AP Computer Science Principles Algorithms

What is an algorithm?

• A mathematical equation

• A step-by-step procedure or a set of rules for solving a specific problem or accomplishing a specific task.

• A computer program

• A random guess

Why are algorithms important in computer science?

• Algorithms are only important in theoretical computer science, not practical applications.

• Algorithms are only used in specific programming languages, not in computer science as a whole.

• Algorithms are not important in computer science because computers can solve problems without them.

• Algorithms provide step-by-step instructions for solving problems efficiently and effectively.

What are the steps involved in designing an algorithm?

• Identify inputs and outputs, choose an approach, design the algorithm, test and refine, implement, test and validate

• Understand the problem, break it down, identify inputs and outputs, choose an approach, test and refine, implement, validate

• Understand the problem, identify inputs and outputs, choose an approach, test and refine, implement, test and validate

• Understand the problem, break it down, identify inputs and outputs, choose an approach, design the algorithm, test and refine, implement, test and validate

What is the purpose of the python turtle module?

• To create graphics and animations

• To manipulate strings and text.

• To interact with databases.

• To perform mathematical calculations.

How do you import the python turtle module?

• import turtle

• import turtle_module

• import turtle as t

• from turtle import *

What are some basic turtle commands in python?

• move(), turn(), pen(), speed(), color(), shape(), up(), down()

• go(), rotate(), draw(), fast(), change_color(), change_shape(), start(), stop()

• advance(), rotate(), draw(), fast(), change_color(), change_shape(), up(), down()

• forward(), backward(), right(), left(), penup(), pendown(), speed(), color(), and shape()

How do you create a turtle object in python?

• turtle_object = turtle.new_turtle()

• import turtle turtle_object = turtle.Turtle()

• turtle_object = turtle.create_turtle()

• import turtle my_turtle = turtle.Turtle()

What is the purpose of the forward() function in the turtle module?

• To rotate the turtle clockwise.

• To move the turtle forward

• To draw a circle with the turtle as the center.

• To change the color of the turtle's pen.

How do you change the color of the turtle's pen in python?

• colorpen()

• change_pen_color()

• set_pen_color()

• pencolor()

What is the purpose of the circle() function in the turtle module?

• To draw a square with a specified side length.

• To draw a circle with a specified radius.

• To draw a line with a specified length.

• To draw a triangle with a specified base and height.