Jawapan kertas 3 fizik akhir tahun 2014

Answer:

1 (a) (i) Distance of compression of the springJarak mampatan bagi spring

(ii) Speed of the trolleyLaju troli

(iii)

Mass of the trolleyJisim troli

(b) Distance of thespring compression, e/cmJarak mampatan spring, e/cm

Length of ticker tape, x/cmPanjang pita detik, x/cm

Speed, v/cm s−1

Laju, v/cm s−1

2.0 5.4 27.03.0 7.8 39.04.0 10.3 51.55.0 12.6 63.06.0 15.0 75.0

(c)

(d) Speed is directly proportional to the distance of compression of the springLaju adalah berkadar secara langsung dengan jarak mampatan spring

2 (a) (i) P increases.P bertambah.

(ii) θ = -273°C

(b)

m = 0.28 kPa °C−1

(c) (i) T = 223 K(ii) P = 62 kPa(iii) R = 8.30 kPa K−1

(d) Repeat the experiment to get the average values.Ulang eksperimen untuk mendapatkan nilai-nilai purata.

3 (a) The position of the image depends on the depth of waterKedudukan imej bergantung kepada kedalaman air

(b) The more the depth of the water is, the more the apparent depth of the image will beSemakin bertambah kedalaman air, semakin bertambah dalam ketara imej

(c) (i) Aim of experiment:Tujuan eksperimen:

To investigate the relationship between real depth and apparent depthMengkaji hubungan antara dalam nyata dan dalam ketara

(ii) Manipulated variable: The depth of the waterPemboleh ubah dimanipulasikan: Kedalaman air

Responding variable: The position of the imagePemboleh ubah bergerak balas: Kedudukan imej

Constant variable: The type of liquid and the type of beakerPemboleh ubah dimalarkan: Jenis cecair dan jenis bikar

(iii) List of apparatus and materials:Senarai radas dan bahan:

Tall beaker, water, pins, retort stand and metre ruleBikar tinggi, air, pin, kaki retort, dan pembaris meter

(iv) Arrangement of the apparatus:Susunan radas:

(v) Procedure:Prosedur:

1. A beaker is filled with water to a depth of 10 cm.Sebuah bikar diisikan dengan air pada kedalaman 10 cm.

2. The pointer is moved to obtain the apparent position of the pin in the beaker.Penunjuk digerakkan untuk mendapatkan dalam ketara pin dalam bikar.

3. The apparent position of the pin in the beaker from the surface of water, d, is measured.Dalam ketara pin dalam bikar dari permukaan air, d, diukur.

4. The experiment is repeated 4 times with the depth of water, D: 12 cm, 14 cm, 16 cm and 18 cm.Eksperimen diulangi 4 kali dengan kedalaman air, D: 12 cm, 14 cm, 16 cm, dan 18 cm.

(vi) Tabulate the data:Menjadualkan data:

Depth of water, D/cmKedalaman air, D/cm

Apparent depth, d/cmDalam ketara, d/cm

1012141618

(vii)

Analyse the data:Menganalisis data:

Plot a graph of apparent depth, d against the depth of the water, DPlot satu graf dalam ketara, d melawan kedalaman air, D

4 (a) Acceleration of the wheelbarrow depends on the massPecutan kereta sorong bergantung kepada jisim

(b) The acceleration increases as the mass decreasesPecutan bertambah apabila jisim berkurang

(c) (i) Aim of experiment:Tujuan eksperimen:

To investigate the relationship between the mass and the acceleration of the trolleyMenyiasat hubungan antara jisim dengan pecutan troli

(ii) Variables in the experiment:

Pemboleh ubah dalam eksperimen:

Manipulated: Mass of trolleyDimanipulasikan: Jisim troliResponding: Acceleration of trolleyBergerak balas: Pecutan troliConstant: Force appliedDimalarkan: Daya yang dikenakan

(iii) List of apparatus and materials:Senarai radas dan bahan:

Trolley, ticker tape, ticker timer, ruler, string/elastic chord, pulley, power supply, connecting wire, friction compensated inclined plane, slotted weight and wooden blocksTroli, pita detik, jangka masa detik, pembaris, tali kenyal, takal, bekalan kuasa, dawai penyambung, landasan terpampas geseran, jisim berslot, dan bongkah kayu

(iv) Arrangement of the apparatus:Susunan radas:

(v) Procedure:Prosedur:

1. A wooden block of 0.2 kg is added on the trolley.Sebuah bongkah kayu dengan jisim 0.2 kg ditambahkan pada troli.

2. The ticker timer is switched on and the trolley is pulled down the inclined plane by the weight.Jangka masa detik dihidupkan dan troli itu ditarik menuruni landasan oleh pemberat.

3. The ticker tape obtained is used to calculate the acceleration of the trolley.Pita detik yang diperoleh digunakan untuk menghitung pecutan troli.

4. The experiment is repeated by using wooden blocks of 0.4 kg, 0.6 kg, 0.8 kg and 1.0 kg.Eksperimen diulangi dengan menggunakan bongkah kayu yang berjisim 0.4 kg, 0.6 kg, 0.8 kg, dan 1.0 kg.

5. The data is recorded and tabulated.Data itu dicatatkan dan dijadualkan.

6. A graph of acceleration against mass is plotted.Satu graf pecutan melawan jisim diplotkan.

(vi) Tabulate the data:Menjadualkan data:

Mass, m/kgJisim, m/kg

Acceleration, a/m s−2

Pecutan, a/m s−2

0.20.40.60.81.0

(vii)

Analyse the data:Menganalisis data:

Plot a graph of acceleration against mass

Plot satu graf pecutan melawan jisim