What needs to be known to calculate the moment of a force about a pivot?
Where ✓ \checkmark\,✓ represents "needed" and × \times\,× represents "not needed".
Size of force: ✓\checkmark✓ | Perpendicular distance: ✓\checkmark✓ | Mass of object: ✓\checkmark✓
Size of force: ✓\checkmark✓ | Perpendicular distance: ✓\checkmark✓ | Mass of object: ×\times×
Size of force: ✓\checkmark✓ | Perpendicular distance: ×\times× | Mass of object: ✓\checkmark✓
Size of force: ✓\checkmark✓ | Perpendicular distance: ×\times× | Mass of object: ×\times×
43 exam-style questions on CIE IGCSE Physics 1.5.2a Moment of a force. Each one has a worked solution and a mark scheme showing where the marks go.