Lesson 1

Which of the following activities describes the field of computer science?

• Designing fonts, images, and colors for a website

• Designing and using computational applications and systems

• Creating three-dimensional animations and movies using computers

• Developing science experiments on a computer

Which of the following is required for a physical computing system?

• The device looks nice for users

• The system can be connected to the internet

• The components are waterproof

• The system is interactive with its environment

Which of the following is an advantage of algorithmic thinking? Select all that apply.

• Easier to understand

• Increases flexibility

• Less complex

• Written as a flowchart or natural language

In the Microsoft MakeCode environment, what are the blocks of code grouped in?

• Drawers

• Menus

• Tabs

• Folders

Use the image to answer the question. What coordinates would be used to light the LED in the grid position shown?

• 3,2

• 4,3

• 3,4

• 2,3

When code tracing, why is it important to iteratively (repeatedly) test parts of the program?

• To isolate errors in the outcomes of code

• To flowchart the program's logic

• To fix algorithms

• To change patterns in the code

When creating a program, how does the use of comments help a computer scientist debug later problems?

• Comments show where a bug is located in the code

• Comments are opinions from others about how well the code works

• Comments describe the code, logic, and desired outcome

• Comments highlight code that needs to be fixed

Provide an example that shows how changing technology has impacted the way people communicate.

Check all that apply.

• Text messages can be received instantly instead of waiting on the mail

• People can communicate across the world

• People talk faster so the information travels faster

• Today people communicate with cell phones whereas before it was by written letters or by word of mouth

Why is it important to share physical computing projects with other people?

• To have others identify what materials are needed for the project

• To have others interact with the system and provide feedback

• To have others copy the program and design

• To have others read the comments in the code