A radio transmitter on a space probe orbiting Venus sends a signal to Earth.
The table below shows the distance from the Sun to Venus and the distance from the Sun to Earth, when Venus and Earth are closest.
| Location | Distance from the Sun (m) |
|---|---|
| Venus | 1.08 × 1011 |
| Earth | 1.50 × 1011 |
The radio signal travels at 300 000 000 m/s300\,000\,000\text{ m/s}300000000 m/s.
Calculate the minimum time for the radio signal to travel from Venus to Earth. Use the data in the table and the equation: distance=speed×time\text{distance} = \text{speed} \times \text{time}distance=speed×time
Time=\text{Time} =Time= ......................... s\text{s}s
The average surface temperature on Earth is 15∘C15^\circ\text{C}15∘C.
Suggest whether the average temperature on Venus is higher or lower than 15∘C15^\circ\text{C}15∘C. Use the data in the table to explain your answer.
27 exam-style questions on OCR GCSE Physics Beyond Earth. Each one has a worked solution and a mark scheme showing where the marks go.