Целевая практика перед full tests, чтобы coverage было понятным.
An object travels 200 m in 10 s. Find average speed.
A 7 kg mass accelerates at 2 m/s². Find resultant force.
Structure a solution for “Solar system models”: givens, SI units, law, substitution, and interpretation.
Identify three uncertainty sources in measuring “The universe introduction” and improve each one.
Plan a suitable graph for “Redshift introduction where appropriate” data and explain how to obtain a gradient or relationship.
Check whether a result for “Gravity and orbits” is sensible using units, order of magnitude, and a limiting case.
Connect “Stars and galaxies” to energy conservation or a force/field model and justify the choice.
Write a multi-step exam response about “Solar system models” with calculation and evaluation.