Welcome to your Grade 9 Mathematics chapter 7
After carefully reading the following 30 questions, choose the correct answer.
1.
Quantities that are fully described by a magnitude alone are called:
2.
A vector is represented geometrically by a:
3.
Two vectors are said to be equal if and only if they have the same:
4.
Vectors that have the same or opposite direction are called:
5.
The Triangle law of vector addition states that for vectors AB and BC:
6.
A vector that has no magnitude and no direction is called a:
7.
According to the Parallelogram Law, the sum of two co-initial side vectors is represented by the:
8.
If a vector u is multiplied by a scalar k where k<0, the resulting vector ku is in the:
9.
A vector that starts from the origin O is called a:
10.
The magnitude of a position vector u=(xy) is calculated as:
11.
If a scalar k satisfies $0 <
12.
What are the components of the unit vector i in the direction of the x-axis?
13.
Given initial point (x1,y1) and terminal point (x2,y2), the position vector components are:
14.
The vector denoted by −AB has the same magnitude as AB but:
15.
Which of the following is a vector quantity?
16.
If a=(13) and b=(2−1), find a+b.
17.
On a plane, the direction of a vector is often given by the angle it makes with:
18.
For any vector u, 1u is equal to:
19.
If u is a position vector (xy), x and y are called:
20.
In the vector notation AB, point A is called the:
21.
Find the magnitude of vector v=(34).
22.
If a=(13) and b=(2−1), find a−b.
23.
Multiplying a vector u by scalar k>1 results in:
24.
What is the sum of a vector and its opposite, u+(−u)?
25.
Two parallel vectors u and v must have the same:
26.
If P=(x2−x1,y2−y1), it represents the position vector of a segment from:
27.
The magnitude of a vector is always a:
28.
In the diagram of triangle law, AC is called the:
29.
Which vector has components (01)?
30.
If u=(−34), what is $
