The 2027 PhysicsBowl paper has not yet been released. This page offers a topic forecast based on recent patterns plus 25 original practice questions (not the real paper) for early training. Scan the QR code to receive the exam and step-by-step solutions the moment they are released.
The 2027 paper is not yet released; the 25 forecast-based practice questions start instantly, and the paper will be shared via QR code as soon as it is available.2027 Physics Bowl prep overview and predicted highlights.
The 2027 PhysicsBowl papers have not yet been released. Once the post-exam quiet period ends, we will publish the full paper with question-by-question solutions here at the first opportunity. Scan the QR code to be among the first to receive the real exam and answers.
Until the paper is released, this page offers two things: a forecast of the topic breakdown based on recent years (the percentages below are all predictions) to help you focus your review early, and 25 completely original PhysicsBowl-style practice questions (not the actual 2027 paper), arranged in basic, intermediate and challenge tiers, bilingual with step-by-step solutions.
By long-standing convention the PhysicsBowl is run by the American Association of Physics Teachers (AAPT), with the exam in spring (around late March to early April) and registration deadlines per the official announcement: 40 multiple-choice questions in 45 minutes, points for correct answers with no penalty for wrong ones, calculators allowed, entirely in English, and Division 1 and Division 2 ranked and awarded separately. Official AAPT announcements prevail for the exact details.
2027 Physics Bowl predicted topic areas and weights based on recent trends.
Forecast about 38%: kinematics and energy-momentum remain the review mainline; gravitation and simple harmonic motion deserve special drills.
Forecast about 22%: circuit analysis and induction should stay central, with a capacitor item most likely retained.
Forecast about 17%: refraction and interference-diffraction should keep rotating in; standing waves and harmonics are worth noting.
Forecast about 11%: specific heat, gas laws and heat transfer should keep their high-yield slot.
Forecast about 12%: the photoelectric effect, atomic energy levels and basic relativity should appear reliably.
2027 Physics Bowl predicted-topic original mock questions (Basic · Medium · Hard; not the real paper) — submit to grade and view step-by-step solutions.
A ferry crosses a 300 m-wide river at a steady 1.5 m/s. How many seconds does one crossing take?
Correct answer: D
Uniform motion: t = s/v = 300/1.5 = 200 s. Choice C multiplies distance by speed and E divides speed by distance. Core: time = distance divided by speed.An elevator accelerates upward at 2 m/s2. What force does an 80 kg passenger exert on the floor? (g = 10 m/s2)
Correct answer: E
Accelerating upward gives an apparent weight N = m(g + a) = 80 × 12 = 960 N. Choice C ignores the acceleration (only mg) and B uses g − a, the case of downward acceleration. Core: apply Newton second law along the vertical axis.A race car starts from rest and reaches 30 m/s after 12 s of uniform acceleration. What is its acceleration in m/s2?
Correct answer: A
a = Δv/Δt = 30/12 = 2.5 m/s2. Choice B divides time by speed and E uses v × t as the acceleration. Core: acceleration = change in velocity divided by time.A 470 Ω resistor carries a current of 20 mA. What voltage appears across it?
Correct answer: B
Convert 20 mA = 0.02 A first, then V = IR = 0.02 × 470 = 9.4 V. Choice D mishandles the milliamp conversion and C matches 50 mA. Core: convert milliamps to amps before using V = IR.Resistors of 6 Ω, 9 Ω and 15 Ω are connected in series. What is the total resistance?
Correct answer: C
Series resistances add: R = 6 + 9 + 15 = 30 Ω. Choice A treats them as parallel (about 3 Ω) and D takes the average. Core: series resistances add directly.How much heat is needed to raise 0.4 kg of iron from 25 ℃ to 65 ℃? (specific heat of iron c = 450 J/(kg·℃))
Correct answer: E
Q = mcΔT = 0.4 × 450 × 40 = 7200 J = 7.2 kJ. Choice B amounts to using 0.8 kg and C is a power-of-ten slip. Core: Q = mcΔT with a temperature change of 40 ℃.A solid floats in a liquid of density 1000 kg/m3 with 25% of its volume above the surface. What is the density of the solid?
Correct answer: A
The submerged fraction is 75%, and floating makes the density equal to the liquid density times that fraction: 1000 × 0.75 = 750 kg/m3. Choice B uses the emerged fraction and E inverts the division. Core: floating density = liquid density × submerged fraction.Medical ultrasound has a frequency of 2 MHz and travels at about 1500 m/s in soft tissue. What is its wavelength in tissue, in millimeters?
Correct answer: B
λ = v/f = 1500/(2×106) = 7.5×10-4 m = 0.75 mm. Choice C forgets the MHz-to-Hz conversion and A slips one more power of ten. Core: wavelength = speed divided by frequency, with 1 MHz = 106 Hz.What is the energy of a photon of wavelength 500 nm? (hc ≈ 1240 eV·nm)
Correct answer: C
E = hc/λ = 1240/500 = 2.48 eV. Choice A inverts the ratio and B quotes hc itself as an energy. Core: photon energy is inversely proportional to wavelength.A 60 W incandescent lamp runs for 5 h straight. How much energy does it consume, in kilowatt-hours?
Correct answer: D
W = Pt = 60 W × 5 h = 300 Wh = 0.3 kWh, since 1 kWh = 1000 Wh. Choice C skips the unit conversion and A slips the decimal point when dividing by 100. Core: energy = power × time, converted from watt-hours to kilowatt-hours.A javelin is thrown at 20 m/s at 45° above the horizontal (g = 10 m/s2). How far from the launch point does it land?
Correct answer: E
At 45° the range is R = v2sin2θ/g = 400 × sin90°/10 = 40 m. Choice C drops the cosine factor and A is the maximum height (10 m), not the range. Core: at 45° the range equals v2/g.A mass m on a light spring of stiffness k oscillates with a period of 0.4 s. If the mass is replaced by 3m, what is the new period?
Correct answer: C
T ∝ √m, so tripling the mass scales the period by √3 ≈ 1.73: T′ = 0.4 × 1.73 ≈ 0.69 s. Choice E scales linearly and A divides by √3. Core: the spring period scales with the square root of the mass.A 10 kg sled slides across level ice at 10 m/s. Friction then does −375 J of work on it. What is its speed at that point?
Correct answer: B
Work-energy theorem: ½mv2 = ½ × 10 × 102 − 375 = 500 − 375 = 125 J, so v = √(2×125/10) = 5 m/s. Choice A lets the kinetic energy fall linearly with speed and D assumes friction does no work. Core: the change in kinetic energy equals the total work done.A 12 V battery drives 20 Ω and 40 Ω resistors in series. What voltage appears across the 40 Ω resistor?
Correct answer: D
Voltage divides in proportion to resistance: U = 12 × 40/(20 + 40) = 8 V. Choice A is the drop across the 20 Ω resistor and B is the even-split intuition. Core: in a series circuit, U ∝ R.A proton (q = 1.6×10-19 C, m = 1.67×10-27 kg) enters a 0.2 T field perpendicular to it at 4×105 m/s and moves in a circle. What is its orbital radius, roughly?
Correct answer: A
The magnetic force provides the centripetal force: r = mv/(qB) = (1.67×10-27 × 4×105)/(1.6×10-19 × 0.2) ≈ 2.1×10-2 m = 2.1 cm. Choices B, C and D are power-of-ten slips. Core: r = mv/(qB).A 6 μF capacitor and a 3 μF capacitor are connected in series across a 12 V source. What is the voltage across the 6 μF capacitor?
Correct answer: E
The series equivalent is C = (6×3)/(6+3) = 2 μF, both capacitors hold the same charge Q = 2 × 12 = 24 μC, so U6 = Q/C = 24/6 = 4 V. Choice A is the voltage across the 3 μF capacitor: in series, voltage splits inversely with capacitance. Core: series capacitors share charge and divide voltage inversely.In a double-slit experiment, red light of wavelength 500 nm, a 4 m screen distance and a 0.25 mm slit spacing are used. How far from the center of the screen, in millimeters, is the second-order (m = 2) bright fringe?
Correct answer: B
The fringe spacing is Δy = λL/d = (5×10-7 × 4)/(2.5×10-4) = 8 mm, so the second-order fringe sits at 2Δy = 16 mm. Choice C is the first order and D the third. Core: bright fringes sit at y = mλL/d.Light in air strikes a water surface (n = 1.33) at an incidence angle of 60°. What is the refraction angle, roughly?
Correct answer: C
Snell law: sinθ2 = sin60°/1.33 = 0.866/1.33 ≈ 0.65, so θ2 ≈ 41°. Choice A divides the angle itself by 1.33 and E ignores refraction entirely. Core: light entering a denser medium bends toward the normal.A vessel holds an ideal gas at 298 K, 101 kPa and 24.6 L. About how many moles of gas are in it? (R = 8.31 J/(mol·K))
Correct answer: A
PV = nRT gives n = (101000 × 0.0246)/(8.31 × 298) ≈ 2485/2476 ≈ 1.0 mol. The classic slip is forgetting to convert liters to cubic meters (24.6 L = 0.0246 m3), which is off by 1000. Core: use PV = nRT with the volume in cubic meters.A metal has a work function of 2.2 eV (hc ≈ 1240 eV·nm). What is the longest wavelength that can still eject electrons, in nanometers?
Correct answer: D
At threshold the photon energy equals the work function: λmax = 1240/2.2 ≈ 564 nm ≈ 560 nm. Choice A divides by 2 again and C doubles the wavelength. Core: the threshold wavelength = hc divided by the work function.An ideal transformer has 1200 primary turns connected to 240 V AC and 60 secondary turns. A 24 W lamp on the secondary glows normally. What current flows in the primary?
Correct answer: E
The 20:1 ratio gives a secondary voltage of 240/20 = 12 V; the lamp draws I2 = 24/12 = 2 A; with ideal power transfer the primary current is I1 = P/U1 = 24/240 = 0.1 A. Choice A is the secondary current. Core: an ideal transformer conserves power while voltage follows the turn ratio.A uniform flywheel (I = ½MR2) of mass 8 kg and radius 0.25 m starts from rest under a constant torque of 1.5 N·m for 4 s. How many revolutions does it complete in that time?
Correct answer: C
I = ½ × 8 × 0.252 = 0.25 kg·m2, the angular acceleration is α = τ/I = 1.5/0.25 = 6 rad/s2, the angle turned is θ = ½αt2 = 48 rad, and 48/(2π) ≈ 7.6 revolutions. Choice D quotes the angular speed (24 rad/s) and E counts radians as revolutions. Core: find α from τ = Iα, then θ, then divide by 2π.Suppose a satellite skimming the surface of Earth (orbit radius R) has period T0. Another satellite orbits at radius 4R. How many times T0 is its period?
Correct answer: A
Kepler third law gives T2 ∝ r3: four times the radius means 43/2 = 8 times the period. Choice B scales linearly and D squares the radius factor. Core: T ∝ r3/2.A particle whose rest-frame lifetime is 2×10-8 s (think of a muon) moves through the lab at 0.8c. What lifetime does the lab measure?
Correct answer: D
γ = 1/√(1 − 0.82) = 1/0.6 ≈ 1.67, so the lab lifetime is γτ0 = 1.67 × 2×10-8 ≈ 3.3×10-8 s. Choice B multiplies by 0.8, reversing the direction of time dilation. Core: time dilation Δt = γτ0 lengthens the observed lifetime.A pipe 1.7 m long is open at both ends, with the air column vibrating at sound speed 340 m/s. What is the frequency of its fifth harmonic?
Correct answer: B
The open pipe fundamental is f1 = v/(2L) = 340/(2 × 1.7) = 100 Hz, and open pipes support every integer multiple, so f5 = 5 × 100 = 500 Hz. Choice D treats it as a pipe closed at one end (odd harmonics only, fifth resonance 900 Hz). Core: a pipe open at both ends supports all harmonics n·v/(2L).Unified Physics Bowl specs, consistent across years.
Division 1 is for first-year physics students (no calculus); Division 2 is for second-year and AP Physics C students. The two divisions are ranked and awarded separately — students must choose one and cannot take both. Pick based on your level; our advisor can help.
Four steps · Overview / Topics / Practice / Prep
Read the 2027 Physics Bowl overview and format specs to grasp the year’s style.
Review the key topics and weights, and locate your weak areas.
Complete the 25 mock questions; submit for auto-grading and right/wrong marks.
Open the step-by-step solutions, learn from mistakes, and scan for full papers to push for national and global rankings.
Prep tips and score-boosting advice for the 2027 Physics Bowl.
The 2027 paper is not out yet, but the topic system is highly stable. Work through the core topics following the forecast below, so when the paper arrives you only patch the gaps and the quiet period never derails your schedule.
Division 1 avoids calculus and serves first-year and beginning students; Division 2 serves second-year and AP Physics C students. The divisions are ranked and awarded separately with no double entry, so deciding early lets you train at the right level.
The drills on this page run basic (1-10), intermediate (11-20) and challenge (21-25): race the basic tier for accuracy, train multi-step reasoning in the middle, and attack the synthesis problems at the top, reading both language versions of every solution you miss.
The PhysicsBowl takes place in spring (around late March to early April) and registration usually closes per the official announcement each year. Once 2027 registration opens, complete it early to secure your seat, and save the final week for a full timed rehearsal.
Scan the QR code and you will be notified the moment the 2027 paper and solutions go live. Take one fully timed mock attempt first, tally errors by topic, then return to the matching drills on this page to consolidate.
Frequent questions about the 2027 Physics Bowl prep forecast and paper release.
Scan to add the advisor for 2027 Physics Bowl past papers, answer keys and solutions, plus a custom prep plan.
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