中四物理 O 水准模拟考必出题型2024

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中四 O水准考试 是所有中学生要面临的一次重大考试。这考试会直接影响他们未来的学习路程，是否能上高中或是去理工学院,甚至于去工艺教育学院。在这9月份，他们会有一次彩排的机会，那就是中四学校的模拟考试。这也是一场重要的考试。因为这后冠病时代，学生有可能因为冠病不能去考试，而只能用模拟考的成绩来估算出成绩。因此，模拟考变得格外重要。
本人拥有18年的教学经验。以下是我押的重要必出的题型。

Questions types tested inSec 4 Pure Physics Prelim exam2024

Measurements

1. Physicalquantities, Units and Measurements

·       Knowing the 7 basequantities and theirrespective SI units

·       How to read VernierCallipers and micrometerscrew gauge

·       Appropriateinstrument for measuring quantity

·       Calculating periodof pendulum

·       Identify quantitiesas scalars or vectors

Newtonian Mechanics

2. Kinematics

·       Difference betweendisplacement and distance

·       Difference betweenspeed and velocity

·       Calculatingacceleration

·       Describing motionof object fromdisplacement-time graph and velocity-time graph

·       Transformdisplacement-time graph tovelocity-time graph to acceleration time graph

·       Calculatingvelocity from displacement-timegraph

·       Calculatingdisplacement and acceleration fromvelocity-time graph

·       Describing themotion and calculating speedbased on ticker tape timer

·       Using accelerationdue to free fall to calculatedisplacement and velocity

3. Dynamics I: Mass andWeight

·       Identify force thatacts across distance or incontact

·       Definition of massand weight

·       Difference betweenmass and weight

·       How to calculateweight from mass andgravitational field strength and vice versa

4. Dynamics II: Forces

·       Using Newton’s first law of motion to explainacceleration in space

·       Using Newton’s second law of motion to explainforce is equivalent toacceleration

·       Using Newton’s third law of motion to explainpropulsion

·       Using F=ma tocalculation resultant force andacceleration

·       Drawing forces infree body diagram

·       Resolving forces byusing vector diagram

·       Calculation thrust,air resistance, frictionfrom free body diagram

·       Methods to reducefriction

·       Explain terminalvelocity during free fall usingforces

·       Factors affectingterminal velocity

5. Turning Effects ofForces

·       Calculation ofmoment of force

·       Identify differenttypes of equilibrium: Stable,unstable and neutral

·       How stability isaffected by base area andposition of center of gravity

·       Determine thecenter of gravity of a lamina

·       Calculation offorce based on Principle ofmoments

6. Pressure

·       Definition of pressure

·       Calculation ofpressure in liquid column

·       Applying Pascal’s Law to calculate the area andforce of hydraulic press

·       Calculatingpressure of gas using u-shapedmanometer

·       Determine densityof liquid using u-shapedmanometer

7. Energy

·       Definition ofenergy, work done and power

·       Using Law ofConservation of energy to calculateenergy

·       Calculatinggravitational potential energy andkinetic energy

·       Calculating workdone, power

·       Work done used to calculatebraking distance

·       Calculating energyefficiency

·       Distinguishing therenewable and non-renewablesources of energy

Thermal Physics

8. Kinetic ParticlesModel of Matter

·       Describing thearrangement of particles,movement of particles and speed of particles in solid,liquid and gas

·       Drawing theparticles in solid, liquid and gas

·       Describing thechange in arrangement, movementand speed of particles during change of state(Freezing, melting, boiling,condensation)

·       Describing gain orloss of heat in differenceprocesses of change of state

·       Difference betweenevaporation and boiling

·       Factors affectingthe rate of evaporation

9. Thermal Processes

·       Defining thermalequilibrium

·       Explaining physicalphenomenon based on thefirst law of thermodynamics

·       Definition ofconduction, convection andradiation

·       Explaining physicalphenomenon using conduction,convection and radiation

·       Describing theformation of convection current

·       Describing thetypes of surface as emitters andabsorbers of heat

10. Thermal Properties ofMatter

·       How thermometermeasures temperature: based onlinear properties of materials such as volume,expansion, resistance

·       Definition ofspecific heat capacity andspecific latent heat

·       Calculating theamount of heat capacity in asubstance

·       Calculating energyused for change of state andrise in temperature

·       Explaining wherethere is no change intemperature during the change of state

Waves

11. General WaveProperties I: Introduction

·       Describing wave:frequency, wavelength,amplitude, period

·       Using wave equationto calculate wave speed,frequency, wavelength

·       Identify thedifferent types of waves:longitudinal and transverse

·       Describing wave asa propagation of energywithout transfer of medium

·       Drawing the nextwave form

12. General WaveProperties II: Sound

·       Require medium topropagate

·       Describe experimentof ringing alarm in glassjar as air is pumped out

·       Calculatingdistance based on echo

·       Range of frequencyof human hearing

·       Relating quality ofsound: Amplitude toloudness, frequency to pitch

·       Practical use ofsound: Echolocation, radar,sonar

13. Electromagnetic Waves

·       Properties ofelectromagnetic waves

·       Trends ofelectromagnetic waves: Frequency,wavelength and energy

·       Order ofelectromagnetic spectrum

·       Uses of thedifferent parts of theelectromagnetic spectrum

14.  Light

·       Describe laws ofreflection

·       Explain propertiesof light

·       Properties ofmirror images

·       Describe laws ofrefraction

·       Calculate angle ofincidence, angle ofrefraction and refractive index using Snell’sLaw

·       Describing totalinternal reflection

·       Explainingphenomenon using refraction and totalinternal reflection

·       Calculating focallength of converging lens

·       Drawing raydiagrams

·       Properties of imageof converging lens and uses

Electricity and Magnetism

15. Static Electricity

·       Definition ofElectric field

·       Drawing of electricfield

·       How to chargeobject by rubbing and induction

·       Explain howelectrons move to induce charge inobjects

·       Explaining howobjects become charged inphysical phenomenon

·       How to use goldleaf electroscope

16. Current ofElectricity

·       Definition ofcurrent, potential difference andresistance

·       Difference betweenconventional current andelectron flow

·       Calculatingcurrent, voltage and resistance

·       Difference betweenelectromotive force (EMF) andpotential difference (PD)

·       Drawing circuitdiagrams

·       Explaining how ammeter,voltmeter and resistorswork

·       Using Ohm’s law to distinguish between ohmic andnon-ohmic material

·       How resistancechanges with temperature

·       Calculating powerand energy used

17. D.C. Circuits

·       How to calculatecurrent, potential differenceand resistance in series and parallel circuit

·       How to calculateoutput voltage from a potentialdivider

·       How light dependentresistors (LDR) andthermistor works in a potential divider

·       Uses of potentialdivider: relay switch, volumecontrol, fan speed control

18. Practical Electricity

·       Identify differentkinds of hazards:overloading, frayed wires, wet condition, short circuit

·       Calculatingelectricity consumption using KWh

·       Explain how safetyfeatures work: Fuse, Switch,circuit breaker, insulation

19. Magnetism

·       Definition ofmagnetic field

·       Drawing of magneticfield

·       Explain how toinduce magnetism

·       How to inducemagnetism and reduce magnetism

·       Difference betweenhard magnetic and softmagnetic material

·       Explain uses ofmagnets in real life setting

20. Electromagnetism

·       Describe themagnetic effects of electricity

·       Describe howmagnetic field is produce whencurrent flows through and how wires with paralleland anti-parallel currentsbehave

·       Determine polarityof magnetic field using righthand grip rule

·       Drawing magneticfield of a wire and a solenoid

·       Describe motoreffect

·       Using Fleming’s Left hand rule to determine thedirection of force andcurrent flow

·       Explain thefunction of the parts of a motor

21. ElectromagneticInduction

·       Explaining thepolarity of magnetism induced bycurrent using Lenz’sLaw

·       Describe themagnitude of the EMF induced isproportional to the amount of magnetic fluxbased on Faraday’s Law

·       Identify step upand step down transformer

·       Calculate thecurrent, emf and power in theprimary and secondary coil of transformer

·       How to readCRO(Cathode Ray-tube Oscilloscope)reading

Radioactivity

22. Radioactivity

·       Identify thefundamental particles in an atom

·       Definition ofradioactivity

·       Difference betweennuclear fission and nuclearfusion

·       Writing equation ofradioactive decay: alpha,beta and gamma

·       Calculating massleft and half life

·       Uses and hazards ofnuclear power

后面会包括一些例题


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