, the angle at which the approximation sinθ ≈ θ breaks down. Sloping and Intersecting a Linear Function- This lesson discusses graphing, slope, x-intercept and y-intercept. Calculate. The graphs should indicate a. First, several assumptions simplified the experiment into an easily modeled system. Hence find the effective length of a second?s pendulum using appropriate graph. For experimental purposes, a simple pendulum is made by attaching a length of thread to a small brass or lead sphere called the bob. In this experiment we had to take the scale readings using telescope. The object is at rest at t = 0 and x = 0. Complete form of the Simple Pendulum Motion Experiment with aim, method, discussion, and conclusion. When a pendulum swings through a small angle (about 7° or less) the time taken for one swing i. A simple schematic representation of a. It is a work in progress, and likely always will be. SIMPLE PENDULUM INTRODUCTION A simple pendulum has a mass m (bob) hanging from a string of length l fixed at a pivot point as shown in the diagram at the right. Find the maximum centripetal force and corresponding velocity value. pick a point on the path of the bob - as it passes its lowest point in the centre is usually easiest. The quickest way to go on from here is to plot a log graph as described further up the page. However, this method will add an additional step to the experiment. Pendulum Lesson Plans & Worksheets Reviewed by Teachers. 27m, the squared time period was 1. The bullet is stopped within the block and its momentum transferred to the pendulum. What is a seconds pendulum? 3. The pendulum bob is displaced and then released so that it. The period of oscillation, T i s calculated using the average reading divided by the number of oscillations, i. a graph plotted by taking t2 on y axis and l on x axis in an experiment of simple pendulum is a straight line what relationship between t2 and l does - Physics - TopperLearning.    This is a weight (or bob ) on the end of a massless cord suspended from a pivot , without friction. A second’s pendulum is one for which the period of oscillation is 2 seconds. the curve if the graph is part of a final report). , what is initial displacement, initial velocity, natural frequency and time period are explained. This value is half the period of oscillation of your pendulum. PHY191 Experiment 4: The Simple Pendulum 10/3/2014 Page 4 You can compute g from the period of the pendulum and the length of the string. Compile and upload the code. This experiment also deals with concept of measurement. To study variation of time period of a simple pendulum of a given length by taking bobs of same size but different masses and interpret the result. This is the first tutorial on using Excel to plot graphs in the Physics 3. The basic specifications of the Tektronix 3012B dual trace oscilloscope are summarized. SHM results whenever a restoring force is proportional to the displacement, a relationship often known as Hooke's Law when applied to springs. (ix) Plot a graph. ← Click on the number of any data point that you don't want included in your curve fit. Examples include the oscillations of a pendulum with a path back and forth along a circular arc and a mass oscillating lin-early up and down on a spring. Here is a graphic preview for all of the graph worksheets. You can vary friction and the strength of gravity. Graphs have to be properly labeled on the x-axis (the horizontal) and the y-axis (the vertical). The object of this experiment is to study simple harmonic motion of the simple pendulum and to measure the acceleration of gravity g. Measuring the mass of bob and effective length of simple pendulum (a) Effective length of the simple pendulum. It shows everything that is required of a graph to meet the Achieved level. For these experiments, egg-shaped fishing weights and a cork fishing float were used. Kater’s Pendulum Stuart Field and Eric Hazlett Abstract In this lab we will determine the value of the acceleration of gravity g by using a reversible pendulum, ﬁrst developed by Henry Kater in 1815. Simple pendulum Aim : Using a simple pendulum,plot L-T and L-T2 graphs. Joshi1, and Z. The practical test will contain enough instructions to enable candidates to carry out the experiment. 3, College Physics, Serway and Vuille The restoring force, F, of an ideal spring is said to obey Hooke’s law: F=−kx (1). Plot the relevant graph and determine the resistance and its uncertainty from this graph. Choose the type of graph that best presents your data. A Revolute Joint block provides the. ” It is sometimes convenient to specify the location of the axis of suspension S by its distance s from one end of the bar, instead of by its distance h from the center of gravity G. The above conclusions are sometimes referred as laws of a simple pendulum. The motion of a pendulum is a classic example of mechanical energy conservation. She asked about past experiments dealing with friction. 9 secrets of confident body language; 23 September 2019. During part three of the experiment, the period of the spring was measured as mass was varied while amplitude remained constant. Notice the anharmonic behavior at large amplitude. About oPhysics The oPhysics website is a collection of interactive physics simulations. The bars rather than starting at a common zero point, begin at first dependent variable value for that particular bar. This experiment will use a spring scale in place of calibrated weights to increase the force on a spring. Experiment 13 1 13 THE SIMPLE PENDULUM OBJECTIVE To measure the effects of amplitude, mass, and length on the period of a simple pendulum and by graphing to understand which of these parameters matter. Also calculate the same volume from the radius measured using Vernier callipers. For small amplitudes, the period of such a pendulum can be approximated by:. Our pendulum has been designed so that it’s simple to choose different pendulum lengths, support bearing locations, and joint types. It shows everything that is required of a graph to meet the Achieved level. The Simple pendulum lab report has been shifted to. That is, they vibrate. The apparatus set-up for this experiment is shown in Diagram 1. of a simple pendulum accurately, taking into account the parallax, human reflex and random errors. 18s (since this is a T 2 against L graph). simple harmonic oscillator (SHO) T = 2 m/k. Purpose of the experiment: to study tension of the physical pendulum; to determine acceleration of the free fall by. Using a simple pendulum, plot its L-T 2 graph and use it to find the effective length of second's pendulum. The massive object is affectionately referred to as the pendulum bob. Consider a double bob pendulum with masses m_1 and m_2 attached by rigid massless wires of lengths l_1 and l_2. From the graph of T2 against l, the final experimental value of g was found to be 9. For the purposes of this lab, the simple pendulum is modeled as a simple harmonic oscillator, but with the caveat that. pendulum changes when the length of the pendulum is varied, the dependent variable would be the pendulum's period, and the independent variable would be the pendulum's length. Published March 8, 2017 at 196 × 142 in Simple harmonic motion. the graph, and then check “Maximum” in the Statistics pull-down menu. The title for a graph goes at the BOTTOM of the graph and like a data table, includes a brief description of the kind of data the table contains, the date and location and any scientific names needed. The experiment is preformed as explained above. Sloping and Intersecting a Linear Function- This lesson discusses graphing, slope, x-intercept and y-intercept. With both pendulums at rest click REC. The period, T, of an object in simple harmonic motion is defined as the time for one complete cycle. The period of the pendulum is given by 2pi(L/g) ½, where L is the length of the pendulum and g is the acceleration due to gravity (9. Attach the pendulum apparatus to the lab post and suspend the pendulum bob. The Simple Pendulum In this laboratory, you will investigate the effects of a few different physical variables on the period of a simple pendulum. pendulum also introduces the physical principles of gravity and inertia. Topics Pendulum; Periodic Motion; Description Play with one or two pendulums and discover how the period of a simple pendulum depends on the length of the string, the mass of the pendulum bob, and the amplitude of the swing. Why Almost Everything You've Learned About Simple Pendulum Lab Report Graph Is Wrong.