A trophy is currently stable. Which changes to its base and its centre of gravity would definitely make the trophy less stable?
narrower base and higher centre of gravity
narrower base and lower centre of gravity
wider base and higher centre of gravity
wider base and lower centre of gravity
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.