| Exam Board | Edexcel |
|---|---|
| Module | M1 (Mechanics 1) |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Forces, equilibrium and resultants |
| Type | Resultant of coplanar forces |
| Difficulty | Easy -1.8 This is a pure recall question requiring only definitions of standard modelling assumptions. No calculation, problem-solving, or application is needed—students simply need to remember four basic terms from the M1 specification. This is significantly easier than typical A-level questions that require multi-step working. |
| Spec | 6.01a Dimensions: M, L, T notation6.01b Units vs dimensions: relationship |
| Answer | Marks |
|---|---|
| (i) 2-D rigid body | B1 B1 |
| (ii) 1-D rigid body, centre of mass at mid-point | B1 B1 |
| (iii) No frictional force | B1 B1 |
| (iv) Mass concentrated at a point | B1 B1 |
| Total: 4 marks |
(i) 2-D rigid body | B1 B1 |
(ii) 1-D rigid body, centre of mass at mid-point | B1 B1 |
(iii) No frictional force | B1 B1 |
(iv) Mass concentrated at a point | B1 B1 |
| | **Total: 4 marks**Briefly define the following terms used in modelling in Mechanics:
\begin{enumerate}[label=(\roman*)]
\item lamina,
\item uniform rod,
\item smooth surface,
\item particle.
\end{enumerate}
[4 marks]
\hfill \mbox{\textit{Edexcel M1 Q1 [4]}}