Ekxperimen Fizik Spm Kertas 3

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    SECTION B (EXPERIMENT)

    BAHAGIAN B (EKSPERIM EN)

    FORM 4 / TINGKATAN 4

    CHAPTER 2: FORCES AND MOTION

    BAB 2 : DAYA DAN GERAKAN

    1. Effect of force (F=ma)

    Kesan daya (F=ma)

    m,a : Force constant

    Daya tetap

    Inference

    Inferens

    : Acceleration of trolley depends on its mass

    Pecutan troli bergantung pada jisim troli.

    Hypothesis

    Hipotesis

    : Mass increases, acceleration. decreases.

    Semakin bertambah jisim troli, semakin berkurang pecutan troli.

    Aim of experiment

    Tujuan eksperimen

    : To investigate the relationship between acceleration and mass

    Menyiasat hubungan antara pecutan dan jisim.

    Manipulated variable : mass / number of trolley

    Pembolehubah dimanipulasi : jisim / bilangan troli

    Responding variable : acceleration of a trolley

    Pembolehubah bergerakbalas : pecutan troli

    Constant variable : Force applied by an elastic cord,F

    Pembolehubah yang dimalarkan : Daya yang dikenakan oleh getah kenyal, F

    Arrangement of apparatus:

    Susunan Radas:

    Procedure :

    Prosedur :

    1. Switch on power supply and a ticker timer.

    Hidupkan bekalan kuasa dan jangkamasa detik.2. The trolley is pulled down the inclined runway with an elastic cord attached to the hind

    post of the trolley.Troli ditarik menuruni landasan condong dengan tali kenyal di sambungkan pada

    bahagian troli.

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    3. The elastic cord is stretched until the other end is with the front end of the trolley. The

    length is maintained as the trolley runs down the runway.

    Tali kenyal ditegangkan dan panjang tali kenyal di kekalkan semasa troli menuruni

    landasan.4. The ticker tape obtained is cut into strips of 10- ticks and the acceleration, produced

    by the one unit of force is calculated by using the formula, a=v-u/t

    Pita detik yang diperolehi dipotong dengan setiap jalur mempunyai 10 detik dan

    pecutan yang dihasilkan oleh satu unit daya dihitung menggunakan formula , a=v-u/t5. The experiment is repeated with 2,3,4 and 5 trolley (with a second trolley stack up on

    the first trolley)

    Eksperimen diulangi dengan bilangan troli 2,3,4 dan 5 ( troli kedua di lekatkan pada

    bahagian atas troli pertama)

    Tabulation of data:Penjadualan data:

    Mass of trolley

    Jisim troli

    Acceleration

    Pecutan1 trolley

    1 troli

    2 trolley

    2 troli

    3 trolley

    3troli

    4 trolley

    4troli

    5 trolley

    5 troli

    Analysis of data:

    Analisis data:

    Acceleration

    Pecutan

    MassJisim

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    2. Effect of force (F=ma)

    Kesan daya (F=ma)

    F, a : Mass constantJisim tetap

    Inference

    Inferens

    : Acceleration of trolley depends on its force

    Pecutan troli bergantung pada daya troli.

    Hypothesis

    Hipotesis

    : Force increases, acceleration. increases

    Semakin bertambah daya , semakin bertambah pecutan troli.

    Aim of experiment

    Tujuan eksperimen

    : To investigate the relationship between acceleration and force

    Menyiasat hubungan antara pecutan dan daya

    Manipulated variable : Force applied by an elastic cord, F

    Pembolehubah dimanipulasi : Daya yang dikenakan oleh getah kenyal, F

    Responding variable : Acceleration of a trolley

    Pembolehubah bergerakbalas : Pecutan troli

    Constant variable : mass / number of trolley

    Pembolehubah yang dimalarkan : jisim / bilangan troli

    Arrangement of apparatus:

    Susunan Radas:

    Procedure :

    Prosedur :

    1. Switch on power supply and a ticker timer.Hidupkan bekalan kuasa dan jangkamasa detik.

    2. The trolley is pulled down the inclined runway with an elastic cord attached to the hind

    post of the trolley.

    Troli ditarik menuruni landasan condong dengan tali kenyal di sambungkan pada

    bahagian troli.

    3. The elastic cord is stretched until the other end is with the front end of the trolley. Thelength is maintained as the trolley runs down the runway.

    Tali kenyal ditegangkan dan panjang tali kenyal di kekalkan semasa troli menuruni

    landasan.

    4. The ticker tape obtained is cut into strips of 10- ticks and the acceleration, produced

    by the one unit of force is calculated by using the formula, a=v-u/tPita detik yang diperolehi dipotong dengan setiap jalur mempunyai 10 detik dan

    pecutan yang dihasilkan oleh satu unit daya dihitung menggunakan formula , a=v-u/t

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    5. The experiment is repeated with 2,3,4 and 5 identical elastic cord.

    Eksperimen diulangi dengan bilangan troli 2,3,4 dan 5 getah kenyal yang sama.

    Tabulation of data:

    Penjadualan data:

    Force / Number of elastic cord

    Daya/Bilangan getah kenyal

    Acceleration

    Pecutan

    1 elastic cord

    1 getah kenyal

    1 elastic cord

    1 getah kenyal

    1 elastic cord1 getah kenyal

    1 elastic cord

    1 getah kenyal

    1 elastic cord

    1 getah kenyal

    Analysis of data:

    Analisis data:

    Acceleration

    Pecutan

    Force / Number of elastic cordDaya/ Bilangan getah kenyal

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    3. Velocity and height of a trolley

    Halaju dengan ketinggian troli

    v, h : angle of inclined runway,

    Sudut kecondongan landasan,

    Inference

    Inferens

    : Velocity depends on the height of a trolley

    Halaju troli bergantung kepada ketinggian troli

    Hypothesis

    Hipotesis

    : Height of trolley increases , velocity of trolley increases

    Semakin bertambah ketinggian troli, semakin bertambah halaju troli.

    Aim of experiment

    Tujuan eksperimen

    : To investigate the relationship between velocity and height of a trolley

    Menyiasat hubungan antara halaju dan ketinggian troli

    Manipulated variable : Height of a trolley,h

    Pembolehubah dimanipulasi : Ketinggian troli, h

    Responding variable : Velocity of a trolley

    Pembolehubah bergerakbalas : Halaju troli

    Constant variable :angle of inclined runway,

    Pembolehubah yang dimalarkan : Sudut kecondongan landasan,

    Arrangement of apparatus:

    Susunan Radas:

    Procedure :

    Prosedur :

    1. A ticker tape is attached to a trolley and passed through a ticker-timer connected to a

    power supply.

    Pita detik dilekatkan pada troli dan melalui jangka masa detik yang disambungkan

    kepada bekalan kuasa.

    2. The trolley is placed at a height,h=10.0cm from the table top. The height, h ismeasured by using a ruler and recorded.

    Troli diletakkan pada ketinggian, h =10.0 cm dari permukaan meja. Ketinggian,h di

    ukur dengan menggunakan pembaris meter.

    3. The power supply is turned on and the trolley is released to the run down the runway.

    Bekalan kuasa dihidupkan dan troli dilepaskan menuruni landasan.

    4. The velocity of the trolley at the bottom of the runway is calculated by using the

    formula

    Halaju troli pada bahagian bawah landasan dihitung dengan menggunakan formula

    v= Distance traveled,s , v = Jarak dilalui,sTime for 5 ticks Masa untuk 5 detik

    = s cm = 5cm

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    5. The experiment repeated with a height,h = 20.0cm, 30.0cm, 40.0cm and 50.0cm.

    Eksperimen diulangi dengan ketinggian h = 15.0cm, 20.0cm, 25.0cm and 30.0cm.

    Tabulation of data:

    Penjadualan data:

    Height of a trolley (cm)

    Ketinggian troli(cm)

    Velocity

    Halaju

    10.0

    20.0

    30.0

    40.0

    50.0

    Analysis of data:

    Analisis data:

    Velocity

    Halaju

    Height of a trolleyKetinggian troli

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    4. Velocity and distance of a spring compression

    Halaju dengan jarak mampatan spring

    v, x : Elasticity of a spring // spring constant// stiffness //diameter // thickness of a springKekenyalan spring // pemalar spring //kekerasan// diameter //ketebalan spring

    Inference

    Inferens

    : Velocity depends on a distance of a spring compression

    Halaju troli bergantung kepada jarak mampatan spring

    Hypothesis

    Hipotesis

    : Distance of a spring compression increases, the velocity of trolley increases.

    Semakin bertambah jarak mampatan spring , semakin bertambah halaju troli.

    Aim of experiment

    Tujuan eksperimen

    : To investigate the relationship between velocity and a distance of a spring compression

    Menyiasat hubungan antara halaju dan jarak mampatan spring

    Manipulated variable : Distance of a spring compression, x

    Pembolehubah dimanipulasi : Jarak mampatan spring, x

    Responding variable : Velocity of a trolley

    Pembolehubah bergerakbalas : Halaju troli

    Constant variable : Elasticity of a spring // spring constant// stiffness//

    diameter // thickness of a spring

    Pembolehubah yang dimalarkan : Kekenyalan spring // pemalar spring//kekerasan//

    diameter //ketebalan spring

    Arrangement of apparatus:

    Susunan Radas:

    Procedure :

    Prosedur :

    1. Switch on the power supply and ticker timer.

    Hidupkan bekalan kuasa dan jangka masa detik.

    2. Compress the spring by pushing the trolley at a distance,x=2.0cm measured by aruler.

    Mampatkan spring dengan menolak troli pada jarak, x =2.0cm diukur dengan

    menggunakan pembaris meter.

    3. Release the trolley and calculate the velocity of a trolley from a ticker tape by usingthe formul