top of page


What is the terminal velocity from the height-time graph of a falling object 2017PPp1q3 and 2020PPp1q5
Though the graph is a height-time graph, it is similar to a distance-time graph. Questions: 2017PPp1q3 and 2020PPp1q5 Answer: Option D
Evan Toh
Mar 191 min read
10 views
0 comments


2024PPp1q6 Ball falling with inital velocity greater than terminal velocity
Instead of the usual ball release from rest, this question states that the ball has an initial velocity greater than terminal velocity in...
Evan Toh
Mar 181 min read
13 views
0 comments


Video 03 - Finding resultant velocity on boat or plane with wind (updated)
Instead of the usual vector diagram involving forces, these questions involve speed in a specific direction, which is velocity. Velocity ...
Evan Toh
Mar 141 min read
10 views
0 comments


2023SPp1q3 What is the air resistance when the speed is doubled?
This question is challenging to students as there are many information given. But it is actually quite straight forward when you save one...
Evan Toh
Mar 91 min read
9 views
0 comments


Which scale diagram shows a resultant of 4 N? 2015PPp1q3
Answer: Option B Similar questions https://www.sgphysicstuition.com/post/video-01-how-to-find-resultant-force-of-two-or-three-forces-with...
Evan Toh
Feb 21 min read
25 views
0 comments


Orders of magnitude of sizes of atom, hair and Earth
In the syllabus, we are required to understand the orders of magntiude of various objects. Though we may no need to memorise the exact...
Evan Toh
Jan 101 min read
133 views
0 comments


Radioactivity - Questions on Penetrating Ability and Applications
2002PPQ38, 2003PPQ38, 2005PPQ37, 2006PPQ38, 2007PPQ39 Answer: Option B Answer: Option D Answer: Option B Answer: Option C Answer: Option...
Evan Toh
Nov 7, 20241 min read
61 views
0 comments


Radioactivity - Questions on mass number and proton number of the nucleus after decay
2005SPQ20, 2006PPQ40, 2005PPQ38, 2003PPQ39 Answer: Option A Answer: Option D Answer: Option B Answer: Option C Answer: Option B Answer:...
Evan Toh
Nov 7, 20241 min read
38 views
0 comments


Radioactivity - Questions on emissions through electric and magnetic field
Alpha particle is a helium nucleus which is positive charged . Beta particle is an electron which is negative charged . Gamma ray has...
Evan Toh
Nov 6, 20241 min read
40 views
0 comments


Evan Toh
Nov 6, 20240 min read
6 views
0 comments


Radioactivity - Questions on Half-life
Half-life of a radioactive nuclide is the time taken for half the nuclei of that nuclide in any sample to decay . (time taken for the...
Evan Toh
Nov 6, 20241 min read
108 views
0 comments


Copper spheres P and Q, P has larger volume. What quantity is the same? 2020PP01q7
This question is very straight forward. As both P and Q are copper, the density will be the same. But many are unsure of KE. Let look at...
Evan Toh
Nov 4, 20241 min read
7 views
0 comments


What happens to frequency and speed of water wave as it goes to shallow region? 2019PPp1q23
Once the wave is produced, the frequency remains constant. Hence speed V of the wave is directly proportional to the wavelength of the...
Evan Toh
Nov 4, 20241 min read
12 views
0 comments


Evan Toh
Nov 4, 20241 min read
6 views
0 comments


What is the resistance of Y when its length is doubled and diameter three times larger? 2018PPp1q31
When question states that radius or diameter is increased by 3 times, that note that cross-sectional area does not increase by 3 times....
Evan Toh
Nov 4, 20241 min read
5 views
0 comments


PP2022P1Q17 Why is the athlete wrapped with silver and white sheet after a run?
We have learned that silver smooth reflective surface is a poor absorber , poor emitter or a good reflector of infra-red radiation. How...
Evan Toh
Oct 30, 20241 min read
141 views
0 comments


2007PPp1q28 2019PPp1q33 - Which V-I readings are for torch lamp?
2019PPP1Q33 Ans: Option B 2007PPP1Q28 Ans: Option B Torch lamp or bulb is a non-ohmic conductor . The V-I graph has an increasing...
Evan Toh
Oct 25, 20241 min read
7 views
0 comments


Evan Toh
Oct 25, 20241 min read
9 views
0 comments

DC Question – Find unknown R, given the voltmeter readings when switch P and Q are closed respectively
Answer : Option A
Evan Toh
Oct 25, 20241 min read
8 views
0 comments


Distance of sound detector from walls
Answer: Option B
Evan Toh
Oct 24, 20241 min read
9 views
0 comments
bottom of page