Higher June 2019 Paper 3 Q11
11 In May 2019, the distance between Earth and Mars was \(3.9 \times 10^7\) km.
In May 2019, a signal was sent from Earth to Mars.
Assuming that the signal sent from Earth to Mars travelled at a speed of \(3 \times 10^5\) km per second,
(a) how long did the signal take to get to Mars? (2)
The speed of the signal sent from Earth to Mars in May 2019 was actually less than \(3 \times 10^5\) km per second.
(b) How will this affect your answer to part (a)? (1)
| Answer | Mark | Mark scheme |
|---|---|---|
| 130 | P1 | for process to divide eg \((3.9 \times 10^7) \div (3 \times 10^5)\) |
| A1 | cao |
Additional guidance
Condone missing brackets
Accept \(1.3 \times 10^2\)
| Answer | Mark | Mark scheme |
|---|---|---|
| Explanation | C1 | Explanation referring to the time Acceptable examples The time will be more It will take longer The answer will be bigger Not acceptable examples The answer will be wrong The answer will be different |