SlideShare uma empresa Scribd logo
1 de 26
Baixar para ler offline
~Pendulum~

 Bil   Name                         Matrics No.
 1.    Nik Ikhwan Bin Nik Li        D20101037491
 2.    Muhammad Yunus Bin Hamid     D20101037440
 3.    Muhammad Riyadh Bin Roslan   D20101037482
~Engage~


Does length of string affect the period of
               oscillation?
•Pendulum is a hypothetical pendulum suspended by a weightless frictionless thread
of constant length.

•The pendulum’s period is tested by using different length of string.

•Which length of string that slower and faster the period of the pendulum’s
oscillation?
What other         What can you get
      application that   from observing
      similar to         the experiment?
      pendulum?



                             What is the graph
How to avoid                 shape?
damping?
~EMPOWER~


DATA FINDINGS
PROCEDURE
1. The apparatus was set up as shown in figure 1.
2. The length of the string that attach to the
   constant mass was set as 20 cm length.
3. The pendulum is displaced so that it performed
   oscillation of simple harmonic motion.
4. The data were recorded automatically by using
   motion detector.
5. Stop the experiment after the pendulum has make
   20 oscillations.
6. The period T for the 20 oscillations were
   determined.
7. The experiment was repeated by substituted the
   length of the string by using 10 cm length
Figure 1
Data Studio Software
Pendulum and sensor
• Result
       Graph of Angular Positon (°) Againts Time (s) For
         String Length 20 cm
• Result


       Graph of Angular Positon (°) Againts Time (s) For
         String Length 10 cm
Data analysis

From the graph obtained, we can conclude the data
as table below
            Length      Time taken Period, T
            of String   to
            (l)         complete
                        20
                        0scilations
            20 cm       19.23 s    0.96 s
            10 cm       15.89 s    0.79 s
Data analysis

  Gravity calculation
                        Equation 1




                        Equation 2
Data analysis
   Gravity calculation




       By substitute the data into the equation
Data analysis
   Gravity calculation

     From the experiment, the gravitational value
        obtained was ,




     The theoretical value for the gravitational
       acceleration is
Data analysis
    Gravity calculation
   Formula for "   Percentage Error":


   (The "|" symbols mean absolute value, so negatives become positive)
Discussion
  • From the experiment, we use data logger as the medium to detect
    the time and the angular positions of the pendulum
  • From the graph, the time to complete 20 oscillations can be
    determine. The period calculated using time to complete 20
    oscillations divided by 20.
  • The time taken 20 oscilation for 20 cm l string was 19.23 s and the
    time taken for 10 cm string was 15.89 s. from the formula below




    The time taken for oscillation, T is directly proportional to the string
    length, l. Therefore, the longer the l, the longer the T.
• By using the formula:




The acceleration of gravity is calculated was
• The percentage error calculated in this
  experiment is
• This indicated that there were some errors that
  occurred during the experiment process. There
  errors could be:
  1) Air resistance (solution: do the experiment
  at the vacuum condition)
  2) Human error (solution: measured the length
  of l precisely and carefully)
Conclusion
• From the experiment, the value of gravitational
  acceleration obtained is           is         percentage
  error compare to the theoretical value which is
• The longer the length of string, the longer the period for
  oscillation taken.
• The data login application used was Data Studio which
  the data reading taking automatically by the computer.
~Enhance~


APPLICATION OF PENDULUM.
Case


Firefighters had to rescue a boy aged 10 that
carried by the water flow to other side of river.
Which rope should be used by the firefighters to
get to the other side in the short time??
Which Rope should the Fireman Use??




    5 meter                      7 meter


Why??

Explain?
Pendulum~
 In this experiment that shown by the graph, the
  longer the string, it will take longer time to stop.

 This item swing longer if we can increase the length
  of string.

 We can save our energy to and can just look it swing
  in our office.

 Increase the length will make this decorative item will
  make it swing for a longer period.
Pendulum~
• The baby will move their body during they sleep. So this
  cradle will swing because it follows principle of pendulum.

• Swinging may make disturb the baby and make them wake up
  and cry

• Based on the experiment we know that, when we release the
  ball, the shorter string will make a shorter time to complete
  one oscillation

• We know that picture A have long string and near to the
  ground compare to picture B which is have shorter string.

• The cradle A will swing slowly compare to cradle B that may
  swing from side to side more faster which can disturb your
  baby when sleep.

Mais conteúdo relacionado

Mais procurados

9.4 - Orbital Motion & Kepler's third law
9.4 - Orbital Motion & Kepler's third law9.4 - Orbital Motion & Kepler's third law
9.4 - Orbital Motion & Kepler's third lawsimonandisa
 
AP Physics - Chapter 2 Powerpoint
AP Physics - Chapter 2 PowerpointAP Physics - Chapter 2 Powerpoint
AP Physics - Chapter 2 PowerpointMrreynon
 
Gelombang elektromagnetik
Gelombang elektromagnetikGelombang elektromagnetik
Gelombang elektromagnetikLeoiska Messi
 
Physics lab manual
Physics lab manualPhysics lab manual
Physics lab manualdevadasvijan
 
Bab 5 impuls dan momentum
Bab 5 impuls dan momentumBab 5 impuls dan momentum
Bab 5 impuls dan momentumOddy Syaputra
 
optika tentang difraksi interferensi
optika tentang difraksi interferensioptika tentang difraksi interferensi
optika tentang difraksi interferensiAjeng Rizki Rahmawati
 
All independence movements of latin america
All independence movements of latin americaAll independence movements of latin america
All independence movements of latin americaangiematheny
 
L0 preinforme Péndulo Simple
L0 preinforme Péndulo SimpleL0 preinforme Péndulo Simple
L0 preinforme Péndulo SimpleKaren Serrano
 
19.3 japan returns to isolation
19.3 japan returns to isolation19.3 japan returns to isolation
19.3 japan returns to isolationEdgar Huff
 
AP Physics - Chapter 4 Powerpoint
AP Physics - Chapter 4 PowerpointAP Physics - Chapter 4 Powerpoint
AP Physics - Chapter 4 PowerpointMrreynon
 
AP Physics - Chapter 3 Powerpoint
AP Physics - Chapter 3 PowerpointAP Physics - Chapter 3 Powerpoint
AP Physics - Chapter 3 PowerpointMrreynon
 
Fisika - Momen Gaya & Momen Inersia
Fisika - Momen Gaya & Momen InersiaFisika - Momen Gaya & Momen Inersia
Fisika - Momen Gaya & Momen InersiaRamadhani Sardiman
 
Listrik Statis Power Point.pptx
Listrik Statis Power Point.pptxListrik Statis Power Point.pptx
Listrik Statis Power Point.pptxummimutmainah
 
1.3 refraction Fizik SPM - Pembiasan Gelombang
1.3 refraction Fizik SPM - Pembiasan Gelombang1.3 refraction Fizik SPM - Pembiasan Gelombang
1.3 refraction Fizik SPM - Pembiasan GelombangCikgu Fizik
 
LAPORAN PRAKTIKUM FISIKA : Tetapan Pegas
LAPORAN PRAKTIKUM FISIKA : Tetapan PegasLAPORAN PRAKTIKUM FISIKA : Tetapan Pegas
LAPORAN PRAKTIKUM FISIKA : Tetapan Pegasyudhodanto
 
2 hasil pengamata atwood
2 hasil pengamata atwood2 hasil pengamata atwood
2 hasil pengamata atwoodBayu Pranata
 
Belair National Park - Plan of Management
Belair National Park - Plan of ManagementBelair National Park - Plan of Management
Belair National Park - Plan of ManagementPaul Boundy
 

Mais procurados (20)

9.4 - Orbital Motion & Kepler's third law
9.4 - Orbital Motion & Kepler's third law9.4 - Orbital Motion & Kepler's third law
9.4 - Orbital Motion & Kepler's third law
 
AP Physics - Chapter 2 Powerpoint
AP Physics - Chapter 2 PowerpointAP Physics - Chapter 2 Powerpoint
AP Physics - Chapter 2 Powerpoint
 
Dinamika gerak (Gaya Sentripetal)
Dinamika gerak (Gaya Sentripetal)Dinamika gerak (Gaya Sentripetal)
Dinamika gerak (Gaya Sentripetal)
 
Gelombang elektromagnetik
Gelombang elektromagnetikGelombang elektromagnetik
Gelombang elektromagnetik
 
Physics lab manual
Physics lab manualPhysics lab manual
Physics lab manual
 
Bab 5 impuls dan momentum
Bab 5 impuls dan momentumBab 5 impuls dan momentum
Bab 5 impuls dan momentum
 
Hukum bernoulli
Hukum bernoulliHukum bernoulli
Hukum bernoulli
 
optika tentang difraksi interferensi
optika tentang difraksi interferensioptika tentang difraksi interferensi
optika tentang difraksi interferensi
 
All independence movements of latin america
All independence movements of latin americaAll independence movements of latin america
All independence movements of latin america
 
L0 preinforme Péndulo Simple
L0 preinforme Péndulo SimpleL0 preinforme Péndulo Simple
L0 preinforme Péndulo Simple
 
19.3 japan returns to isolation
19.3 japan returns to isolation19.3 japan returns to isolation
19.3 japan returns to isolation
 
AP Physics - Chapter 4 Powerpoint
AP Physics - Chapter 4 PowerpointAP Physics - Chapter 4 Powerpoint
AP Physics - Chapter 4 Powerpoint
 
AP Physics - Chapter 3 Powerpoint
AP Physics - Chapter 3 PowerpointAP Physics - Chapter 3 Powerpoint
AP Physics - Chapter 3 Powerpoint
 
Circular motion
Circular motionCircular motion
Circular motion
 
Fisika - Momen Gaya & Momen Inersia
Fisika - Momen Gaya & Momen InersiaFisika - Momen Gaya & Momen Inersia
Fisika - Momen Gaya & Momen Inersia
 
Listrik Statis Power Point.pptx
Listrik Statis Power Point.pptxListrik Statis Power Point.pptx
Listrik Statis Power Point.pptx
 
1.3 refraction Fizik SPM - Pembiasan Gelombang
1.3 refraction Fizik SPM - Pembiasan Gelombang1.3 refraction Fizik SPM - Pembiasan Gelombang
1.3 refraction Fizik SPM - Pembiasan Gelombang
 
LAPORAN PRAKTIKUM FISIKA : Tetapan Pegas
LAPORAN PRAKTIKUM FISIKA : Tetapan PegasLAPORAN PRAKTIKUM FISIKA : Tetapan Pegas
LAPORAN PRAKTIKUM FISIKA : Tetapan Pegas
 
2 hasil pengamata atwood
2 hasil pengamata atwood2 hasil pengamata atwood
2 hasil pengamata atwood
 
Belair National Park - Plan of Management
Belair National Park - Plan of ManagementBelair National Park - Plan of Management
Belair National Park - Plan of Management
 

Destaque

SIMPLE PENDULUM Slideshare
SIMPLE PENDULUM SlideshareSIMPLE PENDULUM Slideshare
SIMPLE PENDULUM Slidesharekhadimol
 
The simple pendulum
The simple pendulumThe simple pendulum
The simple pendulumvn24
 
Gravity and motion
Gravity and motionGravity and motion
Gravity and motionTekZeno
 
13.1.1 Shm Simple Pendulums
13.1.1 Shm Simple Pendulums13.1.1 Shm Simple Pendulums
13.1.1 Shm Simple PendulumsChris Staines
 
Physics M2 Hooke's Law applications -part 1
Physics M2 Hooke's Law applications -part 1 Physics M2 Hooke's Law applications -part 1
Physics M2 Hooke's Law applications -part 1 eLearningJa
 
Physics M2 Hooke's Law Applications part 2
Physics M2 Hooke's Law Applications part 2 Physics M2 Hooke's Law Applications part 2
Physics M2 Hooke's Law Applications part 2 eLearningJa
 
Simple Harmonic Motion - A2 Physics
Simple Harmonic Motion - A2 PhysicsSimple Harmonic Motion - A2 Physics
Simple Harmonic Motion - A2 PhysicsTibor Astrab
 
Iaetsd modelling and controller design of cart inverted pendulum system using...
Iaetsd modelling and controller design of cart inverted pendulum system using...Iaetsd modelling and controller design of cart inverted pendulum system using...
Iaetsd modelling and controller design of cart inverted pendulum system using...Iaetsd Iaetsd
 
1 mrac for inverted pendulum
1 mrac for inverted pendulum1 mrac for inverted pendulum
1 mrac for inverted pendulumnazir1988
 
Perpetual Motion Generator - Shocking Truth
Perpetual Motion Generator - Shocking TruthPerpetual Motion Generator - Shocking Truth
Perpetual Motion Generator - Shocking Truthkash455
 
Inverted Pendulum
Inverted PendulumInverted Pendulum
Inverted PendulumCarlos
 
Semi Perpetual Motion Machine(ppt)
Semi Perpetual Motion Machine(ppt)Semi Perpetual Motion Machine(ppt)
Semi Perpetual Motion Machine(ppt)Harsh Gupta
 

Destaque (20)

SIMPLE PENDULUM Slideshare
SIMPLE PENDULUM SlideshareSIMPLE PENDULUM Slideshare
SIMPLE PENDULUM Slideshare
 
The simple pendulum
The simple pendulumThe simple pendulum
The simple pendulum
 
Simple pendulum
Simple pendulumSimple pendulum
Simple pendulum
 
Kater's
Kater'sKater's
Kater's
 
Pendulum
PendulumPendulum
Pendulum
 
Pendulum
PendulumPendulum
Pendulum
 
Simple pendulum
Simple pendulumSimple pendulum
Simple pendulum
 
Gravitation
GravitationGravitation
Gravitation
 
Gravity and motion
Gravity and motionGravity and motion
Gravity and motion
 
13.1.1 Shm Simple Pendulums
13.1.1 Shm Simple Pendulums13.1.1 Shm Simple Pendulums
13.1.1 Shm Simple Pendulums
 
Physics M2 Hooke's Law applications -part 1
Physics M2 Hooke's Law applications -part 1 Physics M2 Hooke's Law applications -part 1
Physics M2 Hooke's Law applications -part 1
 
Physics M2 Hooke's Law Applications part 2
Physics M2 Hooke's Law Applications part 2 Physics M2 Hooke's Law Applications part 2
Physics M2 Hooke's Law Applications part 2
 
Simple Harmonic Motion - A2 Physics
Simple Harmonic Motion - A2 PhysicsSimple Harmonic Motion - A2 Physics
Simple Harmonic Motion - A2 Physics
 
Iaetsd modelling and controller design of cart inverted pendulum system using...
Iaetsd modelling and controller design of cart inverted pendulum system using...Iaetsd modelling and controller design of cart inverted pendulum system using...
Iaetsd modelling and controller design of cart inverted pendulum system using...
 
Kinetic energy
Kinetic energyKinetic energy
Kinetic energy
 
1 mrac for inverted pendulum
1 mrac for inverted pendulum1 mrac for inverted pendulum
1 mrac for inverted pendulum
 
Physics ch 10
Physics ch 10Physics ch 10
Physics ch 10
 
Perpetual Motion Generator - Shocking Truth
Perpetual Motion Generator - Shocking TruthPerpetual Motion Generator - Shocking Truth
Perpetual Motion Generator - Shocking Truth
 
Inverted Pendulum
Inverted PendulumInverted Pendulum
Inverted Pendulum
 
Semi Perpetual Motion Machine(ppt)
Semi Perpetual Motion Machine(ppt)Semi Perpetual Motion Machine(ppt)
Semi Perpetual Motion Machine(ppt)
 

Semelhante a Pendulum~

Pendulum 121125034647-phpapp01
Pendulum 121125034647-phpapp01Pendulum 121125034647-phpapp01
Pendulum 121125034647-phpapp01yunus hamid
 
Pendulum ssi
Pendulum ssiPendulum ssi
Pendulum ssimuhd faiz
 
Acceleration due to gravity
Acceleration due to gravityAcceleration due to gravity
Acceleration due to gravityRITURAJ DAS
 
F4 Experiments
F4 ExperimentsF4 Experiments
F4 Experimentsmarjerin
 
PHYSICS INTERNAL ASSESSMENT IBDP| PHYSICS IA
PHYSICS INTERNAL ASSESSMENT IBDP| PHYSICS IA PHYSICS INTERNAL ASSESSMENT IBDP| PHYSICS IA
PHYSICS INTERNAL ASSESSMENT IBDP| PHYSICS IA ZainAhmed119
 
To Study the Motion of the Pendulum
To Study the Motion of the PendulumTo Study the Motion of the Pendulum
To Study the Motion of the PendulumVanshPatil7
 
Experiment 1 the relationship between the length of a smple pemdulum and the ...
Experiment 1 the relationship between the length of a smple pemdulum and the ...Experiment 1 the relationship between the length of a smple pemdulum and the ...
Experiment 1 the relationship between the length of a smple pemdulum and the ...Lee Kai Jia
 
measurement units slideshow chapter one pdf
measurement units slideshow chapter one pdfmeasurement units slideshow chapter one pdf
measurement units slideshow chapter one pdf7gxrufzxu
 
Physical quantities, units & measurements complete
Physical quantities, units & measurements completePhysical quantities, units & measurements complete
Physical quantities, units & measurements completeMak Dawoodi
 
Reerence notes for igcse physics year10 2016
Reerence notes for igcse physics year10 2016Reerence notes for igcse physics year10 2016
Reerence notes for igcse physics year10 2016Ivan mulumba
 
Form 4 experiments all topics
Form 4 experiments all topicsForm 4 experiments all topics
Form 4 experiments all topicsCarwoy Rock
 
Engineering. physics lab manual 2014-15-05.03.2015(1)
Engineering. physics lab manual 2014-15-05.03.2015(1)Engineering. physics lab manual 2014-15-05.03.2015(1)
Engineering. physics lab manual 2014-15-05.03.2015(1)kveerabhadrarao1
 
NCV 4 Mathematical Literacy Hands-On Support Slide Show - Module 1 Part 2
NCV 4 Mathematical Literacy Hands-On Support Slide Show - Module 1 Part 2NCV 4 Mathematical Literacy Hands-On Support Slide Show - Module 1 Part 2
NCV 4 Mathematical Literacy Hands-On Support Slide Show - Module 1 Part 2Future Managers
 
Concept of mass 1.5
Concept of mass 1.5Concept of mass 1.5
Concept of mass 1.5Mai Mi
 
Quantum Statistical Geometry #2
Quantum Statistical Geometry #2Quantum Statistical Geometry #2
Quantum Statistical Geometry #2Dann Passoja
 
Lab Exercise 5 Centripetal AccelerationFollow the instructions an.docx
Lab Exercise 5 Centripetal AccelerationFollow the instructions an.docxLab Exercise 5 Centripetal AccelerationFollow the instructions an.docx
Lab Exercise 5 Centripetal AccelerationFollow the instructions an.docxssuser47f0be
 

Semelhante a Pendulum~ (20)

Pendulum 121125034647-phpapp01
Pendulum 121125034647-phpapp01Pendulum 121125034647-phpapp01
Pendulum 121125034647-phpapp01
 
Pendulum ssi
Pendulum ssiPendulum ssi
Pendulum ssi
 
Acceleration due to gravity
Acceleration due to gravityAcceleration due to gravity
Acceleration due to gravity
 
Practicas de fisica 1
Practicas de fisica 1Practicas de fisica 1
Practicas de fisica 1
 
F4 Experiments
F4 ExperimentsF4 Experiments
F4 Experiments
 
PHYSICS INTERNAL ASSESSMENT IBDP| PHYSICS IA
PHYSICS INTERNAL ASSESSMENT IBDP| PHYSICS IA PHYSICS INTERNAL ASSESSMENT IBDP| PHYSICS IA
PHYSICS INTERNAL ASSESSMENT IBDP| PHYSICS IA
 
To Study the Motion of the Pendulum
To Study the Motion of the PendulumTo Study the Motion of the Pendulum
To Study the Motion of the Pendulum
 
Experiment 1 the relationship between the length of a smple pemdulum and the ...
Experiment 1 the relationship between the length of a smple pemdulum and the ...Experiment 1 the relationship between the length of a smple pemdulum and the ...
Experiment 1 the relationship between the length of a smple pemdulum and the ...
 
Unit and Measure
Unit and MeasureUnit and Measure
Unit and Measure
 
measurement units slideshow chapter one pdf
measurement units slideshow chapter one pdfmeasurement units slideshow chapter one pdf
measurement units slideshow chapter one pdf
 
Physical quantities, units & measurements complete
Physical quantities, units & measurements completePhysical quantities, units & measurements complete
Physical quantities, units & measurements complete
 
Reerence notes for igcse physics year10 2016
Reerence notes for igcse physics year10 2016Reerence notes for igcse physics year10 2016
Reerence notes for igcse physics year10 2016
 
Form 4 experiments all topics
Form 4 experiments all topicsForm 4 experiments all topics
Form 4 experiments all topics
 
Engineering. physics lab manual 2014-15-05.03.2015(1)
Engineering. physics lab manual 2014-15-05.03.2015(1)Engineering. physics lab manual 2014-15-05.03.2015(1)
Engineering. physics lab manual 2014-15-05.03.2015(1)
 
NCV 4 Mathematical Literacy Hands-On Support Slide Show - Module 1 Part 2
NCV 4 Mathematical Literacy Hands-On Support Slide Show - Module 1 Part 2NCV 4 Mathematical Literacy Hands-On Support Slide Show - Module 1 Part 2
NCV 4 Mathematical Literacy Hands-On Support Slide Show - Module 1 Part 2
 
Concept of mass 1.5
Concept of mass 1.5Concept of mass 1.5
Concept of mass 1.5
 
Measurement
MeasurementMeasurement
Measurement
 
Measurement
MeasurementMeasurement
Measurement
 
Quantum Statistical Geometry #2
Quantum Statistical Geometry #2Quantum Statistical Geometry #2
Quantum Statistical Geometry #2
 
Lab Exercise 5 Centripetal AccelerationFollow the instructions an.docx
Lab Exercise 5 Centripetal AccelerationFollow the instructions an.docxLab Exercise 5 Centripetal AccelerationFollow the instructions an.docx
Lab Exercise 5 Centripetal AccelerationFollow the instructions an.docx
 

Pendulum~

  • 1. ~Pendulum~ Bil Name Matrics No. 1. Nik Ikhwan Bin Nik Li D20101037491 2. Muhammad Yunus Bin Hamid D20101037440 3. Muhammad Riyadh Bin Roslan D20101037482
  • 2. ~Engage~ Does length of string affect the period of oscillation?
  • 3. •Pendulum is a hypothetical pendulum suspended by a weightless frictionless thread of constant length. •The pendulum’s period is tested by using different length of string. •Which length of string that slower and faster the period of the pendulum’s oscillation?
  • 4. What other What can you get application that from observing similar to the experiment? pendulum? What is the graph How to avoid shape? damping?
  • 6. PROCEDURE 1. The apparatus was set up as shown in figure 1. 2. The length of the string that attach to the constant mass was set as 20 cm length. 3. The pendulum is displaced so that it performed oscillation of simple harmonic motion. 4. The data were recorded automatically by using motion detector. 5. Stop the experiment after the pendulum has make 20 oscillations. 6. The period T for the 20 oscillations were determined. 7. The experiment was repeated by substituted the length of the string by using 10 cm length
  • 10. • Result Graph of Angular Positon (°) Againts Time (s) For String Length 20 cm
  • 11. • Result Graph of Angular Positon (°) Againts Time (s) For String Length 10 cm
  • 12. Data analysis From the graph obtained, we can conclude the data as table below Length Time taken Period, T of String to (l) complete 20 0scilations 20 cm 19.23 s 0.96 s 10 cm 15.89 s 0.79 s
  • 13. Data analysis Gravity calculation Equation 1 Equation 2
  • 14. Data analysis Gravity calculation By substitute the data into the equation
  • 15. Data analysis Gravity calculation From the experiment, the gravitational value obtained was , The theoretical value for the gravitational acceleration is
  • 16. Data analysis Gravity calculation Formula for " Percentage Error": (The "|" symbols mean absolute value, so negatives become positive)
  • 17. Discussion • From the experiment, we use data logger as the medium to detect the time and the angular positions of the pendulum • From the graph, the time to complete 20 oscillations can be determine. The period calculated using time to complete 20 oscillations divided by 20. • The time taken 20 oscilation for 20 cm l string was 19.23 s and the time taken for 10 cm string was 15.89 s. from the formula below The time taken for oscillation, T is directly proportional to the string length, l. Therefore, the longer the l, the longer the T.
  • 18. • By using the formula: The acceleration of gravity is calculated was • The percentage error calculated in this experiment is • This indicated that there were some errors that occurred during the experiment process. There errors could be: 1) Air resistance (solution: do the experiment at the vacuum condition) 2) Human error (solution: measured the length of l precisely and carefully)
  • 19. Conclusion • From the experiment, the value of gravitational acceleration obtained is is percentage error compare to the theoretical value which is • The longer the length of string, the longer the period for oscillation taken. • The data login application used was Data Studio which the data reading taking automatically by the computer.
  • 21. Case Firefighters had to rescue a boy aged 10 that carried by the water flow to other side of river. Which rope should be used by the firefighters to get to the other side in the short time??
  • 22. Which Rope should the Fireman Use?? 5 meter 7 meter Why?? Explain?
  • 24.  In this experiment that shown by the graph, the longer the string, it will take longer time to stop.  This item swing longer if we can increase the length of string.  We can save our energy to and can just look it swing in our office.  Increase the length will make this decorative item will make it swing for a longer period.
  • 26. • The baby will move their body during they sleep. So this cradle will swing because it follows principle of pendulum. • Swinging may make disturb the baby and make them wake up and cry • Based on the experiment we know that, when we release the ball, the shorter string will make a shorter time to complete one oscillation • We know that picture A have long string and near to the ground compare to picture B which is have shorter string. • The cradle A will swing slowly compare to cradle B that may swing from side to side more faster which can disturb your baby when sleep.