Alsager - Block 9 - All Bitmap

Alsager - Block 9 - All Bitmap

4th Grade

26 Qs

quiz-placeholder

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Alsager - Block 9 - All Bitmap

Alsager - Block 9 - All Bitmap

Assessment

Quiz

Computers

4th Grade

Practice Problem

Medium

Created by

Richard Steed

Used 4+ times

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26 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do computers represent ALL information?

Using decimal numbers

Using analog signals

Using binary code

Using alphabetic characters

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What formula shows the number of different binary patterns that can be represented in a given number of bits?

2^n

n^2

log(n)

n!

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What expression is used to calculate the file size of an image?

Width + Height + Colour Depth

Width x Height x Colour Depth

Width / Height / Colour Depth

Width - Height - Colour Depth

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is always a trade-off when considering the number of available bits in image representation?

Colour and texture

Resolution and storage space/bandwidth

File format and compatibility

Image quality and editing options

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the units for file sizes?

Pixels

Centimeters

Bytes

Hertz

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What formula shows the size of an image?

image size = width in pixels + height in pixels

image size = width in pixels / height in pixels

image size = width in pixels x height in pixels

image size = width in pixels - height in pixels

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is colour depth?

The number of pixels needed to represent the colour of each pixel.

The number of bits needed to represent the colour of each pixel.

The number of colours that can be displayed on a screen.

The number of bytes needed to represent the colour of each pixel.

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