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Tutor for Bukit Timah | JC H2 Physics: Wave Motion, Intensity & Polarisation 9478

Three learners review open books together at a classroom table, with stacks of textbooks, stationery and a whiteboard in the bright room.

Looking for JC H2 Physics wave-motion tuition in Bukit Timah covering transverse and longitudinal waves, wave-speed graphs, intensity, polarisation or Malus’ law? Students often know v=fλ but count wavelength from a time-axis graph, mistake amplitude for intensity, confuse direction of energy transfer with displacement of particles, or use cosθ instead of cos²θ when a polariser is rotated. A useful tutor starts by identifying the actual measured quantity and its physical meaning before using an equation.

In the 2027 Singapore–Cambridge A-Level H2 Physics syllabus 9478, Wave Motion is Topic 10. Its outcomes distinguish mechanical from electromagnetic waves, displacement and phase, graphs of transverse and longitudinal disturbances against time or position, energy propagation without net matter transport, intensity proportional to amplitude squared, inverse-square intensity from a point source, polarisation of transverse waves, and Malus’ law. The separate Topic 11 Superposition guide covers standing waves, interference and diffraction. Doppler-effect calculations are not a named requirement of this 2027 Topic 10.

eduKate Singapore’s established Bukit Timah model uses up to three pupils per tutorial, usually 90 minutes weekly, at 8 Fourth Avenue, Singapore 268674 near Sixth Avenue MRT. This guide explains suitable H2 learning support; it does not confirm an available subject specialist, demonstration equipment, timetable or fee. Families should check the actual class before enrolling.

Physics textbooks and notes used by a small tutorial group
Wave-motion questions reward correct time and position axes, energy arguments and squared intensity ratios.

The official 2027 H2 Physics wave-motion scope

The syllabus includes definitions and quantitative use of amplitude, displacement, frequency, wavelength, period, phase, phase difference and speed. It explicitly requires interpretation of time and position graphs, an explanation of energy transfer without net matter transfer, intensity relationships, an inverse-square point-source model and polarisation through Malus’ law.

The authoritative source is SEAB’s H2 Physics 9478 syllabus for 2027, Topic 10, and the current examination directory is SEAB’s 2027 A-Level subject listing. Revision should follow the named outcomes rather than a generic international waves chapter.

A tutor can diagnose the reader’s starting point with a space graph, a time graph and a polariser question. The first wrong decision reveals whether the issue is graph literacy, wave properties or ratio calculations.

Mechanical waves require a material medium

Mechanical waves involve oscillations of particles or elements in a material medium, such as a stretched string, liquid surface or air. Their speed depends on the medium’s relevant elastic and inertial properties. A mechanical wave cannot propagate as that type of medium disturbance through a perfect vacuum.

A sound wave in air involves pressure and particle displacements; a string wave involves the displacement of string elements. The particles usually oscillate about equilibrium positions while the disturbance travels.

Ask students what would happen to an ordinary sound wave if all air were removed from a region, and whether the same answer applies to an electromagnetic wave. The distinction should be explained physically.

Electromagnetic waves are different

Electromagnetic waves involve oscillating electric and magnetic fields in space and time. They do not require an ordinary mechanical material medium and can propagate through vacuum. The oscillating fields carry energy and momentum, although their mathematical field representation differs from a vibrating string’s material displacement.

Visible light is an electromagnetic wave, while ordinary sound in air is mechanical. Comparing them lets pupils see that both have frequency and wavelength, but the physical quantities that oscillate are different.

A tutor should ask which physical entity oscillates in the examples rather than describe both as waves made of particles physically moving across the whole journey.

Transverse wave displacement is perpendicular

In a transverse mechanical wave, the displacement direction of medium elements is perpendicular to the wave-propagation direction. A sinusoidal wave travelling to the right on a string may move string elements up and down. That vertical motion should not be confused with the horizontal movement of the waveform along the string.

If the wave propagates rightward but a point on the string is currently moving downward, both statements can be correct. The displacement of the local point and the propagation direction are distinct arrows.

A useful diagnostic sketch shows rightward propagation and asks for allowed particle motion directions. Reversing those labels is a frequent cause of graph errors.

Longitudinal particle motion is parallel

In a longitudinal wave, medium particles oscillate along the direction of wave travel. For sound in air, compressions and rarefactions propagate while local air particles move back and forth around their mean positions. No individual air molecule needs to travel from a speaker all the way to a listener for the wave to transfer energy.

A snapshot of a spring with regions of densely packed coils can represent compressions. The spacing pattern changes over distance but does not necessarily show a permanent transport of the spring’s matter.

Ask a student to mark a compression and the local displacement direction. The latter is not the same thing as the direction the compression pattern is moving.

Displacement and amplitude must be distinguished

Instantaneous displacement x is a signed departure of an oscillating element from equilibrium. Amplitude A is the maximum magnitude of that displacement in the specified oscillation model. A point can pass through zero displacement repeatedly while still participating in a wave of nonzero amplitude.

On a transverse displacement graph ranging from −4 mm to +4 mm, amplitude is 4 mm and peak-to-peak vertical span is 8 mm. The graph’s vertical units must be read before interpreting its height.

A tutor should ask learners to identify x and A at several labelled positions and instants. This prevents reading the entire vertical span as the amplitude.

Frequency is cycles per second

Frequency f is the number of complete oscillation cycles per unit time and has the SI unit hertz, equivalent to s⁻¹. The period T is the time for one complete cycle, giving f=1/T. A larger frequency means a smaller period for the same periodic process.

If a point completes five cycles in two seconds, its frequency is 2.5 Hz and period is 0.40 s. These are temporal properties, not lengths along a position graph.

A tutor can ask whether five visible crests across a page necessarily indicate 2.5 Hz. Without a time scale, the answer is no.

Wavelength describes spatial repetition

Wavelength λ is the distance between adjacent points at the same phase on a progressive periodic wave. For a transverse sinusoid this might be the distance from crest to next crest; for a longitudinal pressure wave it can be the distance between adjacent compressions. The relevant graph must have position on the horizontal axis.

A sketch with crests at x=0.20 m and x=0.80 m has wavelength λ=0.60 m. The vertical amplitude is a separate quantity with the units shown on its axis.

Ask a pupil to compare a crest-to-trough distance with a crest-to-crest distance. The former is normally λ/2 in a sinusoidal spatial graph, while the latter is λ.

Phase tells where an oscillation is in its cycle

Phase characterises the state of an oscillation within its repeating cycle. Phase difference compares the cycles of two oscillations or two points and can be expressed in radians. A complete cycle corresponds to 2π rad of phase, while half a cycle corresponds to π rad.

For points one quarter wavelength apart along a suitable sinusoidal progressive wave, the phase difference magnitude is π/2 radians, modulo the convention for wave-travel direction. Time separation of T/4 likewise corresponds to a quarter-cycle offset.

A tutor can have the learner label phase positions on one sine curve rather than memorize isolated fraction-to-radian conversions.

A displacement–position graph is a snapshot

A plot of displacement against position at a fixed time shows the shape of the disturbance across the medium at that instant. From it the spatial wavelength and amplitude can be read, but period requires temporal information. A single spatial snapshot does not by itself tell how many times one point oscillates each second.

If the horizontal axis spans metres and two adjacent crests are 0.50 m apart, wavelength is 0.50 m. Saying the period is 0.50 s merely because the numerical gap is 0.50 confuses units and axes.

A tutor should require the pupil to annotate the graph title as “fixed time, varying position” before any calculation.

A displacement–time graph follows one location

A plot of displacement against time at a fixed position shows how that medium element oscillates. Adjacent peaks are separated by one period T. This graph gives amplitude and frequency but not wavelength without extra wave-speed or spatial information.

If adjacent displacement maxima occur at t=0.30 s and t=0.50 s, T=0.20 s and f=5.0 Hz. The learner should avoid calling the 0.20 s time gap a wavelength.

The tutor can put two graphs side by side and ask for every quantity that can actually be read from each. Correct units are the decisive check.

The same graph shape can encode different quantities

An identical-looking sinusoidal curve can describe displacement against position, displacement against time, pressure variation against position or electric-field strength against time. The physical interpretation changes with the axis labels. A visual wave shape does not automatically establish the measured property.

A pressure-versus-position graph for a longitudinal sound wave can have positive and negative deviations about equilibrium pressure while the air particles’ displacement graph is a different representation. One should not equate the curves without a model.

Ask students to name the dependent variable in words and units first. That simple discipline prevents several otherwise costly H2 mistakes.

Deriving v=fλ

A progressive wave advances by one wavelength during one period under the simple uniform-speed model. Therefore v=distance/time=λ/T=fλ because f=1/T. This is a relationship among propagation speed, frequency and wavelength, not the instantaneous speed of a vibrating medium particle.

If f=40 Hz and λ=0.75 m, propagation speed is v=30 m s⁻¹. A point on the medium need not move through 30 metres in one second; it can oscillate within a much smaller local range.

A tutor should ask pupils to explain the “one wavelength per period” picture and distinguish transport of the waveform from the path of a material particle.

Worked frequency and wavelength calculation

Original teaching example. A sound wave travels at 340 m s⁻¹ in the specified gas medium and has frequency 680 Hz. Its wavelength is λ=v/f=340/680=0.50 m. The result is a spatial separation, not a time interval.

If frequency doubles while speed remains 340 m s⁻¹, wavelength halves to 0.25 m. If the medium changes and speed changes while frequency is held fixed by the source, wavelength changes in proportion to speed.

A tutor can challenge the learner to derive both ratios without repeating the full calculation. That establishes conceptual control of v=fλ.

A wave entering a new medium

At a boundary, the source frequency generally remains fixed while the phase speed and wavelength may change for transmitted waves in another medium under ordinary continuity conditions. It is wrong to assume every change in wave speed automatically changes the source frequency. The boundary and driving source should be identified.

Suppose a monochromatic wave has f=50 Hz, speed 100 m s⁻¹ in medium A and speed 150 m s⁻¹ in medium B. Wavelength changes from 2.0 m to 3.0 m, while frequency remains 50 Hz.

Ask why the wave cannot have a discontinuous number of oscillations per second on either side of a stationary interface under the simple model.

Phase and direction of propagation

For a sinusoidal progressive wave written y=A sin(ωt−kx), the sign of the spatial term is associated with a wave travelling in the +x direction under the stated convention. For y=A sin(ωt+kx), the corresponding pattern travels in the −x direction. A sign change is not merely an arbitrary algebraic decoration.

At fixed phase ωt−kx=C, increasing time requires increasing x to maintain the same phase, so the first expression propagates rightward. This reasoning works without memorising separate direction rules for sine and cosine.

A tutor can ask learners to follow one crest between two times and infer the sign of wave travel from the observed shift.

Particle velocity is not propagation speed

In a travelling string wave, particle velocity is ∂y/∂t, describing local up/down motion in the transverse model. Wave speed is the rate at which a constant-phase pattern travels along x. These are different mathematical derivatives. Confusing them can produce a physically impossible particle displacement.

For y=A sin(ωt−kx), local transverse velocity is Aω cos(ωt−kx) while phase propagation speed is ω/k. A student should distinguish their directions and possibly very different magnitudes.

A tutor can ask for a sketch of a crest moving right as a marked string point crosses equilibrium vertically. The picture clarifies the two motions.

Progressive waves transport energy

A progressive wave can transfer energy and momentum through a system while the medium elements oscillate locally rather than moving bodily with the disturbance. This is a key syllabus concept. Ordinary ripples, sound and electromagnetic waves differ in physical mechanism, but the energy-transfer distinction remains important.

Imagine a cork bobbing on small water ripples. It may move around a local position while wave crests pass across the surface. The actual motion of water in real waves can include more complex transport, so the simple example illustrates rather than defines all fluids.

Ask whether the cork must travel from the source to a distant shore for the wave to carry energy there. That is not required.

Intensity is power transferred per area

Wave intensity I is power crossing a unit area under the appropriate definition, with SI unit W m⁻². It is not the same as amplitude, energy of one isolated particle, or the total power of the source. A detector measuring at a particular distance receives power distributed over a specified collecting area.

If 12 W crosses a perpendicular surface of 3.0 m² uniformly, intensity is 4.0 W m⁻². If the same power is distributed over 6.0 m², intensity halves to 2.0 W m⁻².

A tutor can ask what remains constant when the collecting area changes and why a larger area does not itself create more radiated power.

For comparable waves intensity scales with amplitude squared

The syllabus specifies I∝A² for progressive waves under comparable conditions. If a wave’s amplitude doubles, intensity becomes four times as large. If amplitude triples, intensity becomes nine times. Conversely, halving intensity reduces amplitude by a factor 1/√2, not exactly one-half.

Take initial amplitude A₁=2 mm and intensity I₁=5 arbitrary intensity units. At A₂=6 mm, I₂/I₁=(6/2)²=9, giving I₂=45 corresponding units under the same medium and wave type.

A tutor should ask pupils which quantity is proportional to the square. Writing I∝A instead would incorrectly yield a factor three.

Why doubling intensity does not double amplitude

If I₂=2I₁ under the same I∝A² relation, then A₂/A₁=√2. This square-root inversion matters when interpreting a measured intensity graph or filtering experiment. An apparently small change in amplitude can correspond to a larger relative intensity change.

For initial amplitude 1.0 unit, doubling intensity requires amplitude about 1.414 units, while quadrupling intensity requires amplitude two units.

A tutor can change an intensity ratio into an amplitude-ratio question without numbers and ask learners to solve symbolically first.

Inverse-square intensity from a point source

For a point source radiating uniformly in three dimensions with no energy loss and no absorption, the total power is distributed over spheres whose area is 4πr². Consequently intensity I=P/(4πr²), so I∝1/r² at fixed source power P. The spherical geometry explains the inverse-square law.

If the distance doubles, a receiving unit area gets one quarter the intensity under the idealised model. If distance triples, it gets one ninth. Real directional sources and absorption can change the relationship.

A tutor should ask pupils why the denominator contains r²: sphere area grows as the square of radius. This is better than memorising the ratio alone.

Worked inverse-square calculation

Original example. A point-source wave has intensity 80 W m⁻² at r=2.0 m in the no-loss isotropic model. At r=5.0 m, I₂=80(2/5)²=12.8 W m⁻². The amplitude ratio is √(12.8/80)=0.4 under comparable local wave properties.

A pupil who reports 80(2/5)=32 W m⁻² has used inverse distance rather than inverse square. A separate mistake is assuming amplitude also scales as inverse square; it scales as 1/r in this ideal far-field relation.

The tutor can ask which physical condition must hold for this ratio to apply: unchanged source power and the specified spreading geometry.

A directional source is a model limit

A loudspeaker or antenna may send energy preferentially in some directions, making the simple uniform-sphere formula inappropriate without additional information. Material absorption, reflections and interference can also affect intensity at a detector. A problem specifying a point source with no energy loss supplies the assumptions for the inverse-square relation.

If a measured intensity does not follow exactly 1/r², it may reflect apparatus geometry rather than an arithmetic error. A tutor should compare the stated assumptions before deciding whether a graph contradicts the ideal model.

Ask pupils to name one factor that changes actual measurements and the direction in which it could plausibly affect them.

Transverse waves can be polarised

Polarisation restricts the direction of oscillation of a transverse wave. For an electromagnetic wave, linear polarisation may select a particular direction of its electric-field oscillation. Longitudinal acoustic waves in an ordinary fluid cannot be plane-polarised in the same transverse displacement sense.

A filter that transmits only one chosen component of a transverse electric field changes the output amplitude and intensity. The transmitted beam should not be described as having changed its propagation direction merely because its polarisation orientation changed.

A tutor can contrast a vibrating rope with a compression wave in a spring and ask which has transverse vibration directions to select.

Why a polarising filter changes light

An ideal linear polariser transmits the component of the incident electric field aligned with its transmission axis. For plane-polarised incident light at angle θ between its electric-field direction and the filter axis, transmitted field amplitude is E₀cosθ in the simple ideal treatment.

Intensity is proportional to squared field amplitude, so the intensity transmission follows I=I₀cos²θ, Malus’ law. This is not generally the same factor as the transmitted amplitude.

A tutor should ask students to draw θ between polarisation directions, not between the ray’s propagation direction and the filter plane.

Malus’ law with zero angle

If the plane-polarised incident electric field is aligned with the ideal polariser’s transmission axis, θ=0 and cos²0=1. The filter transmits the specified incident intensity in the ideal lossless model. A real filter may have additional absorption, but the syllabus calculation assumes ideal conditions when no losses are supplied.

If the filter is rotated to θ=90°, the cosine term vanishes and the ideal transmitted intensity is zero. The maximum and minimum cases provide robust checks before a general angle calculation.

Ask the pupil to predict whether a 45° filter produces no transmission, half transmission or complete transmission, before using a calculator.

Worked 45-degree polariser problem

A plane-polarised light beam of intensity 80 W m⁻² meets an ideal polarising filter whose axis is at 45° to the initial electric-field direction. Malus’ law gives I=80cos²45°=80(1/2)=40 W m⁻². The amplitude is reduced by factor cos45°=1/√2.

A pupil who reports transmitted amplitude as half its original value has confused the amplitude and intensity factors. The correct intensity is half, while field amplitude is about 70.7% of the original.

A tutor can follow by asking the 60° case: intensity becomes one quarter, amplitude becomes one-half.

Worked 60-degree polariser problem

For an ideal filter at θ=60°, cos60°=1/2 and cos²60°=1/4. Thus if initial plane-polarised intensity is 100 W m⁻², transmitted intensity is 25 W m⁻². The electric-field amplitude ratio is 1/2.

The two ratios happen to be simple fractions, making this a good check on which physical quantity the question requests. At 30°, the intensity ratio would be cos²30°=3/4, not √3/2.

A tutor should ask pupils to state whether their answer is measured in W m⁻², volts per metre or a unitless ratio before accepting the number.

Two polarisers need two relative angles

With sequential ideal filters and initially plane-polarised light, apply Malus’ law one filter at a time using the angle between the incoming polarisation direction and each new filter axis. After passing an ideal first filter, the transmitted light is polarised along that first filter’s axis. The angle for the second filter is relative to the first, not always to the original light direction.

For input polarised along 0°, a first ideal filter at 30° transmits 3/4 of the intensity. A second at 60° relative to the original axis is another 30° rotation, giving total transmission (3/4)(3/4)=9/16 of the original.

A tutor should have pupils draw all three axes to prevent entering 60° again as the second filter’s relative angle.

What about unpolarised light?

For initially unpolarised light, an ideal first linear polariser transmits half of the initial average intensity under the usual elementary model. The output is then linearly polarised along the filter’s axis. Malus’ law can be applied to additional filters relative to that new axis.

A pupil who always uses I₀cos²θ on initially unpolarised light without defining a starting polarisation direction has introduced a nonexistent angle. The first polariser establishes one.

Ask whether a question specifies plane-polarised or unpolarised incident light before any numerical substitution. It determines the first step.

Polarisation does not prove a unique wavelength

A polariser selects the orientation of oscillating electric field, not one exact wavelength by definition. An optical system may include both polarisation elements and wavelength-selective elements, but those functions are distinct. A coloured sheet and a linear polarising filter should not be assumed equivalent from appearance alone.

A tutor can present two experiments, one varying filter orientation and one varying wavelength, and ask which variable isolates polarisation transmission.

This distinction also connects to the wider idea that frequency, wavelength and polarisation represent different properties of a wave.

Use intensity ratios instead of repeated numbers

When two intensities obey I₂/I₁=(A₂/A₁)² or I₂/I₁=(r₁/r₂)², solving a ratio can be faster and less error-prone than recalculating absolute source power. Ratios also help when a question supplies only proportional changes rather than an absolute starting intensity.

For an amplitude ratio A₂/A₁=0.60, the intensity ratio is 0.36. For a distance ratio r₂/r₁=1.5 from a point source, intensity ratio is 1/2.25≈0.444.

A tutor can ask pupils which constant cancels from each comparison and which assumptions must remain unchanged.

A graph’s slope depends on its axes

A graph of wave intensity against distance for an ideal point source is not linear over ordinary linear axes. Plotting intensity against 1/r² gives a straight-line relation through the origin under the ideal model. Its slope has units of intensity divided by inverse-square distance, such as watts for the appropriate source-power relationship.

For a plane-polarised beam, plotting I against cos²θ yields a linear relationship with gradient I₀ in the ideal model. The same graphing technique reveals different physical constants because the transformed horizontal variables differ.

A tutor should ask learners to derive an expected gradient and its units before plotting unfamiliar experimental data.

Distinguishing wavelength and period in data

A fictional graph shows three wave crests separated by 0.40 m in space, while another graph shows a fixed element producing peaks every 0.020 s. These observations yield λ=0.40 m and T=0.020 s, so f=50 Hz and v=fλ=20 m s⁻¹ under a consistent progressive-wave model.

If the student used the spatial separation as seconds or time separation as metres, the resulting speed would have incompatible or implausible units. The axes must be read first.

The tutor can reverse the information, giving v and T then asking for λ, to confirm flexibility beyond one memorised diagram.

Transverse and longitudinal graph interpretation

A displacement-versus-distance plot of a longitudinal wave can resemble a sine curve just as a transverse wave’s plot does. The distinction is not the shape of the plotted sine curve but the physical direction of the displacement relative to propagation. A pressure plot of a sound wave may show compressions and rarefactions rather than material displacement directly.

A student who labels every sinusoidal graph “transverse” is confusing graphical representation with vector motion. The tutor should ask which physical quantity is on the vertical axis and whether particle displacement is parallel or perpendicular to travel.

An unfamiliar figure with particle arrows provides a stronger classification test than a familiar row of crests.

The difference between Wave Motion and Superposition

Topic 10 covers the nature of waves, fundamental quantities, energy transfer, intensity and polarisation. Topic 11 adds superposition, standing waves, interference and diffraction. Those later effects depend on the language of phase and amplitude established in Topic 10 but have their own distinct equations and experimental patterns.

A pupil weak in calculating wavelength from a graph may need Topic 10 repair before attempting Young’s double slit. A pupil already secure in v=fλ but struggling with fringe spacing instead needs the separate superposition lesson.

The H2 Superposition and Diffraction guide covers that distinct reader intent.

A diagnostic mistake: confusing intensity and power

Power is energy transferred per unit time by a source or through a surface, measured in watts. Intensity is power crossing per unit area, measured in W m⁻². One source can deliver the same total power while the local intensity at larger distance falls because that power is spread across a greater area.

A hypothetical 20 W isotropic source has ideal intensity 20/(4πr²) at radius r; the source power remains 20 W as the observation radius changes under the no-loss model.

Ask the student which quantity would be expected to stay constant on two complete enclosing spheres and which decreases per square metre.

A diagnostic mistake: one point’s movement

A wave carrying energy to the right does not require a string element to move steadily rightward. In a transverse string wave the medium element can move up and down, while the waveform moves horizontally. In a longitudinal sound wave the material element moves back and forth about equilibrium in the travel direction, not monotonically all the way to the receiver.

A tutor can label a marker on the medium and sketch its movement over one period. Separately draw the travelling crest or compression at successive times.

This directly tests the syllabus requirement that progressive waves transfer energy without net transport of matter in the basic model.

A 90-minute three-pupil wave lesson

Start with individual retrieval on wavelength, period and which graph supplies each. Model one unfamiliar intensity-ratio question, asking why amplitude must be squared. Then assign differentiated tasks—transverse/longitudinal classification, inverse-square intensity or Malus’ law—to each pupil.

The tutor reviews the earliest wrong decision and requests a numerical and conceptual check. After individual work, learners compare methods and finish a new mixed graph question without a chapter label.

The small-group advantage lies in everyone explaining their own reasoning and receiving targeted feedback. It does not guarantee a grade by itself.

Four-week H2 wave-motion preparation

Week one establishes mechanical versus electromagnetic waves and precise wave vocabulary. Week two concentrates on space versus time graphs, phase differences and v=fλ. Week three develops energy transfer, intensity proportional to amplitude squared and the ideal inverse-square point-source model.

Week four focuses on polarisation, Malus’ law and combined intensity-ratio tasks, followed by an unfamiliar data-interpretation question. A short delayed quiz revisits earlier errors every week.

The sequence is adjustable to each learner’s starting knowledge; no fixed number of sessions guarantees full mastery or an A-Level score.

What parents can recognise as progress

Ask why a wave has wavelength in metres but period in seconds, why a string element need not travel across the room for energy to be transferred, and why rotating a polariser by 60° reduces intensity to one quarter in the ideal plane-polarised case. Each requires more than formula recall.

Compare a baseline school mistake with a new independent graph or polariser problem after feedback. Look for correct axes, unit labels, squared intensity relationships and explicit model assumptions.

A responsible tutor explains what the pupil can now do independently and which specific skills remain weak.

Frequently asked questions about wave motion

Is Wave Motion examined in 2027 H2 Physics? Yes, Topic 10 of syllabus 9478. Does it include Malus’ law? Yes, using intensity proportional to cos²θ and amplitude interpretation. Are transverse and longitudinal graphs assessed? Yes. Does v=fλ describe particle speed? No, it gives wave propagation speed.

How does intensity change when amplitude doubles? It becomes four times as large under comparable conditions. How does intensity change when distance doubles from a lossless isotropic point source? It becomes one quarter as large.

Does this guide confirm a group vacancy? No, confirm the current tutor, fee and timetable directly.

Related Bukit Timah Physics guides and contact

The subject hub is Bukit Timah JC Physics H1/H2 Tuition. Distinct focused guides address Superposition and Diffraction, SHM and Resonance and Quantum Physics.

Check SEAB 2027 H2 Physics Topic 10 for examination scope and the Clementi small-group tutorial reference for teaching standards.

For enquiries use eduKate Singapore or WhatsApp for H2 Wave Motion tuition. Verify actual tutor availability, group fit and fees.