75-Archetype SyllabusPhysics • ARCH-P-11 • Spec P6

Full 6-Card Lesson 15-Question Timed Drill

UAT-UK SPEC CODE: P6 (Waves)ASSUMED MATHS 1 PREREQUISITE: M1.2FREQUENCY: VERY HIGH

Wave Equation (v = fλ), Refraction Invariance, Pulse-Echo Sonar (d = ½vt), Relative Waves & Redshift

Deconstructed from 35 past UAT-UK questions (15.02% of all historical Physics papers). Students using standard A-Level classroom methods spend an average of 130s on this archetype—blowing past the 90s ESAT budget. Using the 2-line Sub-90 heuristic below compresses solve time to 35s (saving 95s per question).

Historical Frequency

35 Past Qs

15.02% of Physics

Classroom Trap Time

130s

+40s over 90s budget

Sub-90 Target Time

35s

Banks +95s on the clock

Dominant UI Format

5-Option A–E

Maths 1 Skill: M1.2

Card 1 & Card 2 Preview: The Classroom Time Trap vs. Sub-90 2-Line Rule

Excerpted from our interactive 6-Step Topic Lesson for ARCH-P-11.

Launch All 6 Active-Recall Cards

CARD 1 OF 6 • THE CLASSROOM TIME TRAP (130s)

Why Students Bleed Time:

In one complete oscillation, a particle moves from

0 \to +3\text{ cm} \to 0 \to -3\text{ cm} \to 0

, covering

4 \times 3 = 12\text{ cm}

. In

1\text{ min} = 60\text{ s}

, the particle completes

N = f t = 4 \times 60 = 240

cycles, travelling

12 \times 240 = 2880\text{ cm}

(~115s).

In 35 past UAT-UK questions (15.02% of Physics), candidates lose 95s by forgetting that pulse-echo time t is a round trip (2d) and one full transverse oscillation covers 4 amplitudes (4a). Instead, apply P6 with Maths 1 skill M1.2.

CARD 2 OF 6 • THE 2-LINE SUB-90 HEURISTIC (<35s)

**Line 1 (Ignore

\lambda

, Use

4A

per Cycle):** Wavelength

\lambda = 5\text{ cm}

is a distractor! Distance per cycle

= 4A = 12\text{ cm}

**Line 2 (Multiply by

60 f t_{\text{min}}

):**

d = 12 \times 4 \times 60 = 2880\text{ cm}

(25s).

Sanity & Limit Check: Verify units/signs against factor_of_two_or_stoichiometry_trap (Calculating sonar/ultrasound reflection depth as d = v*t instead of d = (1/2)*v*t, or particle distance per cycle as 2A instead of 4A) and fence_post_or_domain_trap (Dividing wave graph length L by N crests instead of (N - 1) wavelengths).

Examiner Distractor Blueprint for ARCH-P-11

FOIL #1factor_of_two_or_stoichiometry_trap

Calculating sonar/ultrasound reflection depth as d = v*t instead of d = (1/2)*v*t, or particle distance per cycle as 2A instead of 4A

Forgetting that pulse-echo time t is a round trip (2d) and one full transverse oscillation covers 4 amplitudes (4A).

Open Factor-of-2 / Stoichiometry Clinic

FOIL #2fence_post_or_domain_trap

Dividing wave graph length L by N crests instead of (N - 1) wavelengths

Fence-post error: N wave crests span (N - 1) complete wavelengths λ.

Open Fence-Post / Domain Trap Clinic

FOIL #3multi_statement_linchpin_foil

Claiming wave frequency f changes during refraction or that the speed of light c in a vacuum changes for a receding star

Frequency f is invariant across refractive boundaries; speed of light c in a vacuum is invariant under relative source motion.

Open Multi-Statement Linchpin Foil Clinic

FOIL #4sign_or_direction_flip

Subtracting wave speed from ship speed |v_ship - v_wave| instead of adding (v_ship + v_wave) when moving in opposite directions

Head-on relative wave encounter speed is v_rel = v_ship + v_wave.

Open Sign / Direction Flip Clinic

Try 1 Live Sample Question Under the 90-Second Stopwatch

Press W to open the 2-line dry-wipe scratchpad, select A–E, and lock in to reveal the Dual-View solution.

Full 6-Card Lesson Launch All 15 Questions (ARCH-P-11)

ARCH-P-11: Wave Equation (v = fλ), Refraction Invariance, Pulse-Echo Sonar (d = ½vt), Relative Waves & Redshift (Sample)Physics

00:00.0

SUB-90 ZONE (<35S)

0.0s35s Sub-9090s ESAT Budget150s Classroom

Question 1 of 1ARCH-P-11 (6-Card Lesson)Format: Standard 5-Option

Right-click any option to cross out • Keys A–E + Enter

Question 1 of 1 • 90s Target

Ready to Start Question 1?

The question stem, diagram, and answer options are hidden behind this pre-start gate. When you click below, the question will reveal and your 90-second split stopwatch will immediately begin ticking.

Physics•ARCH-P-11•Standard 5-Option

or press Enter to start