Matrices Quiz for Grade 1

What is a matrix?

• A type of exercise equipment

• A type of dessert made with milk and gelatin

• A type of fabric used for clothing

• A rectangular array of numbers, symbols, or expressions, arranged in rows and columns.

How many rows and columns does a matrix have?

• It only has rows

• It only has columns

• It has neither rows nor columns

• It has both rows and columns.

Can a matrix have different numbers of rows and columns?

• Only on Tuesdays

• Yes

• Maybe

• No

What is the element in the first row and second column of a matrix called?

• (1,1) element

• (2,1) element

• (3,2) element

• (1,2) element

What is the result of adding two matrices together?

• Subtraction of corresponding elements

• Multiplication of corresponding elements

• Sum of corresponding elements

• Division of corresponding elements

What is the result of subtracting one matrix from another?

• The result of subtracting one matrix from another is a new matrix with the corresponding elements subtracted from each other

• The result is a complex number

• The result is a vector

• The result is a scalar

What is the product of a matrix and a scalar?

• Vector multiplication

• Scalar multiplication

• Matrix division

• Scalar addition

What is the identity matrix?

• A matrix with 0s on the main diagonal and 1s elsewhere

• A matrix with all elements equal to 1

• A matrix with all elements equal to 0

• A matrix with 1s on the main diagonal and 0s elsewhere

Can you multiply any two matrices together?

• Yes

• Only if they are both square matrices

• Only if they have the same number of rows and columns

• No

What is the transpose of a matrix?

• The transpose of a matrix is obtained by multiplying its rows with its columns.

• The transpose of a matrix is obtained by swapping its rows with its columns.

• The transpose of a matrix is obtained by adding its rows to its columns.

• The transpose of a matrix is obtained by dividing its rows by its columns.