Finding acceleration from a ticker tape force and motion youtube. Thread the timer tape through the timer and use masking tape to attach the ticker tape. O level physics syllabus is designed to inclusively cater for all categories of learners. If your ticker tape is not gummed you will also need some glue. Download scientific diagram a sample setup which uses a ticker timer. Year 10 science ticker tape experiment free download as word doc. If this caused the distance between the dots to be shorter, then the velocity and acceleration would also be less than the accepted value, which is consistent with my results. You will measure distances on the spark timer tape, and then fit linear and quadratic functions to your data and plot theoretical and experimental results.
In kinematics forces causing motion are disregarded while dynamics deals with motion of objects and the forces causing them. Newtons 2 law of motion 19 february 20 demonstration. Mounting of the timer tape and carbon paper a the timer is opened by tipping up the upper portion as shown in the figure. In the laboratory, a tickertimer as shown in figure 2. This enables it to make 50 dots per second on a tickertape being pulled through it. Required equipment ticker timer ticker timer tape 100200 g mass discussion a mass attached to one end of the a ticker tape and is allowed to drop through a ticker tape timer. What is the initial velocity and final velocity of each of the following ticker timer tapes. Set up the apparatus as shown in the diagram switch the ticker time on and allow the trolley to move freely remove the ticker timer tape repeat changing the mass piece this changes the resultant force. This experiment is to measure the distance traveled and the speed of a piece of ticker tape using a ticker timer. Kinematics displacement, velocity, acceleration, 1 and 2. It is hinged at one end and held in place at the other by means of a magnet.
Calculating the acceleration of gravity using a ticker tape. The time interval between two adjacent dots on the tickertape is called one tick. Acceleration due to gravity behr freefall apparatus and spark timer you will perform an experiment to measure the acceleration due to gravity using the behr spark timer apparatus. Dec 28, 2006 1 the length of each tape represents the average velocity within the time interval. Clickingtapping the hot spot opens the interactive in fullscreen mode. The concept was defined based on the students lab and pencil and paper observations in order to make the concept concrete. We placed a tape through a vibrator that leaves a black dot on a tape for every 1100 s. Place a piece of adding machine tape about 2 ft long in the timer. Kinematics displacement, velocity, acceleration, 1. It allows us to measure precisely short intervals of time corresponding to short distances travelled. A ticker timer, a 12v ac power supply, ticker tape, two 4mm connecting leads and a pair of scissors. A dot diagram sometimes called ticker tape diagrams or oil drop diagrams represents the position of an object at constant intervals of time like every second with a dot.
Summary of methods lab exercise examination of ticker tape motion diagrams generated by an accelerating fan cart and a ticker tape timer. In the laboratory, a ticker timer as shown in figure 2. What are the functions of motion and acceleration in ticker tape diagrams. View the video tutorial to understand where to take time interval. Finally, it is possible that the ticker tape timer was not precise in its tick timing, which wouldve led to an incorrect spacing between the dots. We might expect the answers to be exactly the same as the distance between each of the drops is the same indicating the velocity is constant. Ticker timer problems what is the average velocity of the. Ticker timer problems what is the average velocity of the following ticker timer tapes. The velocity of a section of ticker timer tape can be found by knowing the time and displacement and applying the formula. What would be some sources of error while using a ticker tape. It consisted of a paper strip that ran through a machine called a stock ticker, which printed abbreviated company names as alphabetic symbols followed by numeric. A tickertimer consists of a small electrical vibrator which vibrates at the frequency of 50 hz. Thread a piece of tape through the slots on the timer.
A tickertimer consists of an electrical vibrator which vibrates 50 times per second. The dots from the ticker timer will be consistent only if the tape is pulled through quickly but if the tape is pulled through the time ticker slowly, the dots will be inconsistent and close to each other. Turn the tickertimer on and release the mass cleanly. The line of dots on the tape is called a ticker tape diagram. A 10,000 volt spark timer places spark dots on a waxed tape as an object falls freely. The first portion of the timer tape could look as follows after a typical experiment. Drop mass vertically aiming for the old text to avoid smashing linoleum stop ticker timer analysis. So we chose a dot, and registered the length between the dot before it, and after it to calculate the velocity at that dot. Free fall lab north hunterdonvoorhees regional high. Rip a ticker tape 30 cm shorter than the distance from the timer to the ground. Thread the paper tape through the craft stick paper guide so that it is under the tip of the pen, and one end is just past one of the timer edges. What would be some sources of error while using a ticker. Ticker timer, ticker tape, mass sets, meter stick, old physics text procedure. Since the spaces between the dots take such a short time 150 s the ticker timer is a very useful instrument for measuring short intervals of time.
Review this information with this quiz and worksheet. The pattern of dots reveals information about the nature of the motion. At right is a photo of the marks placed on the waxed tape. Place the timer tape in the timer being careful to allow the tape to pass on the correct side of the carbon paper. Since ticker timers make dots at a rate of 50 dots per second, each set of 5 dots takes 0. Ticker tape lab answers b to create a position time graph from a velocity time graph find the average velocity of each interval. Allows the tape timer to be mounted on a standard lab stand rod so that the paper path is either. The time interval between two adjacent dots on the ticker tape is called one tick. The car bon paper is mounted on a small pin sticking up from the bottom plate, the timer is closed, and the experiment can proceed. We have to count the number of spaces and not the number of dots themselves to measure the time taken the first dot at the direction of movement is the starting dot example. Ignore about 5 cm at the start of the tape and begin marking off equal distances for equal time intervals. This can be done by finding the area underneath the line at each specific interval and then plotting each value in accordance with its time interval on a positiontime graph. The velocity and acceleration of an object can be measured using a tickertape timer.
Most high school students, and all science major college students especially we engineers have experienced them. Pdf design of a handheldbased motion graphing application for. To analyse a ticker tape and calculate velocity equipment. The case has a tape guide and a carbon disc plug which can be moved to maximize the use of the discs. This enabled the vibrating steel strip to make 50 dots per second on the tickertape being pulled through it. The concept was defined as the time interval that motion appeared uniform. Oct 26, 2010 click here to learn the basics of a ticker tape timer. One problem will be the added mass and resistance of the ticker tape. Tickertimer experiments speed tactivities thinktac. The ticker tape timer will place a dot every 60th of a second along a piece of ticker tape, as the tape passes through the timer.
Sep 21, 2010 it was an experiment we did at school. Nov 25, 2017 the height of each strip is the actual distanced travelled in the time it takes the ticker timer to make 10 dots, i. You will also be testing your ability to read a ticker tape diagram. There is a second hotspot in the lowerright corner of the iframe. Year 10 science ticker tape experiment nature scribd. A ticker timer consists of a small electrical vibrator which vibrates at the frequency of 50 hz. First you shall evaluate your consequence with the theoretical cost.
Use masking tape to tape the protruding craft stick tabs of the timer to the table. The ticker timer makes dots on a paper tape every fiftieth of a second. A ticker timer consists of an electrical vibrator which vibrates 50 times per second. For the love of physics walter lewin may 16, 2011 duration. A cart moving down the ramp pulls the ticker tape that is attached to it. If you continue browsing the site, you agree to the use of cookies on this website. It takes its timing from the mains frequency and therefore prints 50 dots per second. The time interval between two adjacent dots on the tickertape. To use a ticker timer to measure and demonstrate both. This enables it to make 50 dots per second on a ticker tape being pulled through it. The result of an experiment to find the average speed of a toy car is shown below.
Pdf the design of handheldbased applications for learning support remains. It consisted of a paper strip that ran through a machine called a stock ticker, which printed abbreviated company names as alphabetic symbols followed by numeric stock transaction price and. In physics the tape is often used in what are generally called recording timers. You can measure the distances between the dots to see how far the object traveled during each 0. This ticker tape timer is housed in a tough molded plastic case. This added mass and resistance will change with time as well, so it will be very difficult to compensate for. Ticker timer and tape ticker timer trolley trolley track string mass pieces method. This can be done by finding the area underneath the line at each specific interval and then plotting each value in accordance with its time interval on a. There are some obvious sources of errors in the tape part of the experiment.
Repeat the experiment but this time pull the tape through the timer more quickly. From which you will deduce the proportion errors on your consequence, and right here comes the genuine stuff, you will could desire to seek for what brought about that errors. Acceleration due to gravity behr freefall apparatus and. Stopwatch, ticker tape timer, ticker tape, calculator, meter stick, ring stand support, pullback car kinematic equations writing a scientific lab report provide clear and thorough instructions ask student about key formulae provide a brief lab demo 8 text book. Ticker tap lab discussion questions schoolworkhelper. If you dont see any interesting for you, use our search form on bottom v. Rain bird isa 300 400 series sprinkler timer manual. Since it produces a dot every 60th of a second, every 6 dots on the ticker tape represents 0. So if a piece of tape is pulled through the timer for a second there will be 50 dots on it. The diagram shows a strip of paper tape that has been pulled under a vibrating arm by a car moving to the left. Tam khiet nguyen 10sci1 ticker timer experiment aim. The tape timer is a special device that makes dots on a ticker tape every 0. You will need trolleys, different masses, inclined plane, rubber bands, meter ruler, ticker tape apparatus, ticker timer, graph paper.
What is the acceleration of the last two ticker timer tapes. Thread the timer tape through the timer and use masking tape to attach the ticker tape to the vehicle. Analysis of sources of error the percent error for my rate. Physics notes form 3 free download kcse revision notes pdf. The name that motion interactive is shown in the iframe below. The tickertape timer consists of a steel strip that vibrates 50 times a second 50 hz. The arm is vibrating regularly, making 50 dots per second. A 2 only b 3 only c 1 and 2 only d 1 and 3 only homework equations the attempt at a solution the. With the timer vibrating, set the vehicle in motion. Jan 20, 20 for the love of physics walter lewin may 16, 2011 duration.
Dec 06, 2015 on this page you can read or download ticker timer project in pdf format. Time graph for ticker tape 200 dependent variable is lab 180 y 1. Use this information, your ruler and your calculator to calculate the initial velocity, the final velocity and the acceleration. Using this fact, you can calculate the speed of each of the strips andor the acceleration between the strips. The tape can drag a little as it runs through the printing head, slowing the speed of whatever is being measured. Feb 08, 2015 physics ticker timer introduction mr sai mun. The timer operates on 12 volts ac supply and produce 5060 dots per second depending on the main frequency. In this experiment, we are using a tape timer and a ticker tape as they will help us measure the gravity of earth or g which equals to 9. What is ticker tape it is a narrow paper tape which can be passed through printing devices that place symbols ranging from simple dots to alphanumeric symbols. Nelson physics 11 worksheet graph paper, rulers 2dimenssion, vectors and scalars.
Choose intervals so you have about 10 total and call each. The timer tape should be about 10 cm shorter than the fall height. Click here to learn the basics of a ticker tape timer. Physics form 4 force and motionchapter 2 study of linear motion tickertimer 1. It is accompanied by an actual set of distance data measured from the spark locations. The ticker tape timer produces marks or dots at regular intervals on to its special tape that is sensitive to pressure. The height of each strip is the actual distanced travelled in the time it takes the tickertimer to make 10 dots, i. Kinematics is the science of describing the motion of objects.
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