How should I use these HSC Physics practice questions?

Pick 4-6 questions per practice session. Allocate 1.5-2 minutes per mark. Show all working, including the equation used, the substitution of values, and the final answer with units. Aim for 6-8 full past papers under timed 3-hour conditions in Term 4.

Why is showing working important in HSC Physics?

Markers award method marks for the correct equation and substitution even when the arithmetic gives a wrong answer. Sloppy working that gets the right answer scores lower than careful working with a small arithmetic error. Always show - the equation, the substitution of values, and the final answer with units.

NSWPhysics

30 HSC Physics practice questions for 2026 (Modules 5-8)

30 HSC Physics practice questions modelled on past NESA exam patterns. Grouped by module (Advanced Mechanics, Electromagnetism, Nature of Light, From the Universe to the Atom). Use these under timed conditions.

Generated by Claude Opus 4.814 min readNESA-PHYS-12Updated 2026-06-20

Reviewed by: AI editorial process; not yet individually human-reviewed

Jump to a section

How to use this question bank
Module 5: Advanced Mechanics (1-7)
Module 6: Electromagnetism (8-15)
Module 7: The Nature of Light (16-22)
Module 8: From the Universe to the Atom (23-30)
Marking your own work
Past papers
Related guides
Check your knowledge

How to use this question bank

HSC Physics is a 3-hour exam covering four Year 12 modules. These 30 practice questions span the modules and are modelled on past NESA paper patterns.

Three rules:

Show every step. Write the equation, substitute values, calculate, state the answer with units.
Use the correct sign conventions. Especially for projectile motion and Lenz's law.
Draw diagrams. Free-body diagrams, ray diagrams, field-line diagrams. Many marks are reserved for clear labelled diagrams.

Module 5: Advanced Mechanics (1-7)

A ball is projected horizontally at 15 m/s from a cliff 25 m high. Calculate (a) the time of flight, (b) the horizontal range, (c) the velocity at impact. ( $g = 9.8 \text{ m/s}^2$ ) (6 marks)
A car of mass 1200 kg rounds a flat (unbanked) curve of radius 50 m at 15 m/s. Calculate the centripetal force required and explain what provides it. (4 marks)
A satellite orbits Earth at altitude 600 km. Calculate its orbital period. ( $M_\text{Earth} = 5.97 \times 10^{24}$ kg, $R_\text{Earth} = 6.37 \times 10^6$ m, $G = 6.67 \times 10^{-11}$ N m²/kg²) (5 marks)
State Kepler's three laws of planetary motion. Use a diagram to illustrate the second law. (5 marks)
A 2.0 kg object on a string of length 1.5 m is whirled in a horizontal circle at 4.0 m/s. Calculate the tension in the string. (4 marks)
Derive an expression for the escape velocity from a planet of mass $M$ and radius $R$ . (5 marks)
A projectile is fired from ground level at 25 m/s at 60° above horizontal. Calculate the maximum height reached and the time to reach it. (5 marks)

Module 6: Electromagnetism (8-15)

An electron is fired horizontally at $2.0 \times 10^6$ m/s into a magnetic field of 0.10 T directed vertically. Calculate the magnitude of the force on the electron and describe its motion. ( $e = 1.6 \times 10^{-19}$ C) (5 marks)
A 0.50 m wire carrying 3.0 A current is placed at right angles to a magnetic field of 0.40 T. Calculate the force on the wire. State the direction (using the right-hand rule). (4 marks)

Reference triad for Q9: with I to the right and B upward, the right-hand rule places F out of the page. The same construction works for any orthogonal I and B pair.

Sketch the magnetic field around a current-carrying solenoid. Compare it to a bar magnet's field. (4 marks)
A coil of 200 turns and area 0.040 m² is in a magnetic field perpendicular to the coil. The field changes from 0.20 T to 0.80 T in 1.5 seconds. Calculate the average induced EMF. (4 marks)
State Lenz's law. Explain how it relates to the conservation of energy. (5 marks)
A transformer has 1200 primary turns and 60 secondary turns. The primary voltage is 240 V. Calculate the secondary voltage. If the primary current is 0.50 A, find the secondary current (assume ideal). (5 marks)
Explain why DC current does not produce an induced EMF in a transformer's secondary coil. (3 marks)
A copper ring is dropped through the field of a strong horseshoe magnet. Describe and explain the motion of the ring as it passes through the field. (5 marks)

Module 7: The Nature of Light (16-22)

State the wave equation $c = f\lambda$ and use it to calculate the wavelength of light with frequency $5.0 \times 10^{14}$ Hz. ( $c = 3.0 \times 10^8$ m/s) (3 marks)
Describe Young's double-slit experiment. Explain how the result supports the wave model of light. (5 marks)
The photoelectric effect cannot be explained by classical wave theory. State three experimental observations that classical theory failed to explain, and outline Einstein's photon explanation. (6 marks)
The work function of caesium is 2.0 eV. Calculate the threshold frequency. Photons of frequency $7.0 \times 10^{14}$ Hz strike a caesium surface. Calculate the maximum kinetic energy of emitted electrons. ( $h = 6.63 \times 10^{-34}$ J·s, $1 \text{ eV} = 1.6 \times 10^{-19}$ J) (6 marks)
State the postulates of special relativity. (3 marks)
A spaceship travels at $0.80c$ relative to Earth. The trip duration in the ship's frame is 5.0 years. Calculate the duration in Earth's frame. (4 marks)
Use $E = mc^2$ to calculate the energy equivalent of 1.0 gram of matter completely converted to energy. ( $c = 3.0 \times 10^8$ m/s) (3 marks)

Module 8: From the Universe to the Atom (23-30)

Describe the Hertzsprung-Russell diagram. Identify the main sequence and explain what determines a star's position on it. (5 marks)
Outline the evolutionary path of a low-mass star (like the Sun) from formation to its end state. (6 marks)
Distinguish between the Rutherford model and the Bohr model of the atom. (5 marks)
The energy levels of hydrogen are given by $E_n = -13.6/n^2$ eV. Calculate the wavelength of light emitted when an electron transitions from $n = 4$ to $n = 2$ . ( $h = 6.63 \times 10^{-34}$ J·s, $c = 3.0 \times 10^8$ m/s) (5 marks)

Reference for Q26: the n = 4 → n = 2 transition releases 2.55 eV of energy, which equates to a 486 nm visible-blue photon; the Hβ line of the Balmer series.

State the de Broglie hypothesis. Calculate the de Broglie wavelength of an electron travelling at $1.0 \times 10^6$ m/s. ( $m_e = 9.11 \times 10^{-31}$ kg, $h = 6.63 \times 10^{-34}$ J·s) (4 marks)
Classify quarks, leptons, and gauge bosons in the Standard Model. Give one named example of each. (5 marks)
Compare the four fundamental forces of nature in terms of relative strength and the particles that mediate them. (6 marks)
With reference to your school's chosen depth of study (e.g. medical imaging, semiconductors, particle accelerators), describe one application that uses quantum or relativistic physics. Evaluate its societal impact. (8 marks)

Marking your own work

For each question:

2-3 marks: short answer. Equation, substitution, answer with units.
4-6 marks: medium response. Show equation, derive or substitute, answer. Diagram if relevant.
7-9 marks: extended response. Multi-paragraph or multi-part. Include explanation, calculation, and evaluation.

Past papers

These practice questions complement past NESA exam papers; they do not replace them. NESA publishes papers at educationstandards.nsw.edu.au. Aim for 6-8 full past papers in Term 4.

Check your knowledge

A mix of definitional, calculation/explanation, and exam-style multi-part questions covering this topic. Aim to answer all under exam conditions, then check against the solutions block.

Constants: $g = 9.80$ m s $^{-2}$ ; $G = 6.67 \times 10^{-11}$ N m $^2$ kg $^{-2}$ ; $M_\text{Earth} = 5.97 \times 10^{24}$ kg; $R_\text{Earth} = 6.37 \times 10^6$ m; $h = 6.63 \times 10^{-34}$ J s; $c = 3.00 \times 10^8$ m s $^{-1}$ ; $e = 1.60 \times 10^{-19}$ C; $m_e = 9.11 \times 10^{-31}$ kg; $1$ eV $= 1.60 \times 10^{-19}$ J.

Define escape velocity and explain in 2 to 3 sentences why it is independent of the mass of the escaping object. (3 marks)
(a) A baseball is thrown from the top of a 30 m cliff at the MCG at 18 m s $^{-1}$ horizontally. Calculate the time it takes to hit the ground below and the horizontal distance from the base of the cliff. (b) Calculate the speed and angle of the velocity vector at impact. (5 marks)
The diagram shows a velocity-time graph for a projectile launched at 45 degrees from a horizontal surface and returning to the same height: $v_y$ on the y-axis decreasing linearly from $+v_0\sin 45°$ at $t = 0$ to zero at $t = t_\text{max}$ to $-v_0\sin 45°$ at $t = 2t_\text{max}$ . Given $v_0 = 30$ m s $^{-1}$ : (a) Determine $t_\text{max}$ . (b) Determine the maximum height (use area under graph or kinematics). (c) State why $v_x$ does not appear in the same graph. (4 marks)
(a, 3) State Faraday's law and Lenz's law in your own words. (b, 4) A square coil of side 0.20 m and 100 turns is removed from a 0.50 T field over 0.20 s. Calculate the magnitude of the average induced EMF, and the direction of induced current (clockwise or counter-clockwise viewed from the field's source). (c, 2) State why an iron core in the coil would not significantly affect the induced EMF calculation. (9 marks)
(a, 2) The work function of zinc is 4.31 eV. Calculate the threshold frequency for the photoelectric effect on zinc. (b, 3) UV light of wavelength 200 nm strikes a zinc surface. Calculate (i) the photon energy in eV, (ii) the maximum kinetic energy of emitted electrons. (c, 2) State and justify what happens if the intensity is halved. (7 marks)
The Australian-built parabolic radio dish at Parkes (the "Dish") detected the cosmic microwave background. Suppose a future Parkes-based satellite measures the redshift of a galaxy as 0.05. (a) Assuming $z = v/c$ (low-z approximation), calculate the recession velocity. (b) Using $H_0 = 70$ km s $^{-1}$ Mpc $^{-1}$ , calculate the distance to the galaxy in Mpc. (c) Estimate the apparent age of the light arriving from this galaxy in years (1 Mpc $= 3.26 \times 10^6$ light-years). (5 marks)
Compare the four fundamental forces (gravity, electromagnetic, strong, weak) in terms of (a) relative strength, (b) range, (c) the gauge boson(s) mediating each, (d) one phenomenon dominated by each. (6 marks)
A NSW-based satellite mission requires a geostationary orbit (period 24 h) above the equator. (a, 3) Calculate the orbital radius and altitude above Earth's surface. (b, 2) Calculate the orbital speed. (c, 3) The satellite has mass 1200 kg. Calculate its gravitational potential energy (with reference at infinity) and kinetic energy, and verify that $E_\text{total} = -GMm/(2r)$ . (d, 2) Briefly explain in 50 to 80 words why geostationary satellites cannot be placed over Sydney directly. (10 marks)

Solutions

Q1: Escape velocity is the minimum speed an object must have at the surface of a planet (or other body) to escape the planet's gravitational field without further propulsion. From energy conservation, $(1/2)mv_\text{esc}^2 - GMm/R = 0$ gives $v_\text{esc} = \sqrt{2GM/R}$ . The mass $m$ cancels from both sides because gravitational potential energy and kinetic energy are both proportional to $m$ ; this is a manifestation of the equivalence principle.
Q2: (a) Vertical: $h = (1/2)g t^2$ , $30 = 4.9 t^2$ , $t = \sqrt{30/4.9} = 2.474$ s. Horizontal range: $x = v_x t = 18 \times 2.474 = 44.5$ m. (b) At impact: $v_x = 18$ m s $^{-1}$ (unchanged); $v_y = g t = 9.8 \times 2.474 = 24.25$ m s $^{-1}$ downward. $v = \sqrt{18^2 + 24.25^2} = \sqrt{912.0} = 30.2$ m s $^{-1}$ . Angle below horizontal: $\theta = \tan^{-1}(24.25/18) = 53.4°$ .
Q3: $v_0 \sin 45° = 30 \times 0.707 = 21.2$ m s $^{-1}$ . (a) $t_\text{max} = 21.2 / 9.8 = 2.16$ s. (b) Max height $= (1/2)(v_{0y})(t_\text{max}) = (1/2)(21.2)(2.16) = 22.9$ m, or by kinematics: $h = v_{0y}^2/(2g) = 21.2^2/19.6 = 22.9$ m. (c) $v_x = v_0 \cos 45° = 21.2$ m s $^{-1}$ is constant throughout the flight (no horizontal acceleration); on a $v_y$ versus $t$ graph it does not appear.
Q4: (a) Faraday: an EMF is induced in a loop whenever the magnetic flux through it changes, with magnitude equal to the rate of change of flux multiplied by the number of turns. Lenz: the direction of induced current is such that its own magnetic field opposes the change in flux that produced it (a consequence of energy conservation). (b) $\Phi_i = BA = 0.50 \times 0.04 = 0.02$ Wb; $\Phi_f = 0$ ; $|\Delta\Phi| = 0.02$ Wb. $\varepsilon = N|\Delta\Phi|/\Delta t = 100 \times 0.02 / 0.20 = 10.0$ V. Direction: as flux decreases through the coil, the induced current creates a field in the same direction as the original to oppose the decrease - this is clockwise viewed from the original field's source side. (c) An iron core would amplify the original flux while it was present (changing $B_\text{effective}$ ) but the question gives $B = 0.50$ T as the applied field; the calculation uses applied flux, and as long as the iron does not saturate the calculation is unchanged. In practice the core remains magnetised slightly after withdrawal, but the steady-state EMF is essentially the same.
Q5: (a) $\phi = h f_0$ , so $f_0 = \phi/h = (4.31 \times 1.60 \times 10^{-19})/(6.63 \times 10^{-34}) = 1.04 \times 10^{15}$ Hz. (b) (i) $E = hc/\lambda = (6.63 \times 10^{-34} \times 3.00 \times 10^8)/(2.00 \times 10^{-7}) = 9.95 \times 10^{-19}$ J $= 6.22$ eV. (ii) Max KE = $E - \phi = 6.22 - 4.31 = 1.91$ eV $= 3.05 \times 10^{-19}$ J. (c) Halving intensity halves the number of photons per second but does not change photon energy. The number of electrons emitted halves, but each emitted electron retains the same maximum KE of 1.91 eV. This is the diagnostic test that distinguishes the photon model from classical wave theory.
Q6: (a) $v = zc = 0.05 \times 3.00 \times 10^5 = 1.50 \times 10^4$ km s $^{-1}$ . (b) $d = v/H_0 = 15000/70 = 214$ Mpc. (c) Light-travel time $\approx d/c$ . $d = 214 \times 3.26 \times 10^6 = 6.98 \times 10^8$ light-years. The light has been travelling for approximately 700 million years (a more careful cosmological calculation accounting for expansion gives a slightly larger value, but this is the standard HSC-level estimate).
Q7: (a) Strong (relative strength 1) > electromagnetic ( $10^{-2}$ ) > weak ( $10^{-6}$ ) > gravity ( $10^{-40}$ ). (b) Strong: $\sim 10^{-15}$ m (nuclear range); electromagnetic and gravity: infinite (inverse-square); weak: $\sim 10^{-18}$ m. (c) Strong: gluon (8 types); electromagnetic: photon; weak: $W^\pm$ and $Z^0$ ; gravity: hypothetical graviton (not yet detected; gravity not yet integrated into the Standard Model). (d) Strong: holds protons and neutrons together against Coulomb repulsion within a nucleus; electromagnetic: chemistry, light, and friction; weak: beta decay and neutrino interactions; gravity: planetary motion, stellar dynamics, cosmological expansion.
Q8: (a) From Kepler 3: $T^2 = (4\pi^2/GM)r^3$ , so $r^3 = GMT^2/(4\pi^2)$ . With $T = 86400$ s: $r^3 = (6.67 \times 10^{-11})(5.97 \times 10^{24})(86400)^2 / (4\pi^2) = 7.532 \times 10^{22}$ m $^3$ . $r = (7.532 \times 10^{22})^{1/3} = 4.223 \times 10^7$ m. Altitude $h = r - R_\text{Earth} = 4.223 \times 10^7 - 6.37 \times 10^6 = 3.59 \times 10^7$ m $\approx 35,900$ km. (b) $v = \sqrt{GM/r} = \sqrt{6.67 \times 10^{-11} \times 5.97 \times 10^{24} / 4.223 \times 10^7} = 3070$ m s $^{-1}$ . Check via $v = 2\pi r/T = 2\pi \times 4.223 \times 10^7 / 86400 = 3073$ m s $^{-1}$ . (c) $U = -GMm/r = -(6.67 \times 10^{-11})(5.97 \times 10^{24})(1200)/4.223 \times 10^7 = -1.131 \times 10^{10}$ J. $KE = (1/2)mv^2 = 0.5 \times 1200 \times 3070^2 = 5.65 \times 10^9$ J. Total energy = $-1.131 \times 10^{10} + 5.65 \times 10^9 = -5.66 \times 10^9$ J. Theoretical: $E = -GMm/(2r) = -5.66 \times 10^9$ J. Agreement confirmed. (d) A geostationary satellite must orbit in the equatorial plane (any non-equatorial orbit traces a figure-8 as seen from Earth rather than remaining stationary). Sydney is at latitude 34° S, well off the equator; a satellite directly above Sydney could only remain there in a non-orbital scenario, which would require continuous thrust. Geostationary satellites serving Sydney are placed above the equator at approximately 150° E longitude and observed from Sydney at an elevation angle near 55°.