Binary and Decimal Conversion Flashcard

Front

Convert the decimal number 6 into a binary number.

Back

110

Answer explanation

To convert decimal 6 to binary, divide by 2 and record remainders. 6 ÷ 2 = 3 (remainder 0), 3 ÷ 2 = 1 (remainder 1), 1 ÷ 2 = 0 (remainder 1). Reading remainders from bottom to top gives 110, which is the correct binary representation.

Front

Convert the decimal number 9 into a binary number.

Back

1001

Answer explanation

To convert the decimal number 9 to binary, divide by 2 and record the remainders. 9 ÷ 2 = 4 remainder 1, 4 ÷ 2 = 2 remainder 0, 2 ÷ 2 = 1 remainder 0, 1 ÷ 2 = 0 remainder 1. Reading the remainders from bottom to top gives 1001.

Front

Is converting the binary number #1001 to a decimal number equal to #9?

Back

True

Answer explanation

The binary number #1001 converts to decimal by calculating 1*2^3 + 0*2^2 + 0*2^1 + 1*2^0, which equals 8 + 0 + 0 + 1 = 9. Therefore, the statement is True.

Front

What is the decimal equivalent of the binary number #1011?

Back

11

Answer explanation

To convert binary 1011 to decimal, calculate: (1×2^3) + (0×2^2) + (1×2^1) + (1×2^0) = 8 + 0 + 2 + 1 = 11. Thus, the correct answer is 11.

Front

David is learning about binary numbers. He wonders if converting binary #111 to a decimal # would be #6?

Back

False

Answer explanation

The binary #111 converts to decimal #7, not #6. Therefore, the statement is false.

Front

What is the total when adding the binary numbers 1011 and 1100?

Back

10111

Answer explanation

To add 1011 and 1100 in binary, align them and add column by column, carrying over when necessary. The result is 10111, which is the correct answer.

Front

What is the purpose of a console log?

Back

Log and give instructions to the user

Answer explanation

The purpose of a console log is to log messages and provide instructions to the user during development, helping to debug and understand the flow of the code.

Front

What is the Set Property used for in the context of designing a user interface for a mobile app?

Back

Change properties listed in design mode

Answer explanation

Set Property is used to change properties listed in design mode, allowing developers to modify attributes of UI elements directly within the design interface, enhancing the development process.

Front

At the end of a school project, you are shown the final report once you complete all tasks. What is this considered to be?

Back

Output

Answer explanation

The final page shown at the end of a game represents the result of the game, which is considered an 'Output'. It displays the outcome after all steps have been completed, distinguishing it from terms like Loop, Variable, or String.

Front

In a language learning app used by Ava, buttons such as: English, Spanish, and Next are considered inputs.

Back

True

Answer explanation

The buttons like English, Spanish, and Next are interactive elements that allow users to provide input to the app. Therefore, the statement is true as these buttons are indeed considered inputs.