Intro to Python Project Stem Unit 4 Vocab Test

A loop controlled by values entered by a user. When used, you do not know how many times the loop will run.

• While loop

• User Input loop

• Count Variable loop

• Count Variable loop

Answer explanation

A while loop continues to execute as long as a specified condition is true. Since the number of iterations is determined by user input, it is the correct choice for a loop where the number of runs is unknown.

Definition: The process of reading through code to find errors and predict results.

• Parameter

• Function

• Variable

• Tracing Code

Answer explanation

Tracing Code is the process of reading through code to identify errors and predict outcomes, making it the correct choice. Other options like Parameter, Function, and Variable do not describe this specific process.

An experiment that is run using computer models.

• Scenarios

• Initialization

• Simulation

• Validation

Answer explanation

A simulation is an experiment conducted using computer models to replicate real-world processes. It allows for testing scenarios and understanding outcomes without physical trials, making it the correct choice.

Definition: Information sent to a function.

• Parameter

• Function

• Variable

• Algorithm

Answer explanation

A parameter is the information sent to a function, allowing it to operate with specific values. The other options do not fit this definition: a function is a block of code, a variable stores data, and an algorithm is a set of instructions.

Definition: A loop controlled by a fixed value. When used, you know how many times the loop will run.

• For loop

• User Input loop

• Count Variable loop

• User Input loop

Answer explanation

A 'for loop' is designed to run a specific number of times, controlled by a fixed value. This makes it ideal for situations where the number of iterations is known in advance, unlike user input loops which depend on user interaction.

Definition: A command that loops until a condition, set in the loop, is false.

• Range Function

• Function

• User Input Loop

• While Loop

Answer explanation

A While Loop continues to execute as long as a specified condition is true. This matches the definition provided, making 'While Loop' the correct choice, unlike the other options which do not describe this looping behavior.

Definition: A collection of commands that are given a name.

• Parameter

• Modeling

• Loop

• Function

Answer explanation

A function is a collection of commands that are grouped together and given a name, allowing for code reuse and organization. The other options do not fit this definition.

Definition: A variable used to add up a set of numbers.

• Count Variable

• Range Function

• Running Sum

• Sum Variable

Answer explanation

The correct answer is 'Sum Variable' as it specifically refers to a variable used to add up a set of numbers, aligning perfectly with the provided definition.

Definition: A variable used to count how many times a loop runs.

• Parameter

• Count Variable

• Initialization

• Sum Variable

Answer explanation

A 'Count Variable' is specifically designed to track the number of iterations in a loop, making it the correct choice. Other options like 'Parameter' and 'Sum Variable' do not serve this counting purpose.

Definition: A variable used to stop a loop from repeating.

• Sum Variable

• While Loop

• Loop Control Variable

• Parameter

Answer explanation

A Loop Control Variable is specifically designed to manage the execution of loops, determining when to stop them. It directly relates to the definition provided, making it the correct choice.