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The Solar System — Free MYP2 Sciences Practice Questions
1QuestionAsteroids Comets and MeteoroidsConcept Practice
2 marks~3 minCriterion A
The diagram shows three objects in space.
Word bank: asteroid, comet, meteoroid
Identify each object by writing the correct term next to its label. [1]
Explain one feature visible in the diagram that tells you Object B is a comet. [1]
Object A (large rocky body): \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Object B (icy body with a bright tail): \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Object C (small rocky body): \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Explanation: \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Word bank: asteroid, comet, meteoroid
Identify each object by writing the correct term next to its label. [1]
Explain one feature visible in the diagram that tells you Object B is a comet. [1]
Object A (large rocky body): \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Object B (icy body with a bright tail): \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Object C (small rocky body): \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Explanation: \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Solutions
2QuestionMovements of Planets Around the SunAssessment Practice
6 marks~9 minCriterion C
The graph below shows the average distance from the Sun (in AU) and the orbital period (in years) for eight planets.
a
Describe the shape of the curve and the trend it shows between distance and orbital period. [2]
b
Estimate the orbital period of a hypothetical planet at 4.0 AU. Describe the two steps you used to read the graph. [2]
c
A hypothetical planet orbits at 0.5 AU. Compare the two options below and explain which is the better estimate for its orbital period: 0.3 years or 0.6 years. [2]
Solutions
3QuestionMovements of Planets Around the SunConcept Practice
3 marks~5 minCriterion B
The bar chart shows the average orbital speed of the first four planets from the Sun.
| Planet | Mercury | Venus | Earth | Mars |
|---|---|---|---|---|
| Orbital speed (km/s) | 47.9 | 35.0 | 29.8 | 24.1 |
a
Identify the relationship between a planet's distance from the Sun and its orbital speed. [1]
b
Explain why the Sun's gravitational pull (the force of attraction between the Sun and a planet) changes with distance. [1]
c
Using your answer to (b), explain why planets closer to the Sun must travel faster to maintain a stable orbit. [1]
Solutions
4QuestionAsteroids Comets and MeteoroidsAssessment Practice
6 marks~9 minCriterion D
A space company plans to send a spacecraft to a near-Earth asteroid (a rocky body orbiting close to Earth) to collect water from its ice. This water would be converted into rocket fuel in space, reducing the need to launch fuel from Earth.
a
Identify one advantage of producing rocket fuel from asteroid water rather than launching it from Earth. [1]
b
Explain one challenge the company would face when trying to collect and process water on an asteroid. [2]
c
Compare the advantages and challenges of this plan and state whether you think asteroid water mining is a viable (workable) idea. [3]
Solutions
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