O-LevelPhysicsKinematics5054/21 · May/June 2023 · Q117 Marks
Table 11.1 shows details about eight planets in the solar system, their average distance from the Sun, their orbital period and their average surface temperature. [Table 11.1]
- (a)Complete Table 11.1 by adding the names of the three planets that are not given.[2]
- (b)Calculate the orbital speed of Mars as it travels around the Sun.[2]
- (c)Describe the relationship between the distance of a planet from the Sun and its orbital period.[1]
- (d)Describe the relationship between the distance from the Sun and the average surface temperature of a planet. In your description, include any anomalies.[2]
Mark scheme
Marking points from the official mark scheme (May/June 2023). The mark or mark type is shown in brackets.
- [C1] Mercury, Jupiter and Uranus
- [A1] any two correct names in correct positions
- [A1] all three correct in correct positions
- [C1] (speed =) distance / time numerical or algebraic or 2 πR or πD seen
- [A1] 24 (km/s)
- [B1] further from the Sun the larger the period
- [B1] further from the Sun the cooler the planet
- [B1] except for Venus hotter (than Mercury) / has greenhouse effect OR except for Mercury cooler than expected
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