SBPH 1303 Applied Physics (Fizik Gunaan) Assignment Jan Sem 2026 | OUM
| University | Open University Malaysia (OUM) |
| Subject | SBPH 1303 Applied Physics (Fizik Gunaan) |
Specific Instructions (Arahan Khusus)
- Answer in ENGLISH or
Jawab dalam BAHASA INGGERIS atau BAHASA MELAYU.
- Submit your assignment ONCE only in a SINGLE file.
Hantar tugasan SEKALI sahaja dalam SATU fail.
- Submit your assignment
Tugasan ini dihantar secara ONLINE.
- Submission date: 9 MARCH 2026
Tarikh penghantaran: 9 MAC 2026
- This assignment consists of TWO Parts, Part I (weightage:40%) and Part II (weightage: 10%).
Tugasan ini mengandungi DUA Bahagian, Bahagian I (pemberat:40%) dan Bahagian II (pemberat:10%)
- The assignment accounts for 50% of the total marks for the course.
Tugasan ini menyumbang sebanyak 50% dari jumlah markah kursus
- Please ensure that your assignment is entirely your original work to uphold academic integrity.
There will be consequences if this principle is not followed. You are required to complete this assignment without assistance from others, including generative AI tools (such as Chat GPT, Gemini, DeepSeek etc.)
Pastikan tugasan anda adalah sepenuhnya hasil kerja anda sendiri untuk menegakkan integriti akademik. Perlu diingatkan bahawa terdapat akibat sekiranya prinsip ini tidak dipatuhi. Anda dijangka menyelesaikan tugasan ini tanpa bantuan daripada orang lain, termasuk alatan AI generatif (seperti Chat GPT, Gemini, DeepSeek dsb.)
Assignment Question
Part I / Bahagian I
Instructions: Answer all questions in Part 1. Show your detailed workings clearly and systematically.
Arahan: Jawab semua soalan dalam Bahagian 1. Tunjukkan jalan kerja anda dengan terperinci dan jelas.
Question 1
| a) | A solid right circular cone has a mass of 2.5 × 105 g and a height of 2.5 × 103 mm while the base radius is one-third of the height. Determine the density of the material in kg/m3. | |
| (3 marks) | ||
| b) | Four vectors are shown below:
Calculate the magnitude and direction of the resultant vector. Use the method of vector resolution. Assume that the magnitudes of , , and are 200 units, 150 units, 100 units and 50 units, respectively. |
|
| (6 marks) | ||
| c) | A car is travelling between two points, A and B. It passes point A with a speed of 72 km/h, and continues at this constant speed for the first 45 s of its journey. The car then accelerates uniformly for the next 80 s until it reaches a maximum speed. It maintains this maximum speed for a further 15 s. Finally, during the last 10 s, the car decelerates uniformly to rest at point B. The total distance between A and B is 6 km.
(i) Sketch the speed–time graph for the motion of the car. (Computer-generated graphs will not be accepted.) (ii) From the graph, determine the maximum speed of the car. |
|
| (6 marks) | ||
Soalan 1
| a) | Sebuah kon bulat tepat pejal mempunyai jisim 2.5 × 105 g dan tinggi 2.5 × 103 mm manakala jejari tapaknya ialah satu pertiga daripada tingginya. Tentukan ketumpatan bahan tersebut dalam unit kg/m³. | |
| (3 markah) | ||
| b) | Empat vektor ditunjukkan di bawah:
Kira magnitud dan arah bagi vektor paduan. Guna kaedah penyeleraian vektor. Andaikan magnitud bagi , , dan adalah 200 unit, 150 unit, 100 unit dan 50 unit, masing- masing. |
|
| (6 markah) | ||
| c) | Sebuah kereta sedang bergerak antara dua titik, A dan B. Ia melepasi titik A dengan kelajuan 72 km/j, dan meneruskan pada kelajuan malar ini untuk 45 saat pertama perjalanannya. Kereta itu kemudian memecut secara seragam untuk 80 saat seterusnya sehingga mencapai kelajuan maksimum. Ia mengekalkan kelajuan maksimum ini selama 15 saat lagi. Akhir sekali, dalam 10 saat terakhir, kereta menyahpecut secara seragam untuk berehat di titik B. Jumlah jarak antara A dan B ialah 6 km.
(i) Lakarkan graf laju-masa bagi pergerakan kereta itu. (Graf yang dijana komputer tidak akan diterima.) (ii) Daripada graf, tentukan kelajuan maksimum kereta itu. |
|
| (6 markah) | ||
(Total marks/ Jumlah markah: 15)
Question 2
| a) | Two objects, one twice as massive as the other, are released from rest from the same height. A student claims that the heavier object will have the greater speed just before hitting the ground. Do you agree with him? Explain. | |||||||
| (4 marks) | ||||||||
| b) | An object of mass m1 = 10 kg rests on a smooth, frictionless horizontal table as shown below. It is attached to a light cable that goes over a pulley at the table’s edge. The other end of the cable is connected to another object of mass m2 = 15 kg that hangs freely. When the system is released from rest, determine the acceleration experienced by both masses. Calculate also the tension in the connecting cable.
|
|||||||
| (6 marks) | ||||||||
| c) | Amir, a Form 6 student in Alor Setar, has just learned about work, power, and fluid pressure in his physics class. Curious about real-life applications, he decides to estimate the power delivered by a small water pump used to irrigate his grandfather’s paddy field. From the pump’s manual and some measurements, Amir notes the following information:
The pump operates at a frequency of 90 strokes per minute. Based on this information, Amir estimates that the pump delivers a power of 10 W to the water. Do you agree with his estimate? Justify your answer. State clearly any assumptions you make in your analysis. |
|||||||
| (5 marks) | ||||||||
Soalan 2
| a) | Dua objek, satu dua kali lebih besar daripada yang lain, dilepaskan dari pegun dari ketinggian yang sama. Seorang pelajar mendakwa bahawa objek yang lebih berat akan mempunyai kelajuan yang lebih besar sejurus sebelum mencecah tanah. Adakah anda bersetuju dengannya? Terangkan. | |||||||
| (4 markah) | ||||||||
| b) | Sebuah objek berjisim m1 = 10 kg terletak di atas meja mendatar licin tanpa geseran seperti ditunjukkan di bawah. Ia disambungkan pada kabel ringan yang melepasi takal di tepi meja. Hujung kabel yang satu lagi disambungkan kepada objek lain berjisim m2 = 15 kg yang tergantung bebas. Apabila sistem dilepaskan daripada pegun, tentukan pecutan yang dialami oleh kedua-dua jisim. Kira juga tegangan dalam kabel penyambung.
|
|||||||
| (6 markah) | ||||||||
| c) | Amir, pelajar Tingkatan 6 di Alor Setar, baru belajar tentang kerja, kuasa, dan tekanan bendalir dalam kelas fiziknya. Ingin tahu tentang aplikasi kehidupan sebenar, dia memutuskan untuk menganggarkan kuasa yang dihantar oleh pam air kecil yang digunakan untuk mengairi sawah padi datuknya.Daripada manual pam dan beberapa ukuran, Amir mencatat maklumat berikut:
Pam beroperasi pada frekuensi 90 lejangan seminit. Berdasarkan maklumat ini, Amir menganggarkan bahawa pam menghantar kuasa 10 W ke air. Adakah anda bersetuju dengan anggarannya? Justifikasikan jawapan anda. Nyatakan dengan jelas sebarang andaian yang anda buat dalam analisis anda. |
|||||||
| (5 markah) | ||||||||
(Total marks/ Jumlah markah: 15)
Question 3
| a) | An air bubble with an initial volume of 6.0 cm³ is released at a depth of 45 m, where the temperature is 8°C. At the surface, the bubble expands to 34 cm³. What is the temperature of the water at the surface? |
|
| (5 marks) | ||
| b) | You take a 100 g piece of ice from the freezer, where its temperature is –3°C, and drop it into 0.5 kg of water at 30°C. After the system reaches thermal equilibrium, how much water and ice are present in the final mixture? | |
| (5 marks) | ||
Soalan 3
| a) | Gelembung udara dengan isipadu awal 6.0 cm³ dilepaskan pada kedalaman 45 m, di mana suhunya ialah 8°C. Di permukaan, gelembung mengembang hingga 34 cm³. Berapakah suhu air di permukaan? | |
| (5 markah) | ||
| b) | Anda mengambil sekeping 100 g ais dari peti sejuk, di mana suhunya ialah –3°C, dan menjatuhkannya ke dalam 0.5 kg air pada 30°C. Selepas sistem mencapai keseimbangan terma, berapa banyak air dan ais yang terdapat dalam campuran akhir? | |
| (5 markah) | ||
(Total marks/ Jumlah markah: 10)
Part II / Bahagian II
Instructions for Question 4:
- Join a discussion group in the forum and discuss the topic given below.
- There will be a platform for group discussions readily available for you in the forum in myInspire.
- You may select any group to work with.
- Follow the instructions for submitting proof of online class participation.
Arahan untuk Soalan 4:
- Sertai kumpulan perbincangan dalam forum dan bincangkan topic yang diberikan di bawah.
- Terdapat platform untuk perbincangan kumpulan yang tersedia untuk anda di dalam forum di myInspire.
- Anda boleh memilih mana-mana kumpulan untuk bekerjasama.
- Ikut arahan untuk menyerahkan bukti penyertaan kelas dalam talian.
Question 4
As a group, share and discuss the following topic with relevant examples:
The application of basic fluid concepts—such as pressure, buoyancy, viscosity, density, and Bernoulli’s principle—in our daily life.
(10 marks)
Soalan 4
Sebagai satu kumpulan kongsi dan bincangkan topik berikut dengan contoh relevan:
Aplikasi konsep asas bendalir—seperti tekanan, daya apungan, kelikatan, ketumpatan dan prinsip Bernoulli—dalam kehidupan seharian kita.
(10 markah)
INSTRUCTIONS ON HOW TO SUBMIT PROOF OF ONLINE CLASS PARTICIPATION (10%)
Do the following:
- Select the best FIVE (5) of your postings from the forum discussion set up by your tutor.
- Do screenshots of the postings and include them as images in your assignment.
- The screenshots should be in image file (either in JPG or PNG format). Refer to the sample of Screen Grab below
- The screenshots should contain: Name, Title of the discussion, Day, Date and Time.
- Marks for the forum will be given based on the following rubric
| QN | CLO | Criteria | Weightage | Excellent | Good | Fair | Poor | Unsatisfactory | Max marks |
| 4 | 3 | 2 | 1 | 0 | |||||
| 4 | 3 | Quality of Postings
Kualiti Posting
|
2.5 | All five comments are good, appropriate, relevant, meaningful, and respectful.
Postings reflect active participation within assignment timeline. Kelima-lima komen baik, sesuai, relevan, bermakna dan berhemah. Postings mencerminkan penyertaan aktif sepanjang tempoh tugasan. |
Four of the comments are good, appropriate, relevant, meaningful, and respectful.
Postings reflect participation within assignment timeline. Empat Postings mencerminkan penyertaan sepanjang tempoh tugasan. |
Two or three of the comments are somewhat good, appropriate, meaningful and respectful.
Postings show relatively short participation time. Dua atau tiga komen baik, sesuai, relevan,bermakna dan berhemah Postings menunjukkan penyertaan dalam jangakamasa yang singkat. |
One post submitted.
OR All posts done in one day. OR None of the comments are good and relevant. OR Comments are short responses that are not substantial nor meaningful. Minimum effort (e.g. “I agree with Tina”) Satu penghantaran ATAU Semua penghantaran dibuat dalam satu hari . ATAU Tiada komen yang baik dan relevan. ATAU Komen hanya respon yang ringkas dan tidak meluas dan tidak bermakna.Usaha minimum (Cth: “Saya bersetuju dengan Tina”) |
Postings done past assignment timeline.
OR No postings given as proof of participation in discussion Postings melepasi tempoh tugasan. ATAU Tiada Postings diberi sebagai bukti penyertaan dalam perbincangan |
10 |
| Total Marks | 10 |
ARAHAN PENGHANTARAN BUKTI PENYERTAAN KELAS DALAM TALIAN (10%):
- Pilih LIMA (5) posting anda yang terbaik daripada perbincangan forum yang ditetapkan dalam tugasan.
- Lakukan screen shot posting dan isikan dalam bentuk imej di dalam fail tugasan anda.
- Imej screen shot mesti dalam format imej (sama ada JPG atau PNG). Rujuk pada contoh screen shot di bawah.
- Screen shot mesti mengandungi nama, tajuk perbincangan, hari, tarikh dan masa.
- Markah forum akan diberikan berdasarkan rubrik berikut:
| QN | CLO | Criteria | Weightage | Excellent | Good | Fair | Poor | Unsatisfactory | Max marks |
| 4 | 3 | 2 | 1 | 0 | |||||
| 4 | 3 | Quality of Postings
Kualiti Posting
|
2.5 | All five comments are good, appropriate, relevant, meaningful, and respectful.
Postings reflect active participation within assignment timeline. Kelima-lima komen baik, sesuai, relevan, bermakna dan berhemah. Postings mencerminkan penyertaan aktif sepanjang tempoh tugasan. |
Four of the comments are good, appropriate, relevant, meaningful, and respectful.
Postings reflect participation within assignment timeline. Empat Postings mencerminkan penyertaan sepanjang tempoh tugasan. |
Two or three of the comments are somewhat good, appropriate, meaningful and respectful.
Postings show relatively short participation time. Dua atau tiga komen baik, sesuai, relevan,bermakna dan berhemah Postings menunjukkan penyertaan dalam jangakamasa yang singkat. |
One post submitted.
OR All posts done in one day. OR None of the comments are good and relevant. OR Comments are short responses that are not substantial nor meaningful. Minimum effort (e.g. “I agree with Tina”) Satu penghantaran ATAU Semua penghantaran dibuat dalam satu hari . ATAU Tiada komen yang baik dan relevan. ATAU Komen hanya respon yang ringkas dan tidak meluas dan tidak bermakna.Usaha minimum (Cth: “Saya bersetuju dengan Tina”) |
Postings done past assignment timeline.
OR No postings given as proof of participation in discussion Postings melepasi tempoh tugasan. ATAU Tiada Postings diberi sebagai bukti penyertaan dalam perbincangan |
10 |
| Total Marks | 10 |
OVERALL MARKS/ JUMLAH KESELURUHAN MARKAH: 50)
MUKA SURAT TAMAT / END OF PAGE
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