Physics IX · 2024 · Official answer key
| Question | Original SLO | Answer | Level |
|---|---|---|---|
| 1 | 1.7.3 | B | U |
| 2 | 1.5.1 | DSource key notePrinted key PDF shows "0" due to a source OCR scan typo; verified mathematical answer is D (5.09 × 10⁻⁵). | U |
| 3 | 1.4.1 | C | A |
| 4 | 1.3.1 | B | U |
| 5 | 2.8.2 | A | A |
| 6 | 2.7.2 | A | U |
| 7 | 2.9.2 | C | A |
| 8 | 2.8.2 | A | U |
| 9 | 2.9.2 | A | A |
| 10 | 3.2.3 | B | A |
| 11 | 3.4.1 | BSource key noteOfficial key: B (Unaffected / Less). Physically, for a constant propelling force, increasing friction reduces speed (A) while decreasing friction increases speed (C). | U |
| 12 | 3.3.5 | A | U |
| 13 | 3.2.8 | C | U |
| 14 | 3.3.4 | C | A |
| 15 | 4.2.2 | A | U |
| 16 | 4.5.3 | C | K |
| 17 | 4.2.2 | A | A |
| 18 | 4.5.5 | B | A |
| 19 | 5.3.1 | B | U |
| 20 | 5.1.5 | DSource key notePrinted key PDF shows "0" due to a source OCR scan typo; verified Newton gravitation answer is D (2.668 × 10⁻⁸ N). | U |
| 21 | 5.1.4 | DSource key notePrinted key PDF shows "0" due to a source OCR scan typo; verified direction of gravitational weight is D (downward). | U |
| 22 | 5.5.4 | A | K |
| 23 | 6.2.3 | C | A |
| 24 | 6.1.2 | DSource key notePrinted key PDF shows "0" due to a source OCR scan typo; verified work done (W = Fd = 100 × 500) is D (50000 J). | A |
| 25 | 6.4.6 | CSource key notePrinted key PDF shows "•" (missing glyph); the diagram depicts solar, wind, and biomass, so the absent renewable source is C (hydel). | U |
| 26 | 6.6.2 | A | A |
| 27 | 6.1.1 | C | U |
| 28 | 7.1.1 | B | U |
| 29 | 7.5.6 | B | U |
| 30 | 7.6.1 | B | U |
| 31 | 7.4.3 | DSource key notePrinted key PDF shows "0" due to a source OCR scan typo; verified atmospheric pressure comparison is D (High at sea level, Low on the mountain). | U |
| 32 | 7.8.1 | C | K |
| 33 | 8.2.2 | A | A |
| 34 | 8.4.1 | B | K |
| 35 | 8.2.2 | DSource key notePrinted key PDF shows "0" due to a source OCR scan typo; verified Kelvin temperature (20 + 273) is D (293 K). | A |
| 36 | 8.7.1 | DSource key notePrinted key PDF shows "0" due to a source OCR scan typo; verified thermal expansion explanation is D (metal expands more and glass expands less). | U |
| 37 | 9.1.2 | B | U |
| 38 | 9.4.1 | C | U |
| 39 | 9.1.6 | B | K |
| 40 | 9.3.2 | B | K |
K: Knowledge · U: Understanding · A: Application and beyond
2024 Paper 1 · answers & explanations →