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WorksheetsYear 7 Data Representation
Total questions: 20
Worksheet time: 10mins
What is this binary number in denary? 1000
2
4
6
8
What is this binary number in denary? 0110
5
6
7
8
What is this binary number in denary? 10001
15
16
17
18
Is this binary number even or odd? 10101010101
Even
Odd
Convert this denary number to binary: 14
1110
1000
1001
0110
Convert this denary number to binary: 18
10010
10110
01010
10001
If the letter A in ASCII has the denary value 65, what denary value does the letter D have?
62
68
70
60
The letter A in ASCII has denary value 65. What is this in binary?
1000001
0111110
1001001
The letter B in ASCII has binary value 1000010. What is the binary for the letter C in ASCII?
1000010
1000011
1111111
1000001
A black and white picture is stored in binary as 0000010001000100. Is this picture bright or dark?
Bright
Dark
A black and white picture is stored in binary as 11110110111100111111. Is this picture bright or dark?
Bright
Dark
Which of these binary values could be a picture of a chessboard?
11110011110111100
0101010101010101
0000000000000000
11111111111111111
This binary represents a picture with dimensions 3 x 3. 010000010. What is the pixel value at co-ordinates (0,0)
0
1
This binary represents a picture with dimensions 3 x 3. 010000010. What is the pixel value at co-ordinates (1,0)
0
1
Where on a picture is the pixel with co-ordinates (0,0)
top-right
bottom-right
bottom-left
top-left
Convert 8 Bytes into bits
64 bits
1 bit
8000 bits
Convert 1 kiloByte in Bytes
1000 Bytes
1000000 Bytes
8000 Bytes
convert 8000 bits into kiloBytes
1 kiloByte
8 kiloBytes
1000 kiloBytes
How many Bytes would an image be that is 16 pixels wide and 32 pixels high?
16 x 32 / 8
16 x 32
16 x 32 / (8 x 8)
(16 + 32) / 8
How many bits would an image be that is 100 pixels wide and 64 pixels high?
100 x 64 / 8
100 x 64
100 + 64
100 x 64 / (8 x 8)
