Rencana Pelajaran | Metodologi Aktif | Work: Weight

Prinsip: Rencana Pelajaran Aktif ini mengasumsikan: durasi kelas 100 menit, studi sebelumnya oleh siswa baik dengan Buku maupun awal pengembangan Proyek dan bahwa hanya satu kegiatan (di antara tiga yang disarankan) akan dipilih untuk dilaksanakan selama kelas, karena setiap kegiatan dirancang untuk mengambil sebagian besar waktu yang tersedia.

Tujuan

Durasi: (5 - 10 minutes)

The objective-setting stage aims to clearly define what learners should be capable of by the end of the lesson, focusing on the key skills needed to comprehend and apply the idea of work done by the weight force. This approach steers both teaching and learning, ensuring that all efforts are tailored toward specific and measurable outcomes.

Tujuan Utama:

1. Equip learners with the skills to calculate the work done by the weight force using the formula τ = mgh, where 'm' refers to the mass of the object, 'g' is the acceleration due to gravity, and 'h' indicates the change in height.

2. Develop their ability to apply physical concepts in practical settings through examples and exercises that involve calculating work in both real and hypothetical scenarios.

Tujuan Tambahan:

1. Encourage critical thinking and problem-solving through the examination of complex scenarios involving the calculation of work done by the weight force.

Pengantar

Durasi: (15 - 20 minutes)

This introduction is designed to captivate learners with scenarios that highlight practical applications of the concept of work done by the weight force, drawing from real-world and everyday contexts. Additionally, this contextualization aims to link the topic with real life, enhancing students' interest and the significance of their learning, illustrating that what they study directly impacts their daily lives and future careers.

Situasi Berbasis Masalah

1. Picture an elevator lifting a 500 kg load from the ground floor to the 10th floor, a height of 45 meters. Knowing that the acceleration due to gravity is about 9.8 m/s², how would we figure out the work done by the weight force during this operation?

2. Think of a climber carrying a backpack that weighs 15 kg, ascending a mountain that towers 2,000 meters. With a gravitational acceleration of roughly 9.8 m/s², what total work is done against the weight force to reach the summit?

Kontekstualisasi

Understanding the concept of work done by the weight force is vital, not just in physics, but across various real-life applications—from transporting goods and construction to sports activities. Knowing how to calculate and appreciate the influence of weight force is essential for engineers, architects, and even outdoor sports enthusiasts. Furthermore, interesting tidbits like how work done by the weight force relies solely on the change in height, regardless of the path taken, lend an engaging aspect to the subject.

Pengembangan

Durasi: (65 - 75 minutes)

This developmental stage encourages learners to actively apply the concept of work done by the weight force in practical contexts, implementing a flipped classroom methodology. By collaborating in groups to address complex problems in scenarios that imitate real-life challenges, students enhance their calculation skills, critical thinking, and communication abilities. This approach not only reinforces theoretical understanding but also promotes teamwork and problem-solving, getting students ready for real-world situations and future careers where physics is pertinent.

Saran Kegiatan

Disarankan hanya satu dari kegiatan yang disarankan yang dilaksanakan

Kegiatan 1 - Gravitational Mission: The Rescue of Astronauts

> Durasi: (60 - 70 minutes)

- Tujuan: Utilise the concept of work done by the weight force in a realistic and complex scenario, enhancing calculation and presentation abilities.

- Deskripsi: Students are tasked with a simulated mission to rescue astronauts from a failing space station in low Earth orbit. Each group receives important data like the astronauts' mass, the height of the orbit, and gravitational acceleration, and must determine the work required to bring them back to Earth, taking into account atmospheric resistance and variations in height.

- Instruksi:

• Divide the class into groups of up to 5 learners.

• Distribute the mission data to each group.

• Guide them in calculating the work done by the weight force in returning the astronauts, considering variations in height during re-entry.

• Encourage each group to prepare a presentation discussing their calculations and outcomes.

• Engage in a class discussion on the various methods and results from each group.

Kegiatan 2 - Engineers' Challenge: Efficient Elevators

> Durasi: (60 - 70 minutes)

- Tujuan: Foster skills in the application of physical concepts in engineering and architecture, while encouraging teamwork and resolution of intricate problems.

- Deskripsi: In this challenge, students are invited to create an elevator system for a 100-storey building, focusing on energy efficiency and safety. They must calculate the work done by the weight force while operating the elevators under various load conditions and travel distances.

- Instruksi:

• Form groups of up to 5 learners.

• Present the challenge of designing a safe and efficient elevator system.

• Provide pertinent data such as local gravity, average mass of people, and the building's height.

• Guide students in calculating the work done by the weight force in different elevator scenarios.

• Have each group present their projects and the calculations they carried out.

Kegiatan 3 - Physics Olympics: Pole Vault

> Durasi: (60 - 70 minutes)

- Tujuan: Employ the concept of work done by the weight force to comprehend and evaluate sports performance, showcasing the practical use of physics in a sporting environment.

- Deskripsi: Learners will take part in a simulated pole vault competition where they will calculate the work done by the weight force for various athletes, considering their masses, heights, and jumping techniques. The aim is to assess which athlete exerts the most work during a specific jump and discuss the practical ramifications of these calculations on athletic performance.

- Instruksi:

• Split the class into groups of up to 5 learners.

• Explain the rules and assessment criteria for the pole vault competition.

• Distribute fictional data on athletes, which includes their masses, heights, and jumping performance.

• Assist learners in calculating the work done by the weight force for each athlete and comparing the findings.

• Execute the competition and have a final discussion regarding the calculations and each athlete's performance.

Umpan Balik

Durasi: (15 - 20 minutes)

The goal of this stage is to cement learning by enabling learners to express and contemplate their acquired knowledge during hands-on activities. The group discussion is crucial in clarifying any uncertainties, exchanging various approaches, and reinforcing the understanding of the work done by the weight force. Moreover, this stage nurtures communication and critical thinking skills, which are vital for applying scientific knowledge in different settings.

Diskusi Kelompok

After completing the practical activities, arrange for a large group discussion with all learners. Begin with a brief introduction emphasising the value of sharing insights and strategies between groups. Use guiding questions like 'What were the major hurdles faced when calculating the work done by the weight force during the activities?' or 'In what ways can you apply what you learned about work done by the weight force in everyday scenarios?'. Prompt each group to briefly share their insights and conclusions.

Pertanyaan Kunci

1. What are the primary differences between calculating work done by the weight force in theoretical examples compared to practical scenarios like those we explored?

2. How does the change in height affect the work done by the weight force within the different contexts we studied?

3. Was there any surprising or unexpected finding during the calculations or simulations? How has this reshaped your understanding of the concept?

Kesimpulan

Durasi: (5 - 10 minutes)

The purpose of the Conclusion stage is to ensure students have a clear and consolidated understanding of the material covered, while grasping the applicability of the concepts in real contexts. This review solidifies learning and prepares students to translate these skills into future scenarios, while the discussion on the connection between theory and practice aims to deepen understanding and engagement with the subject matter.

Ringkasan

In concluding, the teacher should recap the key points discussed related to Work Done by the Weight Force, highlighting the formula τ = mgh and its applications in calculating work across diverse scenarios. It's essential to reflect on the practical examples used during the lesson, like the astronaut rescue and elevator design, ensuring learners have a solid understanding of the subject.

Koneksi Teori

Clarify how today's session melded theory with practical application, underscoring how the calculations and simulations performed mirror real-life situations. Showcase how applying the concept of work done by the weight force in practical tasks, such as rescuing astronauts and crafting elevator systems, illustrates the relevance of physics in real-world scenarios and in the learners' future paths.

Penutupan

Lastly, stress the importance of studying Work Done by the Weight Force, explaining how this topic is crucial in fields ranging from engineering and architecture to sports and everyday life. Emphasise how grasping these physical principles will empower learners to tackle complex issues and innovate in their future careers.