The Solar System, Gravity & Orbits — Drills · Grade 6 Science
Chapter: Earth, Moon, Sun & Space ModelsWhat these drills covers
By the end of The Solar System, Gravity & Orbits you should be able to:
- I can state what the strength of gravity between two objects depends on.
- I can explain why an orbiting satellite does not fall to Earth even though gravity acts on it.
- I can explain why the outer planets take so much longer to orbit the Sun.
4 questions, multiple choice and written answer, each with a worked explanation.
Vocabulary used: orbit, star, evidence, system boundary, uncertainty.
Problem 1
- A sample with missing measurements has proved those values are zero.
- Gravity stops at the top of the atmosphere.
- A bright reflected object must be a star.
- orbit: A curved path arising from motion and gravitational interaction around a system.
Answer and explanation
orbit: A curved path arising from motion and gravitational interaction around a system.
A curved path arising from motion and gravitational interaction around a system.
Problem 2
- star: A body that emits light through its internal energy processes, such as the Sun.
- A bright reflected object must be a star.
- Gravity stops at the top of the atmosphere.
- Repeating any method makes every causal claim true.
Answer and explanation
star: A body that emits light through its internal energy processes, such as the Sun.
A body that emits light through its internal energy processes, such as the Sun.
Problem 3
Answer and explanation
Gravity supplies the changing direction in the basic orbit model; the statement removes the mechanism it needs.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.
Problem 4
Answer and explanation
Only if its scale and geometry support that purpose. Otherwise use a labeled distance record.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.