WorksheetsU26 Q5 The Matrix!
Total questions: 14
Worksheet time: 14mins
Name
Class
Date
1.
What is a Matrix?
a)
An equation of over 5 numbers or symbols
b)
A set of numbers in rows and columns
c)
A method of finding the nth value of a series
d)
A complicated number system
2.
What, in relation to matrices, is a Scalar?
a)
A rate-of change-of measurement i.e.
"5m/s2"
"5m/s2"
b)
A scaly pet i.e.
"A Pygmy Alligator"
"A Pygmy Alligator"
c)
A single value i.e.
"80"
"80"
d)
Their is no such thing as a scalar i.e.
3.
Which of these descriptions is describing a Vector matrix?
a)
A matrix is a "vector" only when it has dimensions 1x1
b)
A matrix is a "vector" only when it has one dimension of value "1"
c)
A matrix is a "vector" only when it has dimensions of 2x2 or higher
d)
A matrix is a "vector" only when all its elements add up to 0
4.
This is the Greek letter "Lambda" (a lower case ⋀) what does this symbol stand for in Matrix mathematics?
a)
An unknown Scalar
b)
An unknown Matrix
c)
The act of multiplying 2 matrices together
d)
An unknown Vector
5.
Which of these is describing an Array?
a)
An un-ordered collection of elements
b)
A set of elements with different data types
c)
An ordered collection of mixed data types
d)
An ordered collect of one kind of data type
6.
This image is of a simple array. What is the address of the 3rd element in this array?
a)
[2]
b)
[5]
c)
[3]
d)
[0]
7.
Which of these names are for an array of arrays?
a)
A Higher Dimensional Array
b)
An Octal Array
c)
A 2nd level Array
d)
Array 2
8.
What is the right name for this matrix's dimension?
a)
A 4x2 dimension array
b)
A 2x4 dimension array
9.
In Matrix R (pictured) what is the value of element R3,2
a)
8
b)
9.01
c)
6
d)
1
10.
In this image, what kind of vector is "b"?
a)
A "Row Vector"
b)
A "Column Vector"
11.
What would two matrices need to be considered 'equal'?
a)
The same dimensions and different element values
b)
The same dimension and the same element values
c)
Two matrices can never be equal
d)
two matrices are 'equal' when they are added together to create a matrix of only "0's"
12.
How would a scalar multiplication be carried out for a matrix?
a)
Add the Scalar to every element in the matrix
b)
Dot product the rows of one matrix with the columns of the other matrix
c)
Multiply every element with the scalar to create a new matrix
d)
subtract the elements in the first matrix from the elements of the second matrix
13.
Solve this Matrix Addition
a)
11 8
-4 2
-4 2
b)
3 2
-6 -6
-6 -6
c)
-3 2
-4 -6
-4 -6
d)
10 8
-6 2
-6 2
14.
Solve this Matrix Subtraction
a)
3 -8
0 -1
0 -1
b)
3 -4
8 -13
8 -13
c)
-3 8
0 1
0 1
d)
3 -8
-8 1
-8 1
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