We Tested Singaporeans on PHYSICS with a $205 Reward! | Juniors vs. Seniors
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- Опубліковано 17 лис 2022
- Do you remember your Physics formulas? Let us know your thoughts in the comments below! Stay tuned for our next episode of Juniors vs. Seniors!
Hosted By:
Jmiah ( / jmiah.tropic )
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Charis ( / _bearbearchan )
Gavin ( / chekbing )
Sharmaine ( / shar.cyl )
Zhi Yun ( / regardszy )
Barry ( / senjubarry )
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#tropicmonsters #streetinterview #physics - Комедії
Mechanical Engineering guy can just drop out alr 😂
I think maybe in wrong diploma
Electrical questions can get wrong but forces....? Hmmm.
@@johcx1994 actually the parallel and in series is pretty standard.
I did mechatronics and mechanical engineering student.
Secondary 2 students are learning the parallel and series arrangements. Sec 3 students learn resultant forces.
He already got his diploma bro hahahhaha
Wow! I wish was there to answer the questions.
As a Physics undergraduate, those are some basic level questions, but seeing people who has not much background in Physics answering those with their intuition, got me impressed 👍🏻
I’m an undergraduate pharmacy student, but I know all these. You learn all this in secondary school. I’m not a Singaporean though, I don’t know what their syllabus is like but it’s supposedly better than most other countries including mine.
@@imthecoolest50 Yes. I learnt these from secondary school too. I guess the question asked is reasonable for the public if Singaporeans have this syllabus too. I'm not Singaporean too though by the way
I'm a sophomore lol. Answered most of 'em correctly. Although my marks don't show that (they're improving though!) , I've exorbitant interest in physics, especially astrophysics
These are just the basics
@@leftenanalim most people do, but if you're not going into physics its pretty useless knowledge so you forget it instantly
@@fukinyouup Most people do? Wow that's good to know. Proud that Physics is getting more popular and high in priority for education these days.
Well done guys! Haha!
For those taking H2 physics, take note that centrifugal force is not in the syllabus, but centripetal force is. For those taking university physics, it depends on your frame of reference. As pointed out by the host, centrifugal is an apparent force and not a real force.
Was that taught in mechanical engineering in university? I don't remember that being taught in mechanics of machines but I took that module 8 years ago, so I may have forgotten.
@@chuanrenlow8506 My degree is physics. So I am not sure what mechanical engineers learn. Any mechanical engineers here care to comment?
@@mrtienphysics666 wow that's a very specialised degree. I took one physics module in the first semester 10 years ago but I don't recall if the distinction between centrifugal and centripetal force was taught.
yes centrifugal force is a force felt when you are in a non inertial frame of reference :)
spho has taught me
Yeah i studied this in class 9 u r talking about university lol🤣
Well done and keep fighting👍🏻💪🏻😊 Thanks TMTV and Jmiah for sharing the new street quiz Physics to let everyone's to learn what's about Physics🙏🏻😊
the first video I watch from your channel. Is there any geography quiz version? If not, I request to make it for the next video. Good content, keep it up, bro!
The uncle damn cute lah, “integrated resort” 😂😂
Nice episode.. learnt something new.. can include geography in next episode?
I would love if he separated into physical geog (rainforests and rivers) and human geog (human development and geog of food). Thats all I rmb from sec sch.
the contestants this time round like all quite funny ah hahaha
Voltage is defined as V=IR only in a resistive circuit.
It is V=Q/C in a capacitive circuit and V = di/dt*L in an inductive circuit.
I mean simple la... Even if we know the definition is not the truest, but asking people to solve integrals and all will be mind-boggling.
Okay genius, now tell me what is the Electric Field at Point P in your ego where charge = inflated
The capacitor and the inductor wont contribute to the voltage if the circuit is at balance/static since they will be fully loaded. You will only consider them in a case of voltage variations, like an AC source, but that makes things A LOT more complex, since you should be considering also the capacitance, inductance and resistance of every component including the wires and source at this level and some complex calculations that goes from integrals up to partial equations depending on how far you want to go.
You'r really doing great buddy.. Somehow you'r teaching people to remember some basic concepts.... Because of the last question,i started doing calculations😅
You’re dumb if you started calculating 😂. No offense but it’s stupid cuz it’s in the question
@@muhammadzeeshan303 its okay but its not being dumb if you want to calculate or wanna learn...
Jeremiah u shld ask school students den confirm give away all ur money 😂
this is more like a memory test than a physics test for older people
It's amazing that I am 29 and its been some years since I left university, I could still recall the stuff and answer all these questions 😂 To my high school and A-lvl physics teachers I never disappoint you lmao.
I have degree and master degree in Physics but I need time to answer these questions. Been so long forgot already 😂
Voltage is not part of the current. Voltage is what makes the current flow by establishing two points which have potential difference between them. You can have voltage, but not necessarily current. Imagine a wall socket. You can turn in out, but no current will flow because it is not connected to anything. Current will only flow if you connect a physical conductor between the 2 terminals.
🤓
@@WalrusJeffGT 🤢🤢🤢🤢🤮🤮🤧🤮🤮🤮🤮🤮
oh. wow , i just finished my o level, then I forget all of these already. btw, i am a pure physic student
Waiting for IT
Its so painful to watch this video as an engineering student 😭
So true
Very cool
I always thought mv^2/r towards the centre of the circle of the path of circular motion was centrifugal force for these few years, or perhaps I just mixed the two up after graduation.
Centrifugal force is +mv^2/r.
Centripetal force is -mv^2/r.
Well centrifugal force isn't real, it's something that just exists in non-intertial frame of references where we add a force to make Newton's Laws Valid in such frames
Pseudo force is applied to make Newton's second law work in Non inertial frame of reference. With respect to the revolving object, mv²/r is acting outwards. BUT it is only so because in the radial axis, the net force is zero. So therefore the force acting inwards is equal to the force acting outwards. Therefore, net force inwards is equal to mv²/r where v is the tangential speed of the body at that instant.
@@wenhanzhou5826 it depend on frame or reference the sign convention
@@raja2850 ......totally😅😅
Really really amazing content I like it friend
A lot funny but serious
It is my dream to be given a pop quiz on school subjects when I'm walking along the road and win money tell me where to sign up pls
where to find y'all sia :
Is that Jaze phua ?
Now we need the chemistry test🤣🤣
Yes, very much agreed.
It will be more difficult as more memorisation are required
@@SuccessforLifester You mean the periodic table or smth? Lets see how they decide to jpg the memory of ppl
@@johcx1994 Many things to remember for chemistry. Including the reactivity of the various metals, the observations to see what gases are products and what kind of salts are present. To me it is a more difficult subject than Physics.
@@SuccessforLifester definitely more difficult than physics unless you are good at memorizing
Nice content
I wish I was back in school... studying is so easy compared to the working world.
i sense some frictional force on your path. But MrNewton chose to calculate it.
@@GrannyPanny111 ooooo99oo9
Oo
Oo99
I thought the ball being twirled around will experience a centripetal force, towards the centre, provided by the string tension?
Centripetal force is the component of force acting on an object in curvilinear motion which is directed towards the axis of rotation or centre of curvature. Centrifugal force is a pseudo force in a circular motion which acts along the radius and is directed away from the centre of the circle. - google
he also said it was away from the center
The ball experiences a fictitious force as it is in a non-inertial reference frame, which is the centripetal force. The "real" force it experiences, from an inertial reference frame, is the centripetal force.
A non-rotational analogue would be feeling the lift "push you down" when it's accelerating upwards. You, in a non-inertial reference frame, experiences a fictitious force downwards. The actual force, lifting you up, is from the bottom surface of the lift, acting on your feet.
The guy with ear rings looks very much like the hk actor Timmy Hung
5:31 why would V=E/q be wrong? Is that not the definition formula for voltage? I'm guessing its because this formula is impractical to calculate voltage-its much easier to calculate voltage using a known resistance and current, but clarification would be nice.
@@apelumaupaku883 eh, q is the term referring to charge, and E refers to potential energy rgt?
@@divine6104 in electrostatics, E refers to electric field, while U refers to electrostatic potential energy
@@ryanchia5678 Then ΔV=ΔU/q. The symbols shouldn't matter at least in fhe context of the video- only the meaning does.
@@divine6104 oh i get what u mean now
emf = E/Q and emf has a slightly different meaning from voltage
V=E/q is not the definition of voltage, V=IR is
the reason for that is, as u said the voltage is much easier to calculate from V=IR
Parallel and series
The brightness question is quite difficult, actually the bulb that is the brightest is the one with the highest power consumption. P = V^2/R, and let's say each battery has voltage V and each bulb has resistance R, and we know that potential difference across each path is equal to V times the number of batteries, and the resistance of each path is R times the number of light bulbs. Then we need to use P = V^2/R for each option and find out the power consumption in each path, and then divide by the number of bulbs in that path to find power consumption of bulb T, as the bulbs are identical so the power will be shared equally. For the last circuit, T is connected in parallel with one other bulb so we can combine the two paths into one path with a total resistance of 1/(1/R + 1/R) = 1/(2/R) = R/2. So the power consumed by that combined path will be (2V)^2/(R/2) which is 8V^2/R. This power is shared equally among 2 bulbs so the power consumed by each bulb is 4V^2/R which is the highest among the 4 options. Therefore bulb T in option d) will be the brightest.
Don't need so much computation. Just need to know the voltage across each bulb. Higher voltage, brighter bulb. Voltage across T is directly proportional to number of batteries and inversely proportional to number of bulbs connected in series. So the relative brightness of T in the four options are 1
@@talkingkangaroo4934 I think bulb brightness should depend on power instead right? Cos light is energy, so higher wattage = brighter bulb
@@chuanrenlow8506 The lightbulbs are identical so R is constant. It's only the voltage that is variable.
@@talkingkangaroo4934 ah that's true
The questions are so easy....
i learnt more physics here compared to my school
Actually Newton’s third law can be applied in the last QN right?
for every action (force) in nature there is an equal and opposite reaction.
So no need for F=MA because of the constant speed. I feel like I recall my teacher teaching this shortcut in sec sch so we don’t need to do the calculation n everything to figure out the answer. Cause during O levels where got time sia we need to answer FAST FAST N GO NEXT QN HAHHAAH
But yeah the correct explanation is second law then add on with third law cause resultant force is 0. Man this brings back memories!
The forces act on different objects though,
If we use this formula "F - f = ma", where f is the resultant force.
Knowing that the acting force is 5N, and that the mass is 4kg. We can substitute F and m, which in this case would be,
5 - f = 4 * a
However, as the question states that "constant speed is 1.5m/s", this is the "tricky" part maybe. So long as there is constant speed, there will be ZERO acceleration. In this case,
5 - f = 4 * 0
Now just solving it mathematically,
5 - f = 0
f = 5N
Hence, your resultant force would be 5N. Frictional force will always oppose motion, in this case acting against the force applied to the block. That is also why there must be constant speed, which is the same as the question stating.
Do correct me if I'm wrong, it's been some time since I last touched Physics haha.
F=ma
NET FORCE= mass * acceleration. Here a=0
Therefore Net force equals to zero.
The third law doesn't do that. Third law only tells about the normal reaction. Block exerts force on floor. Floor exerts force on block.
WAH THE questions all easy. Suay I not at orchard to be questioned by him
IR = integrated resort! Hahaha ~
Side note:
Centrifugal Force is not real.
Only Centripetal Acceleration is real. 😊But anyway we call the resultant force as centrifugal force.
I actually thought it was Parallel and Series, not Short circuit?
uncle got jokes😂
HUH i thought brightness of bulb is proportional to current?
In a single lamp case it is.
I hope u interview me I'm gonna make u bankrupt with those questions 🤣🤣🤪🤪
Funny thing, I’m still in primary but I already know all the answers to all the questions- sadly I’m not in Singapore tho-
Yea of course, these questions are targeted at the younger audience so if you can't solve them then somethings wrong
@@takodachich.515 younger audience? This is taught to children in middle school. If you can't answer this after passing school, shame on you.
@@raja2850 many people go to their work force not needing any of this lol and after decades of course people will forget
@@mingjinlim430 western civilization is where you can survive by studying 'gender studies'. The disgust..
I thought the last question gonna ask about the coefficient of friction. To be honest, a high school student can answer all of the questions..
The light bulb brightness question should have been the advance question as it is the most difficult and required further analysis. I was tricked by it too but I know the answers of every other questions
Tbh if you remember resistance, parallel circuits have the lowest resistance (given if you were to set up similar number of bulbs/resistors). Parallel circuits give the lowest resistance (by mathematical formulae) and thus the resulting bulbs will be the brightest.
@@johcx1994 yes I didn't recall much at first as it was in an easy category. I wrongly used the current concept that it will get the most current while parallel circuits need to share the current
Nah, it was an easy question.
@@_graiderz2462 Almost no one get it right though. The final advance question is the easy one
Imo the most difficult tier should have been a heat capacity question.
Ofc given the formulas to apply since these arents students still studying the topic
Like 15kg of ice at -10°c melting to water and final temp is 20°c,find total energy required to melt the ice
"mechanical engineering" nice
Law of inertia - resistance of force when velocity suddenly stops
Law of Acceleration - the more you accelerate the more you gain mass thus you need more energy to accelerate more
Law of Interaction every force has an equal and opposite force of interaction
SHAG
Easy.
why am i not a millionare for all the questions i solve?
Honestly this are very easy set of questions. Like almost all my friends would have know the answers to all these.... And I/we are not even in the field of academia...
You want an award for that?
Stop the cap 🧢
This is* a very easy set of questions. You could get all the answers right, but couldn't write basic english sentences.
@@russellweefs Maybe he is more science and mathematics oriented. Technical people tend to be weaker in languages 😄
Honestly i could answer this back in school too but many years after graduation it's hard to remember anything
Test food science
So ez
Plzz come in india
All his money will be gone in a matter of seconds.
Change tshirt bro , helps with the freshness
The mechanical student thinking 1.5m/s is speed 😭😭😭😭😭
m/s is speed..
Formula for kinetic friction is also (meu)N. N=mg here. But meu which is coeff. of friction is not given.
非常简单的题目
Short circuit answer is wrong.. It is series circuit
no it is acceptable. In engineering we do talk about open and short circuits regularly
@@dingus42 pretty sure you are using it wrong..
Here is the definition:
A short circuit (sometimes abbreviated to short or s/c) is an electrical circuit that allows a current to travel along an unintended path.
A short circuit is only used for unintended path.The diagram show was an intended circuit therefore series circuit.
Can we do chem? Please. 🥺
could have been $205 for free
I thought Singaporian people are so intellectual bro this is high school qnss, tho they did good
M=f/a
Fnet=dp/dt
Ezpz pls choose me…
RIP mechanical engineering 😂
o level students be like
I wish Filipinos have vlogs like this
F=ma
Singaporeans typically do better in STEM related disciplines. Look at the other videos on language and humanities. No eyes to see 😂
eh i thought the friction force is 0 since theres no coefficient of drag, but his explanation also makes sense idk anymore
We know that it's moving at constant speed, which means its net force is definitely 0.
Since we're assuming that there's no air resistance, the only opposing force comes from friction, which has to be equal to the pull, so 5N in the opposite direction.
I was a physics major, trust me.
@@noobestofdamall could the acceleration hav been 1.5? Like the question said there was a block resting right…..so v1= 0. V2= 1.5 …..?…..I was confused ….since they didn’t give the value of coefficient of friction I figured the ans was 5…but still was confused….
@@riazmohamed6548 constant speed means acceleration is 0. Once the block is in dynamic equilibrium (as the question is framed) what happened between rest and accelerating to 1.5m/s speed is irrelevant
stop watching tiktok at class🤣🤣🤣🤣🤣🤣
太简单了尤其是最后一题，看着干着急，那个印度人还装模作样演算一遍
Alamak! The engineering guy,tak boleh lah! Belakang pusing..embarassing...
This just shows that whatever u learnt from school doesn't apply to work/job. So why the F we study all this during school sia. Waste time
It's to expose you to more things so you can choose your career. Several careers do require this.
It is a training on your ability to learn, solve, and persevere
you only consumer what you know..this stuff is for creators
The responses by all the participants are quite appalling... were these concepts really that forgettable or not that relevant in life? ☹
this video just proves that physics isnt easy and our parents have very high standrads
Bro what, u finding excuses to be lazy
LOL these are fking easy qns
Just because they cannot answer does not mean it is not easy lmao 🤣
Actually more of dealing with memory loss. Many information slowly disappeared with age. I did have bad physics teachers I would say. Never teach properly for both O and A levels
Why is the 21yr old guy dressed like a 40yr old abang lol
The last answer seems incorrect. If the frictional force is equal to the pulling force, then the brick shouldn't move at all. The fact that it is moving at a constant speed because of the pulling force suggests that the frictional force is less than the pulling force. And to get an accurate answer you would need to know the co-efficient of friction which depends upon the roughness of the surface.
frictional force is not equal to pulling force initially. as speed increases, frictional force increases until it is equal in magnitude to the pulling force, and acceleration of block would be equal to zero, thus it travels at constant speed
@@tigakmumu Yaa now it makes sense. thanks
Even the 'proper' explanations by the channel are bs
The host is just a layman so must be more forgiving. Some of his explanation not very correct
Accent make video uncomfortable to watch 🤣 .