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PAScar Accessory Track Set (2.2 Meter)

012-07558A

Credits

This  manual  authored  by:  Ann  &  John  Hanks

Teacher’s  guide  written  by:  Eric  Ayars

Equipment Return

If  this  product  needs  to  be  returned  to  PASCO  scien-
tific,  for  whatever  reason,  notify  PASCO  scientific  by
letter  or  phone  BEFORE  returning  the  product.    Upon
notification,  the  return  authorization  and  shipping
instructions  will  be  promptly  issued.

NOTE:

  NO EQUIPMENT WILL BE

ACCEPTED FOR RETURN WITHOUT AN
AUTHORIZATION.

When  returning  equipment  for  repair,  the  units  must
be  properly  packed.    Carriers  will  not  accept  responsi-
bility  for  damage  caused  by  improper  packing.    To  be
certain  the  unit  will  not  be  damaged  in  shipment,
observe  the  following  rules:

The  carton  must  be  strong  enough  for  the  item
shipped.

Make  certain  there  is  at  least  two  inches  of  packing
material  between  any  point  on  the  apparatus  and
the  inside  walls  of  the  carton.

Make  certain  that  the  packing  material  cannot  shift
in  the  box,  or  become  compressed,  thus  letting  the
instrument  come  in  contact  with  the  edge  of  the
box.

Address:

PASCO  scientific

10101  Foothills  Blvd.

P.O.  Box  619011

Roseville,  CA  95678-9011

Phone:

1-800-772-8700  (toll-free  in  U.S.A.)

or  (916)  786-3800

FAX:

(916)  786-3292

the  warranty.)    Shipping  costs  for  returning  the
equipment,  after  repair,  will  be  paid  by  PASCO
scientific.

Copyright Notice

The  PASCO  scientific 

Model  ME-6956  PAScar

Accessory  Track  Set  (2.2  Meter)

  manual  is  copy-

righted  and  all  rights  reserved.    However,  permission
is  granted  to  non-profit  educational  institutions  for
reproduction  of  any  part  of  this  manual,  providing  the
reproductions  are  used  only  for  their  laboratories  and
are  not  sold  for  profit.    Reproduction  under  any  other
circumstances,  without  the  written  consent  of  PASCO
scientific,  is  prohibited.

Limited Warranty

PASCO  scientific  warrants  this  product  to  be  free  from
defects  in  materials  and  workmanship  for  a  period  of
one  year  from  the  date  of  shipment  to  the  customer.
PASCO will repair or replace, at its option, any part of
the  product  which  is  deemed  to  be  defective  in
material  or  workmanship.  This  warranty  does  not
cover  damage  to  the  product  caused  by  abuse  or
improper  use.    Determination  of  whether  a  product
failure  is  the  result  of  a  manufacturing  defect  or
improper  use  by  the  customer  shall  be  made  solely  by
PASCO  scientific.    Responsibility  for  the  return  of
equipment  for  warranty  repair  belongs  to  the  cus-
tomer.    Equipment  must  be  properly  packed  to
prevent  damage  and  shipped  postage  or  freight
prepaid.    (Damage  caused  by  improper  packing  of  the
equipment  for  return  shipment  will  not  be  covered  by

Copyright, Warranty and Equipment Return

Please  feel  free  to  duplicate  this  manual
subject  to  the  copyright  restrictions
below.

Содержание ME-6956

Страница 1: ...rack Set 2 2m version Instruction Manual and Experiment Guide for the PASCO scientific Model ME 6956 Includes Teacher s Notes and Typical Experiment Results CAUTIO N M AG NET AVO ID CO NTACT W IT H CO...

Страница 2: ......

Страница 3: ...ion of Momentum in Collisions 9 Exp 3 Acceleration Down an Incline 11 Exp 4 Simple Harmonic Oscillator 15 Exp 5 Oscillations on an Incline 19 Exp 6 Springs in Series and Parallel 23 Exp 7 Newton s Sec...

Страница 4: ...equipment after repair will be paid by PASCO scientific Copyright Notice The PASCO scientific Model ME 6956 PAScar Accessory Track Set 2 2 Meter manual is copy righted and all rights reserved However...

Страница 5: ...ack ensures easy setup and accurate alignment with the lowest possible friction and it accomodates most linear motion experiments Features include Adjustable leveling feet Low friction wheel slots kee...

Страница 6: ...Stop has a round head screw on the top to allow easy attachment of springs string etc NOTE A small piece of double sided tape is attached to the ends of each storage tube so the tubes may be permanent...

Страница 7: ...ing the Pivot Clamp Square nut Bracket washer Short thumb screw Track Long thumb screw 2 Thread two of the long screws through the two holes in the bottom of each alu minum leveling foot The heads of...

Страница 8: ...o the end stops can slide past the feet without interference 3 Align the square nut within the groove on the desired side of the Dynamics Track Figure 5 Locate and adjust the end stop to the desired p...

Страница 9: ...Assemblies 1 Using a Philips screwdriver loosen the screws and remove the bottom cover plate NOTE A 1 Phillips point screw driver is re quired for removing the thread forming screws on the bottom of...

Страница 10: ...t Clamp Assembly 003 05019 1 Pivot clamp 648 04654 1 Long thumb screw 610 183 620 047 1 Short thumb screw 610 181 620 067 1 Washer 615 184 1 Square nut 614 054 1 Plunger bar catch cover 699 04658 1 Pl...

Страница 11: ...l speeds of the cars is equal to the ratio of the masses of the cars To simplify this experiment choose the starting point for the cars at rest so that the two cars reach the end of the track simultan...

Страница 12: ...OF UNEQUAL MASS Put two mass bars in one car one mass bar in the other Table 1 1 Data Analysis 1 For each of the cases calculate the distances traveled from the starting position to the end of the tr...

Страница 13: ...the Velcro pads on the ends of the cars Procedure 1 Level the track by setting a car on the track to see which way it rolls Adjust the leveling feet at the end of the track to raise or lower that end...

Страница 14: ...the first car a slow velocity and the second car a faster velocity so that the second car catches the first car Do this for both cases first with the 1M car and then first with the 3M car Part II Com...

Страница 15: ...t2 the acceleration can be calculated using Then a plot of acceleration versus sin should give a straight line with a slope equal to the accelera tion due to gravity g Procedure 1 Set up the track as...

Страница 16: ...difference between the initial and final positions of the car as given at the top of Table 3 1 3 Calculate the accelerations using the distance and times and record in Table 3 2 4 Measure the hypoten...

Страница 17: ...sin slope ______________________ difference _______________ Questions 1 Does your reaction time cause a greater percentage error for higher or lower angles 2 If the mass of the car is doubled how are...

Страница 18: ...14 PAScar Accessory Track Set 2 2 Meter 012 07558A Notes...

Страница 19: ...lot the force versus the distance the slope of the resulting straight line is equal to k Procedure 1 Use the balance to find the mass of the car Record this value at the top of Table 4 1 2 Level the t...

Страница 20: ...5 times and record this data in Table 4 2 Calculations Theoretical Period 1 Using the data in Table 4 1 plot force versus displacement Draw the best fit straight line through the data points and dete...

Страница 21: ...cent difference between the measured and theoretical values car alone difference ________________ car with mass difference ________________ Questions 1 Does the period of oscillation increase or decre...

Страница 22: ...18 PAScar Accessory Track Set 2 2 Meter 012 07558A Notes...

Страница 23: ...t forces to stretch the spring different distances When you plot the force versus distance the slope of the result ing straight line is equal to k Adjustable End Stop Angle of inclination Not included...

Страница 24: ...at steps 6 and 7 Calculations TheoreticalPeriod 1 Using the data in Table 5 1 calculate the force caused by the additional mass in the car F mg sin where is the angle of incline Plot force versus disp...

Страница 25: ...dividing these times by 3 and record the periods in Table 5 2 Questions 1 Does the period vary as the angle is changed 2 How do the experimental values compare with the theoretical values 3 Does the e...

Страница 26: ...22 PAScar Accessory Track Set 2 2 Meter 012 07558A Notes...

Страница 27: ...ombined in series or in parallel the spring constants add in different ways One possible way to add two spring constants is keffective k k 2k Another way is which means that Measuring k For a Single S...

Страница 28: ...distance and let it go Time 2 oscillations and record the time in Table 6 1 Repeat this measurement at least 5 times using the same initial displacement amplitude 5 Add a second spring in series as sh...

Страница 29: ...ta in Table 6 1 calculate the average time for 2 oscillations 2 Calculate the period by dividing these times by 2 and record the periods in Table 6 1 3 Using the periods and the mass of the car calcul...

Страница 30: ...h a ruler Observe the resulting acceleration This will be a qualitative measurement VARY THE FORCE Perform the first trial with the spring plunger cocked to the first possible position the least compr...

Страница 31: ...is equal to m1 m2 a when friction is ignored To obtain the acceleration the car will be started from rest and the time t it takes for it to travel a certain distance d will be measured Then since d 1...

Страница 32: ...l positions of the cart as given in Table 8 1 3 Calculate the accelerations and record in Table 8 2 4 For each case calculate the total mass multiplied by the acceleration and record in Table 8 2 5 Fo...

Страница 33: ...sulting straight line is equal to k The gravitational potential energy gained by a car as it climbs an incline is given by potential energy mgh where m is the mass of the car g is the acceleration due...

Страница 34: ...g feet 7 Remove the string from the car and cock the spring plunger to its maximum compression position Place the car against the end stop Measure the distance the spring plunger is compressed and rec...

Страница 35: ...ment Draw the best fit straight line through the data points and determine the slope of the line The slope is equal to the effective spring constant k k ______________ 2 Calculate the spring potential...

Страница 36: ...32 PAScar Accessory Track Set 2 2 Meter 012 07558A Notes...

Страница 37: ...ction initially and observe Add a mass bar to one car and repeat Experiment 13 Newton s Second Law III Repeat Experiment 8 with the track inclined so the pulley is on the high end and the car accelera...

Страница 38: ...apart Push the left cart into the middle cart which in turn will collide with the PAScar The carts will all stick together Note the resulting final velocity of the carts Experiment 19 Rocket Staging U...

Страница 39: ...ar it is on there is no difference when the cars are separated Teacher s Guide Experiment 1 Conservation of Energy in Explosions Experiment 2 Conservation of Momentum in Collisions NOTE Without some m...

Страница 40: ...Our value 3 3 low Experiment 3 Acceleration Down an Incline Answers to Questions 1 Assuming that reaction time is relatively con stant the percent error due to reaction time would be greater for shor...

Страница 41: ...d be less than 2 and it is not unusual to obtain errors of less than 0 5 Answers to Questions 1 The period of oscillation increases with mass The more massive car oscillates slower 2 The period is not...

Страница 42: ...as the spring is ex tended at greater angles the force constant is not constant The contribution due to friction also changes with angle 2 The experimental results should agree with theory to within...

Страница 43: ...d of the track when the springs are in series Notes on Calculations The two springs used for this experiment had spring constants of 1 53 and 1 60 Actual spring constants may vary from spring to sprin...

Страница 44: ...total mass times acceleration The difference between the two is the force of friction 3 The hanging mass is accelerating at the same rate as the car so both the hanging mass and the car s mass must b...

Страница 45: ...you won t lose valuable data If possible have the apparatus within reach when calling This makes descriptions of indi vidual parts much easier If your problem relates to the instruction manual note P...

Страница 46: ......

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