Concept First Physics Tuition Learning Centre - Chapter 18

Explain why electric lights in a building are connected in parallel rather than in series.

When the bulbs are connected in parallel, the current through each bulb will be higher and hence each bulb will glow more brightly.
Parallel arrangement also allows the bulbs to work independently. That is, when one bulb is fused or blown, the other bulbs can still work.

Resistor A and B are in parallel. Would the addition of an extra resistor parallel to A and B increase or decrease the current flowing through the battery? Explain your answer.

Adding a resistor in parallel decreases the effective resistance of a circuit.

Using I=V/R, the current through the battery will increases.

What our Physics Students and Parents say

“Concept First probably has the best Physics tutors in Singapore.”

— Adelle Wang, River Valley High School

CF probably has the best Physics tutors in Singapore. They are able to explain difficult concepts clearly, as they provide short cuts and teach much easier methods of comprehending theory. Tuition is usually seen as a tedious and tiring activity but I always feel like their lessons pass very quickly as it is well-paced, suited to his students needs, and interesting at the same time. My Physics grades have improved from an S during mid-years to a B during prelims under their tutorship.

“One thing I really appreciate about my tutors at CF is the fact that they cared for us all as individuals.”

— Liew Yee Kay, Anglican High School

I always had much difficulty with Physics and found it a cumbersome and boring subject. But after attending Concept First Physics tuition class, I slowly understood it and finally got an A1 at the end! One thing I really appreciate about my tutors at CF is the fact that they cared for us all as individuals. When I was unsure about other subjects like A. Math, my tutors would stay back after class with me to clear my doubts. And for that, I’m really thankful!

Concept First Physics Tuition Centre

5.0

Based on 245 reviews

review us on

Hninn

04:03 23 Jan 23

I am very grateful that I studied in Concept First, the notes given were detailed and it was helpful to me in my revision. I did not expect learning physics to be fun but my physics tutor( Mr Seah) made it possible ☺️ He makes lessons super fun and makes physics much easier to understand for me. He gives great feedback in my work and encourages me a lot and I have managed to jump a few grades! Their 2-page summary notes are awesome too! Overall, I would really recommend Concept First, definitely worth it ! 😊

Dhanya Kumar

04:35 13 Jan 23

My journey with Concept First is one that was very fulfilling. The in-depth lessons equipped with questions of varying difficulty levels has allowed my to go from a C6 to A2 for physics in O-levels. I found their 2 page summaries extremely useful as revision. There was endless practice which allowed me to retain my knowledge. I also appreciate Mr Kong’s teaching which allowed me to grasp key concepts quickly and effectively and was apply to apply these concepts along with answering techniques

Jaron Sze

14:45 04 Dec 22

Mr Ram has been a fantastic teacher with good knowledge about the syllabus and the marking system of Cambridge. He is able to provide advice based on his experience as a student and as a teacher to ensure that our learning experience is optimized. He is also a friendly and casual teacher which bonds well with students and makes the learning environment less tensed. He is also readily available to answer our doubts and questions throughout the day even if it is late at night. He frequently asks questions on our learning experience to try and improve his method of teaching to cater to our different styles of learning. Overall, Mr Ram has been an exceptional teacher which helped me to improve in physics and brings out the best in his students.

xuanie

11:43 22 Nov 22

Concept First tutors explain their concepts very clearly and provide ample exercises for the students to practise those new concepts. Having studied here for a year, they have greatly aided me in helping myself achieve a B in prelims (initially U grader) as well as spark my passion for Physics (i once hated this subject). Though some may argue, coming from a higher ranking school, CF provides notes which are more helpful than school notes (we can agree to disagree). Definitely worth the cost.

Leora WILLAMME

05:54 07 Nov 22

CF has helped me to understand the concepts better as they offer a lot of practices and gives concise notes to help me in my revision. Before I attended lessons, I struggled to understand some topics but now I am confident in my physics knowledge and can clarify my friends' doubts. The teachers are really kind and funny. They will make lessons fun and engaging. I had always looked forward to attending lesson. ❤

Kaleb Teo

07:36 16 Oct 22

Mr Kong has been nothing short of an excellent teacher whose dedication and commitment to his students cannot be understated. The materials that Concept First has provided is also detailed and helpful to examination revision. I would not hesitate to recommend Concept First to anyone and would like to commend the centre of a job well done.

Isaac Tang

03:08 10 Oct 22

concept first physics helped me to better understand physics overall and let me better grasp the concepts needed to understand the topic better. Together with the extremely useful notes, the 1 page summary guides and extensive help from Mr Kong i am able to revise adequately for my exams. Thank you!

adele

02:54 10 Oct 22

Concept First helps learning physics become an enjoyable process, with all the encouragement from teachers, as well as the initiatives and materials given out to students. i have developed a love for physics, and it’s all thanks to Concept First!

Wendy Koo

08:48 28 Jun 22

My son who is sitting for his O level this year, is weak and struggling in his Physics since sec 3. I had sourced around Singapore to look for a suitable tuition support for his Physics since last year. I am very glad that in June this year, I found Concept First who offers crash course for O level Physics. After his 2 lessons of crash course, I could see that he had regained his confidence for Physics. He is currently very enthusiastic and positive in his learning for this subject. I believe good understanding of the subject is very important especially for Physics as there are so many application questions. And by understanding, he will be able to tackle all kinds of questions in the tests and examination. Indeed I was so glad when I saw his radiant smile after the lessons as he had once again found interest in this subject. He had further requested to enroll for the other revision classes of which he is currently looking forward to.

frozen meu

05:36 15 Jan 22

Concept First teachers had helped me in understanding the physics concepts well. The detailed notes and questions provided are good. After attending the lessons, my grades improved from F9 to B3 in a span of 7 months. I find the lab lessons useful and I learnt how to do many experiments from the teacher. Without CF, I wouldn’t be able to achieve the grade in such a short time. Thank you so much Mr Kong and team.