Question 1

Which category of primitive functions returns values indicating an object's distance or nearness to another object?
A) Point of view
B) Proximity
C) Size
D) Spatial relation
E) None of these

Accepted Answer

The category of primitive functions that returns values indicating an object's distance or nearness to another object is the Proximity. Therefore, the correct choice is B.

Question 2

Which of the following categories of variables are available in Alice?
A) Local variables
B) Parameter variables
C) Class-Level variables
D) World-Level variables
E) All of these

Accepted Answer

All of the listed categories of variables (local variables, parameter variables, class-level variables, and world-level variables) are available in Alice.

Question 3

Which of the following functions could be used to input the user's first name?
A) ask user for a number
B) ask user for a boolean
C) ask user for yes or no
D) ask user for a string
E) None of these

Accepted Answer

Asking the user for a string input would be the best choice for inputting the user's first name as it is a text input. Options A, B, and C are not appropriate for asking the user's first name as they are expecting numerical or boolean inputs, or limited to yes or no responses. Option E is also not a valid choice as the question requires a specific answer.

Question 4

Which of the following belongs to the world?
A) Local variable
B) Parameter variable
C) Class-Level variable
D) World-Level variable
E) None of these

Accepted Answer

The only option that belongs to the world is a world-level variable, also known as a global variable. This variable can be accessed and modified from any part of the program, making it a truly global entity. Local variables are limited to a specific function or code block and cannot be accessed outside of it. Parameter variables are used to pass values between functions but are also limited to their scope. Class-Level variables are specific to a class and can only be accessed by its methods and properties.

Question 5

A parameter variable belongs to a specific object.

Accepted Answer

A parameter variable is a variable used in the definition of a function or method, representing an argument that is passed to the function when it is called, and does not belong to any specific object.

Question 6

What is the name of the operation that joins two strings together?
A) String addition
B) String add
C) String concatenation
D) String together
E) None of these

Accepted Answer

The operation that joins two strings together is called string concatenation. Option A and B are not commonly used terms for this operation. Option D is not a recognized term for string operations. Option E is not the correct answer as a specific operation is being asked for.

Question 7

Which of the following belongs to a specific method?
A) Local variable
B) Parameter variable
C) Class-Level variable
D) World-Level variable
E) None of these

Accepted Answer

Local variables are specific to the method in which they are declared and cannot be accessed outside of that method.

Question 8

A class-level variable belongs to the world.

Accepted Answer

A class-level variable, also known as a class variable, belongs to the class itself, not to the world. It is shared among all instances of the class.

Question 9

Which of the following variable types should be used to store someone's age?
A) Number
B) Boolean
C) Object
D) String
E) None of these

Accepted Answer

Age is a numerical value and should be stored as a number variable type.

Question 10

Which of the following holds an argument that is passed to a method?
A) Local variable
B) Parameter variable
C) Class-Level variable
D) World-Level variable
E) None of these

Accepted Answer

A parameter variable is a variable that holds an argument passed to a method. It is declared in the method's signature and is used to receive data from the caller. Local variables are declared inside a method's body and are not meant to hold arguments passed to a method. Class-level and world-level variables are not relevant in this context.

Question 11

What is the name of the special Alice object that allows you to add text to a world?
A) 3D text
B) Super text
C) Big text
D) String text
E) None of these

Accepted Answer

The special Alice object that allows you to add text to a world is called 3D text.

Question 12

When a local variable is declared, which of the following can be set?
A) Variable name
B) Variable type
C) Initial value
D) All of the above
E) None of these

Accepted Answer

All of the above options can be set when declaring a local variable. The variable name identifies the variable and the variable type specifies the type of data it can hold. An initial value can also be assigned to the variable to give it an initial state or to avoid any potential bugs caused by using uninitialized variables.

Question 13

Before you can use a local variable in a method, you must create the variable.

Accepted Answer

When using a local variable in a method, you first need to declare and initialize the variable before you can use it.

Question 14

Which of the following functions will input a Boolean value from the user?
A) ask user for a number
B) ask user for a Boolean
C) ask user for yes or no
D) ask user for a string
E) None of these

Accepted Answer

The answer of Which of the following functions will input...

Question 15

Which category of primitive functions has a function that returns an object's height?
A) Point of view
B) Proximity
C) Size
D) Spatial relation
E) None of these

Accepted Answer

The category of primitive functions that has a function for returning an object's height is "Size". This is because height is a measure of the object's size.

Question 16

Which of the following variable types can hold a value of either true or false?
A) Number
B) Boolean
C) Object
D) String
E) None of these

Accepted Answer

Boolean variables are used to hold a value of either true or false.

Question 17

A parameter is a storage location that is represented by a name.

Accepted Answer

A parameter is a named variable passed into a function or procedure, not a storage location. Parameters represent data or references to data passed into functions or procedures to allow them to operate on that data.

Question 18

Which category of primitive functions has a function that could test whether an object is above another object?
A) Point of view
B) Proximity
C) Size
D) Spatial relation
E) None of these

Accepted Answer

The category of primitive functions that deals with testing whether one object is above another object is spatial relation. Thus, the correct choice is D.

Question 19

Given that the variable days has a value of 14, the following expression would evaluate to what value?
	days / 7 + 1
A) 1.75
B) 2
C) 3
D) 4
E) None of these

Accepted Answer

days / 7 would evaluate to 2, and if we add 1 to that, we would get 3. The answer is not fractional, so A) and B) can be eliminated. The value is also not greater than 3, so D) can be eliminated. Therefore, the correct answer is C) 3.

Question 20

Which of the following belongs to a specific object?
A) Local variable
B) Parameter variable
C) Class-Level variable
D) World-Level variable
E) None of these

Accepted Answer

Class-level variables are variables that belong to a specific class and can be accessed by all objects of that class. Local variables and parameter variables are specific to a method or function and are not associated with any object. World-level variables are not a programming concept.

Quiz 3: Variables, Functions, Math, and Strings

Which category of primitive functions returns values indicating an object's distance or nearness to another object?

Which of the following categories of variables are available in Alice?

Which of the following functions could be used to input the user's first name?

Which of the following belongs to the world?

A parameter variable belongs to a specific object.

What is the name of the operation that joins two strings together?

Which of the following belongs to a specific method?

A class-level variable belongs to the world.

Which of the following variable types should be used to store someone's age?

Which of the following holds an argument that is passed to a method?

What is the name of the special Alice object that allows you to add text to a world?

When a local variable is declared, which of the following can be set?

Before you can use a local variable in a method, you must create the variable.

Which of the following functions will input a Boolean value from the user?

Which category of primitive functions has a function that returns an object's height?

Which of the following variable types can hold a value of either true or false?

A parameter is a storage location that is represented by a name.

Which category of primitive functions has a function that could test whether an object is above another object?

Given that the variable days has a value of 14, the following expression would evaluate to what value? days / 7 + 1

Which of the following belongs to a specific object?