If you know the speed of light and the distance to the Moon then this question will be easy!
If you were to switch on a strong light on the Moon facing the Earth how long would that light take to reach the surface of our planet?
Just over one second / Just over 15 seconds / Just over one minute
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Answer to question 7 / Just over one second.
The speed of light is almost 300,000 kilometres per second and our natural satellite the Moon is 384,000 kilometres from the Earth.

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Questions About Space
Non-FictionQuestions with multiple answers about space and our world. Choose one and scroll down to see the detailed answer. Good luck.