Question 1

When searching and sorting data stored on a computer, comparisons can be made using character strings.

Accepted Answer

Character strings can be compared using lexicographical order, which is based on the alphabetical order of their component characters, allowing for effective searching and sorting of data stored on a computer.

Question 2

Alice has math comparison functions that can be found on world's functions tab, along with the AND, OR, and NOT functions.

Accepted Answer

Alice has math comparison functions that can be found on world's functions tab, along with the AND, OR, and NOT functions.

Question 3

Alice has a world-level function that will return a random number in a specified range.

Accepted Answer

Alice can use built-in functions like Python's `random.randint(a, b)` to generate a random number within a specified range.

Question 4

In Alice, clicking the ADD OBJECTS button allows you to enter Scene Editor mode.

Accepted Answer

In Alice, clicking the ADD OBJECTS button does indeed allow you to enter Scene Editor mode, where you can add and manipulate objects in your scene.

Question 5

When testing an Alice world, the speed slider control, in the playing world window, can be used to speed things up a bit.

Accepted Answer

The speed slider control in the Alice programming environment allows users to adjust the speed at which an animation or simulation runs, enabling them to speed up or slow down the execution for testing or demonstration purposes.

Question 6

The AND and OR operations are ____ operations, meaning that they need two operands.
A) dual
B) binary
C) complimentary
D) unary

Accepted Answer

The AND and OR operations are binary operations because they require two operands to perform their function.

Question 7

The conditions that exist in branching and looping routines are a form of ____.
A) first-order logic
B) informal logic
C) Boolean logic
D) modal logic

Accepted Answer

The conditions in branching and looping routines are based on Boolean logic, which involves true/false (or yes/no) conditions to control the flow of the program.

Question 8

In the book An Investigation into the Laws of Thought, on Which are Founded the Mathematical Theories of Logic and Probabilities, George Boole outlined a system of logic now known as ____.
A) first-order logic
B) modal logic
C) Boolean logic
D) informal logic

Accepted Answer

George Boole outlined a system of logic known as Boolean logic in his book "An Investigation into the Laws of Thought, on Which are Founded the Mathematical Theories of Logic and Probabilities." This system forms the basis of the algebra that is used in computer arithmetic and digital logic.

Question 9

In the book An Investigation into the Laws of Thought, on Which are Founded the Mathematical Theories of Logic and Probabilities, George Boole outlined a system of logic and a corresponding algebraic language dealing with true and false values. Today, that language is known as ____.
A) Boolean algebra
B) Sigma algebra
C) F-algebra
D) relational algebra

Accepted Answer

Boolean algebra is named after George Boole, who introduced it in his book "An Investigation into the Laws of Thought, on Which are Founded the Mathematical Theories of Logic and Probabilities." This system of algebra deals with binary variables and logical operations, reflecting the true and false values Boole discussed.

Question 10

Which of the following Boolean expressions is correct?
A) false and false = true
B) false and true = true
C) true and true = true
D) true and false = true

Accepted Answer

In Boolean algebra, the AND operation (denoted as "and") results in true only if both operands are true. Therefore, "true and true = true" is the correct expression.

Question 11

Which of the following Boolean expressions is correct?
A) true or true = true
B) true or false = false
C) false or true = false
D) false or false = true

Accepted Answer

The correct Boolean expression is A) true or true = true, because in an OR operation, if either or both operands are true, the result is true.

Question 12

____ is the basis for all modern digital electronic technology.
A) ASCII
B) Encapsulation
C) Boolean logic
D) Recursion

Accepted Answer

Boolean logic is the foundation of digital electronics, as it underpins the operation of binary systems and digital circuits through the use of true/false (1/0) values.

Question 13

Which of the pseudocode statements below best expresses the following warning message? The passenger-side air bag may cause injury to children who are under the age of 12 or who weigh less than 48 pounds. They should not sit in the front passenger seat of this car.
A) IF (age > 12 OR weight < 48)THEN do not sit in the front passenger seat
B) IF (age < 12 OR weight < 48)THEN sit in the front passenger seat
C) IF (age <= 12 OR weight <= 48)THEN sit in the front passenger seat
D) IF (age < 12 OR weight < 48)THEN do not sit in the front passenger seat

Accepted Answer

The correct statement is D because it accurately reflects the conditions under which a child should not sit in the front passenger seat, based on age being less than 12 or weight being less than 48 pounds.

Question 14

The ____ operation is a unary operation.
A) AND
B) ADD
C) NOT
D) OR

Accepted Answer

The NOT operation is a unary operation because it operates on a single operand to invert its value. Unary operations require only one operand. In contrast, AND, ADD, and OR are binary operations, requiring two operands.

Question 15

The symbol "____" in stands for "is less than." A) < B) <= C) > D) >=

Accepted Answer

The symbol "<" is used to denote "is less than."

Question 16

____ are used to compare two values in Boolean logic.
A) Inverse functions
B) Identity functions
C) Logical comparison operators
D) Proximity functions

Accepted Answer

Logical comparison operators are specifically designed to compare two values in Boolean logic, determining their relationship (e.g., equal to, greater than, less than) and returning a Boolean value (true or false) based on the comparison.

Question 17

The term ____ means to put a set of items in order.
A) counterbalance
B) collate
C) offset
D) adjust

Accepted Answer

Collate means to collect, arrange, and assemble in a specific order, often used in the context of documents or data.

Question 18

A ____ is a list that shows the correct order to be used when collating a set of items.
A) finite sequence
B) series
C) Fibonacci sequence
D) collating sequence

Accepted Answer

A collating sequence is specifically designed to define the correct order for sorting or arranging a set of items, making it the correct term in this context.

Question 19

In Boolean algebra, the symbol ____ stands for less than. A) > B) >= C) < D) <=

Accepted Answer

In Boolean algebra, the symbol "<" stands for less than.

Question 20

In Boolean algebra, the symbol ____ stands for greater than or equal to. A) > B) >= C) < D) <=

Accepted Answer

In Boolean algebra and programming languages, the symbol ">=" stands for greater than or equal to.

Quiz 5: Boolean Logic in Programming

When searching and sorting data stored on a computer, comparisons can be made using character strings.

Alice has math comparison functions that can be found on world's functions tab, along with the AND, OR, and NOT functions.

Alice has a world-level function that will return a random number in a specified range.

In Alice, clicking the ADD OBJECTS button allows you to enter Scene Editor mode.

When testing an Alice world, the speed slider control, in the playing world window, can be used to speed things up a bit.

The AND and OR operations are ____ operations, meaning that they need two operands.

The conditions that exist in branching and looping routines are a form of ____.

In the book An Investigation into the Laws of Thought, on Which are Founded the Mathematical Theories of Logic and Probabilities, George Boole outlined a system of logic now known as ____.

In the book An Investigation into the Laws of Thought, on Which are Founded the Mathematical Theories of Logic and Probabilities, George Boole outlined a system of logic and a corresponding algebraic language dealing with true and false values. Today, that language is known as ____.

Which of the following Boolean expressions is correct?

Which of the following Boolean expressions is correct?

____ is the basis for all modern digital electronic technology.

Which of the pseudocode statements below best expresses the following warning message? The passenger-side air bag may cause injury to children who are under the age of 12 or who weigh less than 48 pounds. They should not sit in the front passenger seat of this car.

The ____ operation is a unary operation.

The symbol "____" in stands for "is less than."

____ are used to compare two values in Boolean logic.

The term ____ means to put a set of items in order.

A ____ is a list that shows the correct order to be used when collating a set of items.

In Boolean algebra, the symbol ____ stands for less than.

In Boolean algebra, the symbol ____ stands for greater than or equal to.