Physics 5054 · O Level · Physical quantities and measurement techniques

Physical quantities and measurement techniques — practice question

Which of the following statements is correct?

  • AThe orbital speed of the Earth around the Sun is: $\dfrac{2\pi \times \text{average diameter of the orbit}}{\text{orbital period}}$.
  • BThe orbit of the Earth around the Sun is an ellipse.
  • CThe Moon takes approximately one month to orbit the Sun.
  • DLight from the Sun takes $5.0\,\text{minutes}$ to reach the Earth.

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