scratch and binary x

Question 1

which direction do you face if you put in 90 degrees

Answer 1

you face the east

Question 2

which direction do you face if you are at a 180 degree angle

Answer 2

you face south

Question 3

which direction do you face if you are at a -90 degree angle

Answer 3

you face west

Question 4

which direction do you face if you are at a 0 degree angle

Answer 4

you face north

Question 5

what folder is the loops in

Answer 5

control

Question 6

what folder is the start buttons in

Answer 6

events folder

Question 7

what is scratch

Answer 7

it’s a programming game that lets you create anything you want and share it online

Question 8

what are binary numbers

Answer 8

the ones and zeroes used by our computer systems rather than our decimal numbers zero to nine

Question 9

what do computers use instead of units, tens, hundreds and thousands

Answer 9

they use the power of 2 - 1,2,4,8 etc

Question 10

what can 22 be made up of

Answer 10

a 16 a 4 and a 2

Question 11

what do you put in every column you don’t need a number from

Answer 11

you put a 0

Question 12

what is the smallest number you can represent using 8 bit binary

Answer 12

0

Question 13

what is the largest number you can represent using 8 bit binary

Answer 13

225

Question 14

what do all odd numbers have in common when it comes to binary

Answer 14

they need a one in them

Question 15

what does all even numbers have in common when it comes to binary

Answer 15

they don’t need a one in them

Question 16

how can text in a computer system be represented

Answer 16

by using 8 bits to represent one character

Question 17

what is each character given

Answer 17

a unique binary code

Question 18

what does ASCII stand for

Answer 18

American standard code of information interchange

Question 19

what is ASCII used for

Answer 19

encoding, format for text data in computers and on the internet

Question 20

how many bits are used for one ASCII character

Answer 20

8

Question 21

apart from letter of the alphabet what is ASCII used to represent

Answer 21

numbers and characters

Question 22

how many different characters and symbols can ASCII represent

Answer 22

127

Question 23

what are bitmap images made up of

Answer 23

pixels in a grid

Question 24

what does each pixel in the image contain

Answer 24

they contain information about the colour to be displayed

Question 25

at the simplest level, what can black and white pixels be represented as

Answer 25

zeroes and ones

Question 26

what does more pixels mean

Answer 26

higher resolution and better quality images

Question 27

how many pixels are in a single photo

Answer 27

millions of pixels

Question 28

how many bits can pixels store

Answer 28

normally 24

Question 29

what would happen is you saved up every bit for every pixel

Answer 29

it would take up a lot of space

Question 30

what does the first number always relate to

Answer 30

the number of white pixels

Question 31

what happens if the first pixel is black

Answer 31

the line will begin with a zero