Edexcel Gcse Mathematics (Linear) 1ma0 - Standard Form Page 7
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812.
Write the following numbers in order of size.
Start with the smallest number.
–4
–1
2
0.038 × 10
3800 × 10
380
0.38 × 10
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(2 marks)
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13.
The time taken for light to reach Earth from the edge of the known universe is 14 000 000 000 years.
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Light travels at the speed of 9.46 × 10
km/year.
Work out the distance, in kilometres, from the edge of the known universe to Earth.
Give your answer in standard form.
……………………………… km
(3 marks)
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14.
The surface area of Earth is 510 072 000 km
.
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The surface area of Jupiter is 6.21795 × 1010 km
.
The surface area of Jupiter is greater than the surface area of Earth.
How many times greater?
Give your answer in standard form.
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(3 marks)
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