New Topics for H2/H3 Physics (NTP)
NIE-CPDD Workshop
12 Jan (full day), 26 Jan (PM)
Join us for the New Topics for H2/H3 Physics (NTP) workshop in 2024 to:
get an inside scoop on exciting content areas for A-level physics
strategize how to facilitate student learning in these areas, while appropriately integrating inquiry, hands-on, 21CC development, e-pedagogy
collaborate and network with physics educators to share and sharpen ideas to effectively and efficiently prepare to teach the revised syllabus
What to expect? | What does it cover? |
This workshop is conducted by a team of professors from NIE Natural Sciences and Science Education (NSSE) Academic Group, with support from MOE CPDD. This is a full day face-to-face workshop session at NIE on Friday, 12 Jan 2024 (9am to 5pm). Prior to the in-person workshop date, you should spend approximately 2 hours (flipped learning). Two weeks after the workshop, we will have an online synchronous afternoon session on Friday, 26 Jan 2024 for group presentations and sharing.
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The topics covered in this workshop include Electromagnetism (including capacitors), Quantum Physics and Special Relativity. We will also briefly outline the content changes, discuss curricular shifts, as well as offer assessment updates in the revised A-Level Physics syllabus that will be implemented for JC1s in 2025.
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How can one sign up? | |
Register for the NTP workshop by Friday, 17 Nov 2023 through this link below (OPAL log-in is required): https://www.opal2.moe.edu.sg/app/learner/detail/course/930deb34-99ad-45a5-80bb-c5d296f1bb33 [MOE will cover the cost for MOE staff; direct staff of independent schools will each be charged an estimated $X00 for the workshop.] Please alert your RO on registration to seek approval, for a smoother registration experience. | |
Dear participants,
Hope you’re looking forward to a restful break this year-end! Thank you for signing-up for the 2024 workshop on New Topics for H2/H3 Physics (NTP). Do look through this email carefully now to ensure you have a pleasant experience with the workshop next year!
The workshop experience [total duration: 12 hours] is structured as follows:[2 hours] Pre-workshop preparation (asynchronous self-study, materials will be in the Google Classroom and you can access them as soon as you join)
[7 hours] Fulll-day in-person workshop on 12 Jan 2024 (Friday) from 9am to 5pm at the National Institute of Education, the lab is at NIE 7-B2-01
[3 hours] Group presentations (synchronous online mode) via Zoom meeting on 26 Jan 2024 (Friday), from 2pm to 5pm
Some important instructions:
- [Survey] Complete the pre-workshop survey as soon as possible, link is https://go.gov.sg/prentp
- Within the survey, we will ask for a personal email address that you will need to access our Google Classroom. You should join the Google Classroom directly using https://go.gov.sg/ntp2024. We seek your understanding that MOE ICON and school accounts unfortunately do not work with Google Classroom.[Self-study] When you have gained access to the Google Classroom, work through the pre-workshop material on Special Relativity prior to 12 Jan 2024 – this is the asynchronous self-study portion of the workshop. The other materials on A-level Physics content changes and on Quantum Physics have also been provided for reference.
- [Equipment] Be sure to bring along a laptop (with charger) or equivalent computing device for the workshop. You will need this for some “hands-on” using spreadsheet software and to access course materials that will be added to the Google Classroom, and to complete feedback forms and so on. To gain guest access to the WiFi network at NIE, you should be able to self-signup through a web browser by providing a mobile number with which to receive a one-time PIN (OTP).
- [What else to expect for the in-person workshop] Sit in groups of three when you arrive, ideally with colleagues from other schools so you can grow your network. One hour will be given for lunch. Please note that morning and afternoon tea refreshments are provided, but lunch is not provided. Water coolers are available on-site. The nearest carpark is the one for NIE Block 7. Please see https://nie.edu.sg/about-us/visit-us for details about parking charges and directions for other modes of transport.
- [OPAL] Please bear with us if OPAL sends out automated messages that are confusing to you, and do not get unduly alarmed. Check in with us if you receive any such messages that don’t seem right to you.
Please do not hesitate to get in touch if you have any questions. See you on 12 Jan 2024 (Friday) at the National Institute of Education NIE 7-B2-01. The workshop will begin promptly at 9am and end by 5pm.
Resources
- View shared materials on Google Drive, materials will be uploaded as they are made available by the groups (link is https://drive.google.com/drive/folders/1S0fKQOxQEMYU4DaRLr-eYb85MsPGhfrG)
- Padlet link to leave your comments, questions, suggestions and appreciation for each group (link is https://padlet.com/sciencesamurai/ntp-jan-2024-group-presentations-396s7z22h71ls52n)
Q1`: Where is the energy stored in a capacitor?
A1: In a capacitor, energy is stored in the electric field between its plates. A capacitor consists of two conductive plates separated by an insulating material known as the dielectric. When a voltage is applied across the plates, an electric field is established between them.
Here's a step-by-step explanation of how energy is stored in a capacitor:
1. **Charging the Capacitor:**
- When a voltage is applied to the capacitor, electrons are forced onto one plate (the negatively charged plate), and an equal number of electrons are drawn away from the other plate (the positively charged plate).
- As a result, one plate becomes negatively charged, and the other becomes positively charged, creating an electric field between them.
2. **Energy Storage in Electric Field:**
- The energy stored in the capacitor is in the form of an electric field. The electric field stores potential energy because work is done to move the electrons against the potential difference between the plates.
- The energy stored \( U \) in a capacitor with capacitance $ \( C \)$ and voltage $ \( V \) $ is given by the formula $ \( U = \frac{1}{2}CV^2 \) $.
3. **Dielectric Material:**
- The dielectric material between the plates plays a crucial role. It prevents the flow of electrons between the plates and enhances the capacitor's ability to store charge and energy.
- The electric field interacts with the atoms or molecules in the dielectric, causing polarization. This polarization increases the effective capacitance of the capacitor and, consequently, its energy storage capacity.
4. **Discharging the Capacitor:**
- When the capacitor is discharged (e.g., by connecting its two plates with a conductor), the stored energy is released as the electric field collapses.
- The energy can be released in the form of electrical work or used to power a circuit.
The energy stored in a capacitor is transient and dependent on the voltage across its terminals. Higher voltage or larger capacitance values result in greater energy storage. Understanding how capacitors store and release energy is fundamental in various electronic circuits, where capacitors are used for energy storage, signal coupling, timing, and filtering applications.
Q2: If a charged capacitor is somewhat like a battery. Why do we not say the e.m.f. of a capacitor but the p.d. of a capacitor? But we talk abt e.m.f. of a battery.
A2: The terminology used for capacitors and batteries is based on historical and conceptual reasons.
For a battery, the term "electromotive force" (EMF) is used to describe the maximum electric potential difference that the battery can provide. The EMF is associated with the internal chemical processes occurring within the battery that generate a potential difference. It represents the work done per unit charge by the chemical reactions in the battery.
On the other hand, for a capacitor, the term "potential difference" (PD) is more commonly used. This is because a capacitor stores electrical energy in an electric field between its plates when it's charged. The potential difference across the capacitor represents the energy stored per unit charge.
The key difference is that in a battery, the EMF is associated with the chemical processes that generate the potential difference, while in a capacitor, the potential difference is associated with the stored electrical energy in the electric field between the capacitor plates.
In summary, the choice of terminology reflects the different mechanisms of energy storage and generation in batteries and capacitors. The use of "EMF" for batteries and "potential difference" for capacitors is a convention that has evolved in the field of electrical engineering.
Q3:particle in a box
Q4:
A4: https://vle.learning.moe.edu.sg/search?keyword=physics+exam&location=COMMUNITY&resource=LESSON&subject=&level=20 physics exam papers shared by several JCs
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