Several scientific orbiters currently circle the planet Mars. Table 1 lists orbital data for three of these spacecraft.
| Orbiter | Use | Height above Mars's surface (km) | Speed (km/s) | Period (minutes) | Revolutions per day (24 hours) |
|---|---|---|---|---|---|
| Mars Odyssey | mapping | 400 | 3.39 | 117.1 | 12.3 |
| MRO | imaging | 300 | 3.44 | 112.3 | 12.8 |
| MAVEN | atmospheric study | 620 | 3.25 |
Calculate the period of the MAVEN orbiter in minutes.
[radius of Mars=3390 km][\text{radius of Mars} = 3390 \text{ km}][radius of Mars=3390 km]
Calculate the number of revolutions per day (24 hours) for the MAVEN orbiter.
23 exam-style questions on Edexcel IGCSE Physics Motion in the universe. Each one has a worked solution and a mark scheme showing where the marks go.