Measuring free fall acceleration with a spark timer. Kinematics is the science of describing the motion of objects. It allows us to measure precisely short intervals of time corresponding to short distances travelled. If you dont see any interesting for you, use our search form on bottom v. 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. Adjust the angle of inclination of the runway until the trolley moves with. The velocity of a section of ticker timer tape can be found by knowing the time and displacement and applying the formula. This is a video explaining data collection for the free fall lab used at finger lakes community college.
Year 10 science ticker tape experiment free download as word doc. Because this series sets the foundational understanding for future work on motion, it is important to get learners to do simple practical activities related to motion. Mark the tape from the first clear dot to the last clear dot every five time intervals which. Repeat the experiment at least three times, each time hanging another 100 g mass piece on the hook. If your ticker tape is not gummed you will also need some glue. A strobe picture will be created using a ticker which ticks 60 times per second. The distance is fairly easy to find, use a ruler, but if the object is. It takes its timing from the mains frequency and therefore prints 50 dots per second. There are some obvious sources of errors in the tape part of the experiment.
The diagram shows a strip of paper tape that has been pulled under a vibrating arm by a car moving to the left. Advice although the equations are given in the exam, it saves time and boosts selfconfidence to memorise them. Diagram above shows ticker tape chart that show the movement of the trolley. I mean that isnt that the ticker timer machine will also need 0.
To analyse a ticker tape and calculate velocity equipment. Ticker tap lab discussion questions 1 the average velocity for an interval can be found by finding the slope of that interval. Switch the ticker timer on and allow the trolley to be pulled down the slope by the mass piece. Ticker timer and tape ticker timer trolley trolley track string mass pieces method.
What are precautions to take when doing a practical. Ticker tape calculations might be hard but we are here to help. Tickertimer experiments speed tactivities thinktac. The total time can be determined by counting the number of white spaces and multiplying by 0. A strip of adding machine paper tape is passed underneath the tip of a. Sep 21, 2010 it was an experiment we did at school. The line of dots on the tape is called a ticker tape diagram.
This strobe picture will be used to make position vs. Be sure to feed the ticker timer tape through correctly. Put a disc of carbon paper on the pin in the timer reuse them as much as you can. This particular video tutorial explains an important spm exam question which every science stream students should know. Ticker is library for calling functions repeatedly with a certain period. Pencil, black pen, 1 ticker timer, paper ribbon, 1 metre ruler, battery pack with alternating current, connecting wires method. We placed a tape through a vibrator that leaves a black dot on a tape for every 1100 s. The tape timer is a special device that makes dots on a ticker tape every 0. Carbon paper was attached to the ticker machine and ticker tape was fed through to the ticker machine. Connect the ticker timer to a lowvoltage power supply. On this page you can read or download ticker timer project in pdf format. Repeat the experiment but this time pull the tape through the timer more quickly. Ticker tape timer ticker tape slope should be as frictionless as possible.
Ticker timer with power supply ticker timer tape runway wooden block scotch or cellophane tape scale balance plasticine or velcro ruler method. Since it produces a dot every 60th of a second, every 6 dots on the ticker tape represents 0. Feb 08, 2015 physics ticker timer introduction mr sai mun. The tape can drag a little as it runs through the printing head, slowing the speed of whatever is being measured. The ticker tape timer produces marks or dots at regular intervals on to its special tape that is sensitive to pressure. Using the tangent method or midpoint method to find the riserun will give you the average velocity of the cart at that interval. Name physics calculating velocity using ticker timer tapes. So we chose a dot, and registered the length between the dot before it, and after it to calculate the velocity at that dot. Plasticine wooden block trolley a trolley b ticker tape ticker. One means of describing a motion is through the use of a diagram.
The ticker timer is simply a piece of apparatus that we use to measure time. Review this information with this quiz and worksheet. Newtons 2 law of motion 19 february 20 demonstration. The timer operates on 12 volts ac supply and produce 5060 dots per second depending on the main frequency.
Wind up the dune buggy and turn on the ticker timer set to 10 hz and release the car. A tickertimer consists of an electrical vibrator which vibrates 50 times per second. 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. Tape approximately 2 meters of ticker tape to the crossbar of the pullback dune buggy and thread the other end through the ticker tape timer. Low friction pulley at the end of the runwaynewton weights on the cart and on the scale pan. The tickertape in figure above was produced by a toy car moving down a tilted runway. Click here to learn the basics of a ticker tape timer. A typical ticker timer is plugged into a household outlet.
The distance is fairly easy to find, use a ruler, but if the object is moving quickly the time it takes will be hard to measure. 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 video teaches you how to solve questions on the ticker tape topic. Ticker tap lab discussion questions schoolworkhelper. I need two possible errors which could have occurred during an experiment involving a 50g mass attached to a falling piece of tickertimer tape. The purpose of this experiment is to determine the acceleration due to gravity. One cart on the runway attached to a ticker timerscale pan hanging off the side of the table attached to the trolley by a string. A sample set of ticker tape length is shown in the diagram. Oct 26, 2010 click here to learn the basics of a ticker tape timer. Year 10 science ticker tape experiment nature scribd. Sometimes they are referred to as the kinematic equations. 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. A tickertimer consists of a small electrical vibrator which vibrates at the frequency of 50 hz.
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. Using this fact, you can calculate the speed of each of the strips andor the acceleration between the strips. Most high school students, and all science major college students especially we engineers have experienced them. You can measure the distances between the dots to see how far the object traveled during each 0. The ticker timer should be on its side overhanging the bench. The height of each strip is the actual distanced travelled in the time it takes the tickertimer to make 10 dots, i. To use a ticker timer to measure and demonstrate both constant speed and acceleration. Rain bird isa 300 400 series sprinkler timer manual. Tam khiet nguyen 10sci1 tickertimer experiment aim. The ticker machine was turned on turnt and the car was released and stopped as it. Ticker timer practical lesson period 3 thursday, 221009 line 1 11. Analyse the ticker tape, calculate the acceleration and tabulate the results. From these measurements it is possible to calculate velocity and acceleration. One cart on the runway attached to a ticker timer scale pan hanging off the side of the table attached to the trolley by a string.
To investigate the acceleration of a car rolling down a ramp. Elevate one end of the bench and allow the trolley to accelerate down hill. In the laboratory, a tickertimer as shown in figure 2. Calculating the acceleration of gravity using a ticker tape. Connect the wires provided from the ticker timer to the ac power supplynot dc, make sure the power supply is turned off and the power supply is set to 10 volts. Dec 06, 2015 on this page you can read or download ticker timer project in pdf format. Learners are shown important units and how to convert between units. Turn on the power so that the ticker timer is vibrating.
Thread a piece of tape through the slots on the timer. Tape a 1m length of ticker tape onto a 500g weight. This timer draws its inspiration from the pssc physics ticker tape. I have already got that the tape could have snapped or ripped, but i need one more, please help. The time interval between two adjacent dots on the tickertape is called one tick. During the experiment there were difficulties that sometimes occurred with the ticker tape timer. The case has a tape guide and a carbon disc plug which can be moved to maximize the use of the discs. To avoid crash issues i recommend use of ticker instead of timer. Find the acceleration of gravity using a ticker timer and 10 washers. A ticker timer, a 12v ac power supply, ticker tape, two 4mm connecting leads and a pair of scissors.
Homework statement refer to the uploaded file, which of the following statements isare correct. The average velocity of the cart per interval dependent. A ramp was angled at 3 degrees and a ticker machine was attached at the higher end of the ramp. A long tape is attached to a moving object and threaded through a device that places a tick upon the tape at. This ticker tape timer is housed in a tough molded plastic case. Newtons second law of motion deals with unbalanced forces. Connect free end of tape to device under experiment. If the tickertape timer produced 50 dots per second, find the acceleration of the toy car. This enables it to make 50 dots per second on a tickertape being pulled through it.
What are the functions of motion and acceleration in ticker tape diagrams. Label 2 tapes low height, 2 others medium height, at the last 2 high height. The distance that the tape has traveled in the time that you pulled it through the ticker timer is simply the distance between the first and last dots on the tape. 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. Mass must be kept constantrunway is sloped so that the cart moves with a constant velocity when given a gentle push. A common way of analyzing the motion of objects in physics labs is to perform a ticker tape analysis.
The pattern of dots reveals information about the nature of the motion. You will also be testing your ability to read a ticker tape diagram. There are two timers in esp8266 timer0 and timer1, one timer is used by its wifi functions. This experiment is to measure the distance traveled and the speed of a piece of ticker tape using a ticker timer. If you continue browsing the site, you agree to the use of cookies on this website.
Label on each tape the height of you apparatus from top of incline to the table top. Using 3 ft of ticker timer tape, attach a group of 10 washers to the end. The arm is vibrating regularly, making 50 dots per second. Tam khiet nguyen 10sci1 ticker timer experiment aim. When you work out the speed of an object you need to know how far it goes in a certain time.
1043 530 1054 758 1548 30 280 201 1354 674 183 1544 96 1213 718 94 1274 1238 1088 1235 1537 1192 840 1244 1407 391 874 621 451 1482 983 710 730