Evan's Space
PHYSICS ILLUSTRATIONS and Revisions
Revision Posts by Topics
Measurements and Mechanics
Measurement
- Unit conversion involving prefixes
- Vernier caliper and Micrometer screw gauge
​​- Diameter of atom, hair and Earth - Orders of magnitude
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Kinematics
- Kinematics Basic Concepts Overall video tutorial
- Ticker Tape Timer Overview with questions
​- Unit conversion involving speed km/h to m/s vice versa
- Distance-time and Speed-time graph of 2 objects in motion - when does it overtake - video tutorial
- Understanding Free-Fall (acceleration due to gravity) with video tutorial
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Dynamics​​​
- Forces and Speed-time graph of parachute jump with video tutorial
- Video 01 How to find resultant force of two or three forces (without drawing vector diagram)
​- Video 02 Finding resultant force from vector diagram provided
- Video 03 Finding resultant velocity from vector diagram provided (boat/plane with wind)
- Finding Forces on Multiple Bodies
- Using Newton’s 3rd Law to find Forward Thrust on boat 201PP P1Q6
- Action-Reaction: Newton’s 3rd Law Summary
- Direction of Frictional Force on Tyre or Wheel 2007PPp1q5, 2004PPp1q5, 2020PPp1q6, 2021PPp1q7
- Understanding Newton’s 1st and 2nd Laws of Motion
- Vector Diagram – Parallelogram Method
- Different Types of Vector Diagrams
- Vector Diagram – Parallelogram Method for 4 different kinds of questions​​
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Mass Weight and Density
- Unit conversion involving density
- Density (Units Conversion) and Floatation
- Will it topple? How to explain?
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Moment​​
- Turning Effect of Forces – Basic Concepts
- Why wind surfer leans outward when the wind speed increases? – moments
- Minimum force to lift a drum over a step (different examples)
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Pressure
​- Liquid Pressure Summary Part 2 - Barometer and Manometer
- When to use the concept PV = constant and P1V1 = P2V2 to solve?
​- Understanding Hydraulic System Overview
- Sketching P-V, P-1/V and PV-P graph
- How to mark 2 points (at a distance apart) at the same level? (water finds its own level)
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Energy, Work and Power
- Understanding Conservation of Energy and applying in calculation questions
​- Force required to pull the block up the inclined plane
- Oscillating or Vibrating Object in a Wave Motion
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Revision Posts by Topics
Thermal Physics
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Thermal Processes
- P1 PP2022P1Q17 Why is the athlete wrapped with silver and white sheet after a run?
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Thermal Properties of Matter
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Revision Posts by Topics
Waves
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General Wave Properties
- Determine the motion of the particles on transverse wave
- Wavefronts - Calculations​
​- Finding focal length f of the lens using pin and mirror or sharp image from distance object
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Light
- Different Converging Lens Ray Diagram questions
​- What is Total Internal Reflection (TIR)?
- Total Internal Reflection (TIR) example 01
- Total Internal Reflection (TIR) example 02
- Different Lens Ray Diagram questions
- Different ways to form a sharp image on a screen through the lens​
- To bend or not to bend? Refraction​
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Sound
​- Graphs of Longitudinal Wave
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Revision Posts by Topics
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Electricity, Magnetism and Radioactivity
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Static Electricity
- Static Electricity basic concepts summary
- Static Electricity - applications
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Current Electricity
- Factors that affect the resistance of a conductor
- What is the resistance of Y when its length is doubled and diameter three times larger? 2018PPp1q31
​- Finding total effective resistance
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DC Circuit
- Finding total effective resistance
- Basic Concepts on DC Circuit – River System​
​- P2 2021SPp2q8 - Which appliance uses most energy (using P = V^2/R to explain)
​- Input Transducers - Light dependent resistor (LDR) and thermistor
- Potential Divider / Potentiometer
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Practical Electricity
- What if wires in the 3-pin plug are swapped?
​- Why the fuse and switch must be on the live wire?​
- Why do we need earth wire and fuse?​
- What will cause the fuse to melt
​- Thick Cables for High Power Electrical Appliances
- Cost of Electrical Energy Consumption
- Double-Insulated Appliance – Air purifier in the classroom​
​- What is the new P when V across resistor is doubled?
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Magnetism
Electromagnetism
- Turning Effect of Current-carrying Coil in a Magnetic Field
- Electromagnetism basic
- Electromagnetism – Reading on Electronic Balance with Magnet and Current-carry wire
- Two parallel current-carrying wires - What is the forces acting on each wire?
- Charged particle moving in a magnetic field
- Applying FLHR: different 2D views from a 3D diagrams
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Electromagnetic Induction
- Fleming's Left Hand and Right Hand Rule
- Understanding cathode-ray oscilloscope CRO
Radioactivity
- Questions on emissions through electric and magnetic field
- Questions on mass number and proton number of the nucleus after decay
- Questions on Penetrating Ability and Applications
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