plumiSI units: CAIE A‑Level Physics questions
Every CAIE A-Level Physics exam question on 1.2 SI units, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
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Q1(a)
The whole paper ↗![June 2024 Paper 2, question 1(a): Use SI base units to show that the drag coefficient has no units. [3]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/970221-jun24-01-a-qp.webp)
All 7 questions on SI units, as a list
- June 2024, Paper 1, Q1 (1 mark): Which unit is an SI base unit? A ampere B coulomb C degree Celsius D gram
- June 2024, Paper 1, Q2 (1 mark): Which of the following could have the same units as force? energy A distance energy B time C momentum distance D momentum time
- June 2024, Paper 1, Q8 (1 mark): An aircraft flies from London to Sydney in a time of 21 hours 40 minutes. The distance travelled is 17 000 km. What is the average speed of the aircraft? A 2.2
- June 2024, Paper 1, Q25 (1 mark): An electromagnetic wave is travelling through a vacuum. What could be the wavelength and period of the electromagnetic wave? wavelength period A 1.2 10–10 Tm
- June 2024, Paper 2, Q1(a) (3 marks): Use SI base units to show that the drag coefficient has no units. [3]
- Specimen, Paper 1, Q2 (1 mark): Which expression has the same SI base units as pressure? force A length # speed force B length # time mass C 2 length # (time) (time)2 mass # D length
- Specimen, Paper 1, Q3 (1 mark): The speed v of a liquid leaving a tube depends on the change in pressure 'P and the density ρ of the liquid. The speed is given by the equation J N n KK D P OO
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