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1.1 Units and quantities

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Question 16
F

A laboratory uses 0.45 MJ0.45\ \mathrm{MJ}0.45 MJ of energy before lunch and 280 kJ after lunch. What is the total energy used, in joules?

[1]
A

7.3×106 J7.3\times10^6\ \mathrm{J}7.3×106 J

B

7.3×105 J7.3\times10^5\ \mathrm{J}7.3×105 J

C

7.3×102 J7.3\times10^2\ \mathrm{J}7.3×102 J

D

7.3×103 J7.3\times10^3\ \mathrm{J}7.3×103 J

Markscheme

1.1 Units and quantities Questions

  1. GCSE
  2. /Physics
  3. /1.1 Units and quantities

39 exam-style questions on Edexcel GCSE Physics 1.1 Units and quantities, covering 1.1.1 SI units for physical quantities and 1.1.2 Unit prefixes, conversions, significant figures and standard form. Each one has a worked solution and a mark scheme showing where the marks go.

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