Question # 1

What is the purpose of the delay block in scratch.

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To add a sound effect

To change the back ground colour

To create a timer

To slow down the program execution

--------------- bits together make, what we call a "byte" of the data.

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6

7

8

9

What is the most commonly known numbere system.

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Binary numebr system

Decimal numebr system

Octal numebr system

Hexadecimal numebr system

What is the most significant bit in a binary number.

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The bit to the extreme left

The bit to the extreme right

The middle bit

It depends onthe number

How many cardinal directions can a sprite move in Scratch.

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2

3

4

5

How many bytes are threre in a kilobyte.

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1000

1024

2048

512

What is the decimal equivalent of the binary number 1011

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6

8

9

11

----------- are represented in the computer using 8-bit numbers.

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Numbers

Letters

Images

Colors

Where do you add script blocks in Scratch.

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Stage area

Block categories

Script area

Sprite list

Which block specifices different directions for a sprite to move in Scratch.

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Move ten steps

Point -in- direction

Forever loop

Repeat loop

Who reflned the binary number system in the 17th cenury.

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Isaac Newton

Albert Einstein

Galleo Calilei

Gottfried Leibniz

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Computer Education 7th Class Chapter 4 Online Test MCQs With Answers

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