75-Archetype SyllabusPhysics • ARCH-P-04 • Spec P3

Full 6-Card Lesson 15-Question Timed Drill

UAT-UK SPEC CODE: P3 (Mechanics)ASSUMED MATHS 1 PREREQUISITE: M4.14FREQUENCY: HIGH

1D Multi-Stage Kinematics (v–t Graph Areas/Gradients) & Constant-Acceleration SUVAT

Deconstructed from 12 past UAT-UK questions (5.15% of all historical Physics papers). Students using standard A-Level classroom methods spend an average of 145s on this archetype—blowing past the 90s ESAT budget. Using the 2-line Sub-90 heuristic below compresses solve time to 40s (saving 105s per question).

Historical Frequency

12 Past Qs

5.15% of Physics

Classroom Trap Time

145s

+55s over 90s budget

Sub-90 Target Time

40s

Banks +105s on the clock

Dominant UI Format

5-Option A–E

Maths 1 Skill: M4.14

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-04.

Launch All 6 Active-Recall Cards

CARD 1 OF 6 • THE CLASSROOM TIME TRAP (145s)

Why Students Bleed Time:

During the deceleration interval from

t = 40\text{ s}

t = 60\text{ s}

(

\Delta t = 20\text{ s}

), the acceleration is

a = \frac{0 - 20}{20} = -1\text{ m s}^{-2}

. Using

s = ut + \frac{1}{2}at^2

gives

s = 200\text{ m}

(~115s).

In 12 past UAT-UK questions (5.15% of Physics), candidates lose 105s by omitting the factor of 1/2 in s = (1/2)(u+v)t or 2 in v² = u² + 2as. Instead, apply P3 with Maths 1 skill M4.14.

CARD 2 OF 6 • THE 2-LINE SUB-90 HEURISTIC (<40s)

Line 1 (Isolate Right Triangle): Deceleration occurs only from

t = 40\text{ s}

60\text{ s}

(

\Delta t = 20\text{ s}

Line 2 (Triangle Area):

s = \frac{1}{2} \times 20 \times 20 = 200\text{ m}

(25s).

Sanity & Limit Check: Verify units/signs against factor_of_two_or_stoichiometry_trap (Calculating triangle area under v-t graph as v*t instead of (1/2)*v*t, or using v² - u² = as instead of 2as) and sign_or_direction_flip (Adding areas above and below the time axis when asked for net displacement (or subtracting when asked for total distance)).

Examiner Distractor Blueprint for ARCH-P-04

FOIL #1factor_of_two_or_stoichiometry_trap

Calculating triangle area under v-t graph as v*t instead of (1/2)*v*t, or using v² - u² = as instead of 2as

Omitting the factor of 1/2 in s = (1/2)(u+v)t or 2 in v² = u² + 2as.

Open Factor-of-2 / Stoichiometry Clinic

FOIL #2sign_or_direction_flip

Adding areas above and below the time axis when asked for net displacement (or subtracting when asked for total distance)

Confusing scalar total distance with signed vector displacement on a v-t graph.

Open Sign / Direction Flip Clinic

FOIL #3subsystem_isolation_trap

Dividing final velocity by total time when acceleration is only active for part of the motion

Mixing constant-velocity cruise time with acceleration time.

Open Subsystem Isolation Trap Clinic

FOIL #4intermediate_stop_trap

Finding stopping time t instead of total stopping distance (thinking + braking)

Omitting the constant-speed thinking distance u*t_react.

Open Intermediate Stop Trap 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-04)

ARCH-P-04: 1D Multi-Stage Kinematics (v–t Graph Areas/Gradients) & Constant-Acceleration SUVAT (Sample)Physics

00:00.0

SUB-90 ZONE (<40S)

0.0s40s Sub-9090s ESAT Budget150s Classroom

Question 1 of 1ARCH-P-04 (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-04•Standard 5-Option

or press Enter to start