2025 PHS PRELIMS P1 Q9

2025 PHS PRELIMS P1 Q9

Secondary 4
4 marks

The distance between Earth and Venus is 150.4 million kilometres.

  1. Express 150.4 million in standard form.[1]
  2. A space shuttle travels 7500 metres per second.
    1. Find its speed in kilometres per hour.[1]
    2. Find the number of days it takes to travel from Earth to Venus. Give your answer to the nearest whole number.[2]

Solution:

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Answer:(a) \(1.504\times10^8\text{ km}\) (b)(i) \(27\,000\text{ km/h}\) (ii) \(232\) days

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