#1.10a
Be able to use vectors in two dimensions.
i.e. Learners should be able to use vectors expressed as \(x\bold{i} + y\bold{j}\) or as a column vector \(\begin{pmatrix} x \\ y \end{pmatrix}\), to use vector notation appropriately either as \(\overrightarrow{AB}\) or \(\bold{a}\).
Learners should know the difference between a scalar and a vector, and should distinguish between them carefully when writing by hand.
#1.10b
Be able to use vectors in three dimensions.
i.e. Learners should be able to use vectors expressed as \(x\bold{i} + y\bold{j} + z\bold{k}\) or as a column vector \(\begin{pmatrix} x \\ y \\ z \end{pmatrix}\).
Includes extending 1.10c to 1.10g to include vectors in three dimensions, excluding the direction of a vector in three dimensions.
#1.10c
Be able to calculate the magnitude and direction of a vector and convert between component form and magnitude/direction form.
Learners should know that the modulus of a vector is its magnitude and the direction of a vector is given by the angle the vector makes with a horizontal line parallel to the positive x-axis. The direction of a vector will be taken to be in the interval \([0°,360°).
Includes use of the notation \(|\bold{a}|\) for the magnitude of \(\bold{a}\) and \(|\overrightarrow{OA}|\) for the magnitude of \(\overrightarrow{OA}\).
Learners should be able to calculate the magnitude of a vector \(\begin{pmatrix} x \\ y \end{pmatrix}\) as \(\sqrt{x^2+y^2}\) and its direction by using \(\tan^{-1}{\Bigg(\dfrac{x}{y}\Bigg)}\).
#1.10d
Be able to add vectors diagrammatically and perform the algebraic operations of vector addition and multiplication by scalars, and understand their geometrical interpretations.
i.e. Either a scaling of a single vector or a displacement from one position to another by adding one or more vectors, often in the form of a triangle of vectors.
#1.10e
Understand and be able to use position vectors.
Learners should understand the meaning of displacement vector, component vector, resultant vector, parallel vector, equal vector and unit vector.
#1.10f
Be able to calculate the distance between two points represented by position vectors.
i.e. The distance between the points \(a\bold{i} + b\bold{j}\) and \(c\bold{i} + d\bold{j}\) is \(\sqrt{(c-a)^2 + (d-b)^2}\).
#1.10g
Be able to use vectors to solve problems in pure mathematics and in context, including forces.
#1.10h
Be able to use vectors to solve problems in kinematics.
e.g. The equations of uniform acceleration may be used in vector form to find an unknown. See section 3.02e.