SSS3 Maths QUIZ 19.7 - VECTORS

A vector quantity has both:

A) Size only

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B) Magnitude and direction

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C) Area and length

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D) Mass and speed

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The vector \( \begin{pmatrix} 4 \\ -3 \end{pmatrix} \) represents movement:

A) 4 units up, 3 units left

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B) 4 units down, 3 units right

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C) 4 units right, 3 units down

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D) 3 units up, 4 units left

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The magnitude of vector \( \begin{pmatrix} 3 \\ 4 \end{pmatrix} \) is:

A) 5

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B) 5 units

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C) 7

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D) 6

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The sum of vectors \( \begin{pmatrix} 1 \\ 2 \end{pmatrix} + \begin{pmatrix} 3 \\ 4 \end{pmatrix} \) is:

A) \( \begin{pmatrix} 2 \\ 6 \end{pmatrix} \)

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B) \( \begin{pmatrix} 4 \\ 6 \end{pmatrix} \)

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C) \( \begin{pmatrix} 4 \\ 8 \end{pmatrix} \)

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D) \( \begin{pmatrix} 6 \\ 6 \end{pmatrix} \)

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Multiplying vector \( \begin{pmatrix} 2 \\ 3 \end{pmatrix} \) by 2 gives:

A) \( \begin{pmatrix} 4 \\ 3 \end{pmatrix} \)

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B) \( \begin{pmatrix} 2 \\ 6 \end{pmatrix} \)

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C) \( \begin{pmatrix} 4 \\ 6 \end{pmatrix} \)

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D) \( \begin{pmatrix} 1 \\ 1.5 \end{pmatrix} \)

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Vectors are equal if they have the same:

A) Position

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B) Length only

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C) Magnitude and direction

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D) Color

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A vector that represents no movement is called the:

A) Unit vector

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B) Zero vector

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C) Equal vector

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D) Negative vector

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If vector \( \mathbf{a} = \begin{pmatrix} 5 \\ -2 \end{pmatrix} \), its negative is:

A) \( \begin{pmatrix} 2 \\ -5 \end{pmatrix} \)

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B) \( \begin{pmatrix} -5 \\ 2 \end{pmatrix} \)

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C) \( \begin{pmatrix} -2 \\ 5 \end{pmatrix} \)

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D) \( \begin{pmatrix} 5 \\ 2 \end{pmatrix} \)

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The midpoint of points A(2, 4) and B(6, 8) is:

A) (5, 7)

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B) (4, 6)

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C) (8, 12)

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D) (3, 5)

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The unit vector in the direction of \( \begin{pmatrix} 3 \\ 4 \end{pmatrix} \) is:

A) \( \begin{pmatrix} \dfrac{3}{5} \\ \dfrac{4}{5} \end{pmatrix} \)

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B) \( \begin{pmatrix} \dfrac{4}{5} \\ \dfrac{3}{5} \end{pmatrix} \)

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C) \( \begin{pmatrix} 3 \\ 4 \end{pmatrix} \)

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D) \( \begin{pmatrix} \dfrac{3}{7} \\ \dfrac{4}{7} \end{pmatrix} \)

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SSS3 Maths QUIZ 19.7 – VECTORS

SSS3 Maths QUIZ 19.7 – VECTORS

Noah Wasiu July 16, 2025

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