A driver is planning a road trip and decides to mount a heavy cargo box onto the roof rack of their SUV instead of placing it inside the lower trunk. How does placing the heavy cargo on the roof rack affect the stability of the SUV?
It makes the SUV less stable by raising its centre of mass.
It makes the SUV more stable by lowering its centre of mass.
It makes the SUV more stable by increasing the downward force on the roof.
It has no effect on the SUV's stability since the total mass changes by the same amount.
19 exam-style questions on CIE IGCSE Physics 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.