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Y9 Binary Quiz

Total questions: 29

Worksheet time: 15mins

Name
Class
Date
1.
What are the only two numbers you can use in binary?
a)
0 and 1
b)
1 and 2
c)
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
d)
1, 2, 4, 8, 16
2.
Which of these is the correct sequence for the place values for binary numbers?
a)
1, 2, 4, 8, 16, 32, 64, 128
b)
1, 2, 4, 6, 8, 10, 12, 14, 16
c)
1, 2, 3, 4, 5, 6, 7, 8
d)
0, 1
3.
What is the point of binary?
a)
It represents how computers interpret electrical signals
b)
Because we like to make you do extra maths ;-D
c)
For the lulz
d)
Because it describes star systems
4.
What kind of data does a computer represent with binary?
a)
numbers
b)
letters
c)
pictures
d)
all of the above
5.

What kind of 'base' system is binary known as?

a)

Base 12

b)

Base 8

c)

Base 2

d)

Base 10

6.
If a binary number ends with a 1, it must be...
a)
An odd number
b)
An even number
c)
A prime number
d)
The number 12
7.
11111 can be read as what decimal number?
a)
31
b)
10
c)
18
d)
63
8.
ASCII is:
a)
a numerical system that has 2 rather than 10 as a base.
b)
the most common format for text files in computers and on the Internet
9.
Convert 65 to binary
a)
1000001  
b)
1000010
c)
1000011
d)
1100010
10.
Convert this to a decimal number
a)
13
b)
12
c)
10
d)
8
11.

Which number system has ten possible values, 0 through 9, for a single digit?

a)

binary

b)

decimal

c)

hexadecimal

d)

ASCII

12.

The binary number 100111, when converted to base-10 is ___

a)

4

b)

23

c)

39

d)

43

13.

The binary number 101010, when converted to base-10 is ___

a)

28

b)

30

c)

36

d)

42

14.

In a binary table starting at 1, when we move to the next column on the left, we ____________ the value of the column.

a)

halve

b)

square

c)

double

d)

triple

e)

hash

15.

How do we show the number 28 in binary?

a)

00101010

b)

00011001

c)

00011100

d)

00110011

16.

The number 54 in binary is:

a)

00110110

b)

36

c)

00110101

d)

00101001

17.
A pixel is the _______ part of an image.
a)
Smallest
b)
Largest
18.
The colour of a pixel can be stored as a _______ number
a)
Unicode
b)
Hex
c)
Binary
d)
ASCII
19.
What is meant by the term 'colour depth'?
a)
Width and height of an image.
b)
A pixel in an image.
c)
Quality of the colour.
d)
Number of bits used to encode each pixel.
20.

How many unique colours are used in this image?

a)

2

b)

3

c)

4

d)

8

21.

How many binary digits are used to create the colours?

a)

2

b)

3

c)

4

d)

8

22.

How many pixels are used to create this image?

a)

3

b)

4

c)

8

d)

64

23.

How many different colour combinations can be made with 3 binary digits e.g. 101

a)

16

b)

2

c)

4

d)

8

24.

Increasing the number of pixels for an image will allow more details to be added.

a)

True

b)

False

25.

How many binary digits are used to create the colours for this image?

a)

1

b)

2

c)

3

d)

4

26.

What is the binary value for the colour white?

a)

0000

b)

0001

c)

0100

d)

0101

27.

How many colours are used to create this image?

a)

3

b)

4

c)

5

d)

8

28.

How many binary digits are used to create the colours in image?

a)

3

b)

4

c)

5

d)

8

29.
Bitmap or 'raster' graphics are made up of _______
a)
Shapes and lines
b)
Pixels

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