Question # 1

What are digital images made up of.

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Pixels

Vectors

Lines

Points

How many characters can ASCII represent.

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128

256

512

1024

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

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6

7

8

9

What is the X-Y method used fo in Scratch.

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To create a timer

To create a variable

To allow the user to move a sprite using arrow keys

To create a sound effect

The best way to remember a value when designing the program is to use a.

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Variable

Value

Number

Sound

How are numbers represnted in computers.

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Using electronic switches

Using analog singals

Using mechanical switches

Using hydrulic signals

How many important variable blcks are there in Scratch.

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One

Two

Three

Four

What is the purpose of the timer in Scractch.

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To creae a variable

To chagne the background color

To display the program as it runs

To measure time

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

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

The term ........... also refers to any digital encoding system in which there are exactly two possible states.

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Digital

Binary

Python

Programming

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

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