top of page
.png)
What conditions will make the bulb brighter? (Pure)
Answer: Option A
Evan Toh
5 days ago1 min read
What happens to coil P (with slip rings) and coil Q (with split ring commutator)? (Pure)
Answer: Option C
Evan Toh
5 days ago1 min read
What is the barometer reading when aeroplane is flying at 12 km above sea level? (Pure Physics)
Answer: Option C
Evan Toh
Aug 21 min read
What is the heat capacity of the beaker? (Pure Physics)
Answer: Option A Heat capacity (C) is the thermal energy transferred to increase the temperature of the substance by 1 oC or 1 K. Specific heat capacity (c) is the thermal energy transferred to increase the temperature of 1 kg of substance by 1 oC or 1 K. The relationship is C = mc i.e. the mass of the beaker is not given as the heat capacity already has taken into account the mass.
Evan Toh
Aug 21 min read
What is the pressure at X? (Liquid pressure, Pure Physics)
Answer: Option A View the explanation
Evan Toh
Jul 291 min read
Which has higher specific heat capacity and latent heat of fusion?
Answers: Option C View the explanation
Evan Toh
May 211 min read
Liquid pressure involving two manometers with different liquids P and Q (pure physics)
Answer: Option A View the explanation
Evan Toh
May 201 min read
Velocity-time graph of ball thrown up with air resistance - Part 2
Refer to the video below for the explanation. Related post: Velocity-time graph of ball released from rest with air resistance - Part 1...
Evan Toh
Sep 26, 20251 min read
Velocity-time graph of ball released from rest with air resistance -Part 1
Refer to the video below to understand how to sketch the graph. For O-Level, we just need to focus on the general shape. 2024PP Paper 2...
Evan Toh
Sep 26, 20251 min read
Find the density of liquid from a pressure-depth graph.
Liquid pressure P = pgh P is pressure in pascal (Pa) p is the density of the liquid (kg/m3) g is gravitational field strength (10 N/kg) h...
Evan Toh
Sep 8, 20251 min read
What is the numerical value of ratio of c/C？PP2020P1Q20
C is the heat capacity of a body. It is the amount of internal energy transferred to a body per unit change in temperature. (Or for 1...
Evan Toh
Sep 8, 20251 min read
Light - TIR - Find the refractive index of the liquid
Answer: Option D For total internal reflection TIR to occur, two conditions must be present: 1. light must be travelling from a optically...
Evan Toh
Jul 30, 20251 min read
Liquid Pressure - Determine the pressure of the enclosed air in the manometer (pure physics)
Answer: Option A Refer to the video explanation
Evan Toh
Jul 30, 20251 min read
Evan Toh
Dec 13, 20240 min read
Evan Toh
Dec 13, 20240 min read
Evan Toh
Dec 12, 20240 min read
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
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
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
Evan Toh
Nov 4, 20241 min read
bottom of page