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WorksheetsYear 10 PPE Quiz of all quizizz
Total questions: 141
Worksheet time: 2hrs 58mins
Name
Class
Date
1.
A tool used to organize, store, retrieve, and communicate groups of related information.
a)
Spreadsheet
b)
Word
c)
Presentations
d)
Database
2.
Which of the following is a common database program?
a)
Access
b)
Excel
c)
InDesign
d)
Badata
3.
A column name is otherwise known as a _____.
a)
field
b)
table
c)
row
d)
record
4.
Data _____ helps ensure that an incorrect entry isn't made.
a)
validation
b)
checks
c)
accuracy
d)
integrity
5.
A quick way to find data in a database is to use _____.
a)
queries
b)
quandries
c)
questions
d)
file folders
6.
What must be common between two tables to create a relationship?
a)
Fields
b)
Characters
c)
Files
d)
Names
7.
The front-end of a database is known as a _____.
a)
form
b)
report
c)
query
d)
website
8.
What is a database?
a)
A database is an organised collection of data
b)
A database is a backup of a data file stored on a computer
c)
A database is a book that contains a log of weather data
9.
What is an example of a computerised database?
a)
Website
b)
Library system
c)
Powerpoint
d)
Word
10.
What is an example of a paper based database?
a)
Telephone directory
b)
Book
c)
Menu
d)
encyclopedia
11.
which would be used as field names?
a)
Address
b)
Town
c)
Title
d)
Apple
12.
Primary key means
a)
normal key
b)
unique key
c)
subordinate key
d)
candidate key
13.
What logic gate is this?
a)
AND
b)
OR
c)
NOT
d)
TO
14.
What logic gate is this?
a)
AND
b)
OR
c)
NOT
d)
THE
15.
What logic gate is this?
a)
OR
b)
NOT
c)
AND
d)
THE
16.
What gate is this truth table for?
a)
AND
b)
OR
c)
NOT
d)
THE
17.
What gate is this table for?
a)
AND
b)
OR
c)
NOT
d)
NOR
18.
What gate is this table for?
a)
AND
b)
XOR
c)
OR
d)
NOT
19.
Logic gates are digital ...
a)
.. Switches
b)
.. Footprints
c)
.. Binary
d)
.. RAM
20.
AND Gate:
IF A and B are ON, the output would be...
IF A and B are ON, the output would be...
a)
ON
b)
OFF
21.
AND Gate:
If A is OFF but B is ON, the output would be...
If A is OFF but B is ON, the output would be...
a)
ON
b)
OFF
22.
Which logic gate is this?
a)
XOR
b)
NOR
c)
NAND
d)
NOT
23.
Which logic gate is this?
a)
NAND
b)
NOR
c)
XOR
d)
NXOR
24.
A AND B = Q, If A=1 and B=1 what does Q equal?
a)
1
b)
0
25.
(NOT A) AND B = Q, If A=0 and B = 1, what does Q equal?
a)
1
b)
0
26.
NOT(A OR B) = Q, if A=0 and B=0, what does Q equal?
a)
1
b)
0
27.
(C AND D) OR (NOT(A OR B)) = Q, If A=1, B=1, C=0 and D=1, what does Q equal?
a)
0
b)
1
28.
The output of a _______ gate is only 1 when both inputs are 1.
a)
OR
b)
NOT
c)
NAND
d)
AND
29.
An OR gate has......
a)
Two inputs and one input
b)
One input and one output
c)
One input and two outputs
d)
Two inputs and two outputs
30.
A NOT gate has......
a)
Two inputs and one input
b)
One input and one output
c)
One input and two outputs
d)
Two inputs and two outputs
31.
A NAND gate is the combination of which two gates?
a)
OR and AND
b)
AND and NOT
c)
NOT and OR
d)
OR and NAND
32.
What is pseudocode?
a)
Simplified programming language, that is not a specific language
b)
Complicated programming language
c)
Simple programming language, which is linked to a specific language
d)
A type of cheese
33.
What flowchart symbol does this represent?
a)
Input/Output
b)
Start/End
c)
Decision
d)
Process
34.
What is this symbol?
a)
Decision
b)
Input/Output
c)
Start/End
d)
Process
35.
What does this pseudocode do?
print "Hello"
print "Hello"
a)
Nothing
b)
Prints the word "Hello" to the output
c)
hello is print in pseudocode
d)
The code won't work
36.
Abstraction is the representation of real world problems in a computer
a)
True
b)
False
37.
What is decomposition?
a)
Breaking down of soil
b)
Breaking down of a problem into smaller chunks
c)
Making a problem a bigger deal
d)
Breaking smaller chunks of problems into one large problem
38.
A linear search is when a list is split into 2 and compared?
a)
True
b)
False
39.
What is a binary search?
a)
Each item is checked in order
b)
The list is split into 2 and compared
c)
The first 2 values are compared and moved
d)
Nothing happens
40.
Bubble sort takes the first two values of a list, and swaps them if wrong?
a)
True
b)
False
41.
Merge Sort is?
a)
When a list is kept as one and compared
b)
List is split into 2 and merged together
c)
List is split into 2 and kept seperate
d)
Nothing
42.
An Insertion sort builds the final list two items at a time
a)
True
b)
False
43.
What does this shape represent in flowchart?
a)
Start/Stop
b)
Decision
c)
Process
d)
Input/Output
44.
What is the correct symbol for an input in a flowchart?
a)
A diamon
b)
A square
c)
A parallelogram
d)
A rectangle
45.
The process carried out in computer systems is represented by _______________ in flowchart.
a)
Rectangle
b)
parallelogram
c)
Square
d)
Diamond
46.
What links each instruction in a flowchart?
a)
A line
b)
A double line
c)
An arrow
d)
A double arrow
47.
Computers can solve any problem that can be computationally solved.
a)
TRUE
b)
FALSE
48.
What does this shape represent in flowchart?
a)
Input/Output
b)
Process
c)
Decision
d)
Start/Stop
49.
Why do computers use algorithms?
a)
To give computers precise steps to solve a problem.
b)
Because they are easy to use
c)
It is the language that computers understand
d)
To help them predict the future
50.
What does sequence mean?
a)
To create a pattern
b)
To do something in order
c)
To do something randomly
d)
To repeat something over and over again
51.
What does selection mean?
a)
Selection is following instructions in order.
b)
Selection is to repeat something over and over again
c)
Selection is when you have a choice of options
d)
Selection is choosing the best option
52.
What is iteration?
a)
This is choosing what to do next
b)
This means doing something in order
c)
It is repeating something over and over again.
d)
It is writing pseudocode
53.
Which sorting algorithm makes one swap per pass (possibly swapping an element with itself)?
a)
Selection Sort
b)
Bubble Sort
c)
Insertion Sort
54.
Which sorting algorithm may make multiple swaps per pass?
a)
Bubble Sort
b)
Selection Sort
c)
Insertion Sort
55.
Which sorting algorithm shifts elements instead of swapping elements if needed in each pass.
a)
Bubble Sort
b)
Selection Sort
c)
Insertion Sort
56.
How many passes will both the selection and insertion sorts make?
a)
N
b)
N-1
c)
N+1
d)
(N+1)/2
57.
The following lists represent 3 passes of a sorting algorithm. Which algorithm is being used to sort the list?
4 5 9 6 2 7
4 5 6 2 7 9
4 5 2 6 7 9
4 5 9 6 2 7
4 5 6 2 7 9
4 5 2 6 7 9
a)
Bubble Sort
b)
Selection Sort
c)
Insertion Sort
58.
The following lists represent 3 passes of a sorting algorithm. Which algorithm is being used to sort the list?
4 8 6 2 5 7
4 8 6 2 5 7
4 6 8 2 5 7
4 8 6 2 5 7
4 8 6 2 5 7
4 6 8 2 5 7
a)
Bubble Sort
b)
Selection Sort
c)
Insertion Sort
59.
The following lists represent 3 passes of a sorting algorithm. Which algorithm is being used to sort the list?
4 8 3 9 2 6
2 8 3 9 4 6
2 3 8 9 4 6
4 8 3 9 2 6
2 8 3 9 4 6
2 3 8 9 4 6
a)
Bubble Sort
b)
Selection Sort
c)
Insertion Sort
60.
We are sorting the following list in ascending order:
1 4 2 9 3 8 5
What does the list look like after one pass of the bubble sort algorithm.
1 4 2 9 3 8 5
What does the list look like after one pass of the bubble sort algorithm.
a)
1 2 4 3 8 5 9
b)
1 4 2 5 3 8 9
c)
4 2 9 3 8 5 1
61.
We are sorting the following list in descending order:
1 4 2 9 3 8 5
What does the list look like after one pass of the selection sort algorithm.
1 4 2 9 3 8 5
What does the list look like after one pass of the selection sort algorithm.
a)
1 4 2 9 3 8 5
b)
9 4 2 1 3 8 5
c)
4 2 9 3 8 5 1
62.
We are sorting the following list in ascending order:
1 4 2 9 3 8 5
What does the list look like after one pass of the insertion sort algorithm.
1 4 2 9 3 8 5
What does the list look like after one pass of the insertion sort algorithm.
a)
1 4 2 9 3 8 5
b)
4 2 9 3 8 5 1
c)
4 1 2 9 3 8 5
63.
A loop repeated if the condition is true / false
a)
While loop
b)
For loop
c)
Repeat loop
d)
If...else
64.
Loop executed a fixed number of times with a built-in-counter (creating a counter variable is unnecessary).
a)
While loop
b)
For loop
c)
Repeat loop
d)
If...else
65.
Code repeated / looped until a condition has been met or a set number of times.
a)
Sequence
b)
Selection
c)
Iteration
d)
Variable
66.
Code executed based on a condition being true
a)
Sequence
b)
Selection
c)
Iteration
d)
Variable
67.
The user is asked to enter a number which must be below one hundred. What type of iteration would be used to check this?
a)
For loop
b)
While loop
c)
Check loop
d)
Repeat loop
68.
To solve a problem that requires the user to enter 10 numbers would use what type of iteration?
a)
While loop
b)
For loop
c)
Variable
d)
Selection
69.
What will print to the screen in this code?
a)
18
b)
-25
c)
-10
d)
-15
70.
Which line will give a type error (assuming the user gives a positive integer input) ?
a)
First
b)
Second
c)
Third
d)
Fourth
71.
Repeating section of code to simplify a solution
a)
Code
b)
Loops
c)
Program
d)
Bugs
72.
Consider the loop control structure in programming. Which term describes a loop that continues repeating without a terminating (ending) condition?
a)
Conditional Loop
b)
Unlimited Loop
c)
Sequence Loop
d)
Infinite Loop
73.
How many times will Boo be output?
a)
none
b)
4
c)
5
d)
1
74.
What will print?
a)
1
2
11
2
11
b)
1
2
21
2
21
c)
1
2
3
11
2
3
11
d)
1
2
3
21
2
3
21
75.
Which of the following best describes the order in which these lines are processed in Python?
a)
1,2,3,4
b)
1,2,1,2,1,4
c)
1,2,1,2,1,2,4
d)
1,2,1,2,1,2,1,2,4
76.
In programming, what is iteration?
a)
The repetition of steps within a program
b)
The order in which instructions are carried out
c)
A decision point in a program
d)
Testing a program to make sure it works
77.
What will print to the screen?
a)
0
b)
2
c)
3
d)
1
78.
What will print to the screen in this code?
a)
18
b)
-25
c)
-10
d)
-15
79.
Which of the following can complete the code so that 6.0 prints to the screen?
a)
* 3 / 2
b)
+ 1
c)
/ 0.5
d)
+ 3 * (1/ 2)
80.
Assuming num is cast to an integer, what logical error was made on the third line?
a)
Not using a for loop
b)
It should be count < num
c)
It should be <=
d)
No logical error
81.
Which of the following will print:
a)
for i in range(1, 5):
print(str(i) * 5)
print(str(i) * 5)
b)
for i in range(1, 5):
print("i" * i)
print("i" * i)
c)
for i in range(1, 6):
print("i" * i)
print("i" * i)
d)
for i in range(1, 6):
print(str(i) * i)
print(str(i) * i)
82.
What is the output from this code snippet?
a)
1, 0, 1, 1, 0, 1, 1, 1, 1, 1
b)
0, 1, 1, 0, 1, 1, 0, 1, 1, 0
c)
0, 1, 1, 0, 1
d)
0, 1, 1, 1, 1, 1, 0, 1, 1, 0
83.
What is the output from this code?
a)
1, 0, 0, 0, 1
b)
1, 0, 0, 0, 0
c)
20, 60, 100, 140, 200
d)
1, 1, 0, 0, 0
84.
What is the output from this code snippet?
a)
5
b)
4
c)
3
d)
2
85.
Which type of loop iterates until instructed otherwise?
a)
A condition-controlled loop
b)
A count-controlled loop
c)
A repeat-once loop
86.
Convert 65 to binary
a)
01100001
b)
00100001
c)
01000001
d)
00100101
87.
Convert 254 to binary
a)
11110000
b)
11111100
c)
11111111
d)
11111110
88.
Convert 00010001 to decimal
a)
17
b)
27
c)
37
d)
47
89.
Convert 11111111 to decimal
a)
255
b)
245
c)
235
d)
225
90.
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
91.
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
92.
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
93.
What is the denary number system?
a)
It counts the number of dens
b)
Our usual base 10 number system
c)
A special number system for computers
d)
Den Ary's number system
94.
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
95.
What is 12 in binary?
HINT: It has an 8 and a 4 in it!
HINT: It has an 8 and a 4 in it!
a)
12
b)
11
c)
1100
d)
1011
96.
What is 1011 in denary?
a)
11
b)
14
c)
26
d)
1011
97.
What is 0101 + 1010?
HINT:
1 + 0 = 1
0 + 1 = 1
1 + 1 = 10
HINT:
1 + 0 = 1
0 + 1 = 1
1 + 1 = 10
a)
1111
b)
2020
c)
146.6
d)
?
98.
Convert 157 decimal to HEX
a)
AE
b)
90
c)
9D
d)
A4
99.
Convert 3A from Hex to decimal
a)
13
b)
58
c)
40
d)
92
100.
Convert 11 HEX to Binary
a)
10001
b)
1011
c)
17
d)
11001
101.
What metadata is stored with an image file?
a)
The colours, the colour depth and the resolution.
b)
The size, the genre and the resolution.
c)
The size, the colour depth and the resolution.
d)
The colour depth, the resolution and the genre.
102.
To transfer sound to a computer it needs to be digitally...
a)
passed
b)
interval rate
c)
given
d)
sampled
103.
The type of compression which removes some of the data from a file in order to reduce its size.
a)
Lossy
b)
Lossless
104.
The type of compression which is used when it is important to not lose any of the information in a file.
a)
Lossy
b)
Lossless
105.
What is metadata
a)
It is very large data
b)
It is the data that is stored with every file which gives information about the file
c)
It is data that is compressed
106.
What is Image Resolution?
a)
The number of pixels per inch
b)
how a picture appears on the screen
c)
How clear a picture is
107.
What Metadata is stored with an Image File?
a)
image size, bit depth (colour type), date/time, location, camera type, camera settings
b)
Sampling rate, bit depth, metadata
c)
Colour, resolution, who took the picture
108.
What does colour depth mean?
a)
It refers to the number of bits used to represent the colour.
b)
It refers to how deep the colours go
c)
it refers to the number of bytes in the colours
109.
How many colours do we get from 2 bits
a)
2 colours
b)
4 colours
c)
8 colours
d)
24 colours
110.
How many colours do we get from 3 bits?
a)
2 colours
b)
4 colours
c)
8 colours
d)
24 colours
111.
How does image resolution affect file size?
a)
The more pixels per inch the greater the file size
b)
the bigger the screen the greater the size
112.
how many colours do we get from 4 bits
a)
2
b)
4
c)
8
d)
16
113.
When a picture becomes blurry, what is the key-term for descibing what the picturehas become?
a)
Pick up truck
b)
Pixie letters
c)
Pixar
d)
Pixelated
114.
Which file-type has the largest file size?
a)
JPEG
b)
PNG
c)
GIF
d)
BMP
115.
A pixel is the _______ part of an image.
a)
Smallest
b)
Largest
116.
The colour of a pixel can be stored as a _______ number
a)
Unicode
b)
Hex
c)
Binary
d)
ASCII
117.
Each pixel is displayed using a combination of what three colours?
a)
Blue, green and purple
b)
Red, grey and white
c)
Red, green and blue
d)
White, red and blue
118.
Picture resolution refers to the concentration of pixels. How is it usually measured?
a)
Dots per inch (DPI)
b)
Dots per image (DPI)
c)
Pixels per inch (PPI)
d)
Pixels per image (PPI)
119.
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.
120.
The higher the colour depth, the _________the image file size.
a)
Smaller
b)
Larger
121.
Which of the following is NOT metadata that could be stored about an image?
a)
Pixel width and height.
b)
Picture resolution measured in DPI
c)
Camera name and model.
d)
Printer description
122.
A continuous sound signal
a)
Analogue
b)
Digital
123.
Increasing the Sample Rate/ Bit Rate increases the ______
a)
Detail
b)
Accuracy
c)
File Size
d)
All of the above
124.
What is the sample rate measured in?
a)
BPS
b)
Hz
125.
44.1KHz would be
a)
44100 Hz
b)
88200 Hz
126.
The purpose of data compression is to decrease file sizes .
a)
True
b)
False
127.
Data compression usually works by..
a)
Finding repeating patterns.
b)
Deleting random bits data
128.
Binary notation uses only 0-1.The decimal system uses
a)
1-10
b)
0-9
c)
1-100
d)
0 to infinity
129.
A jpeg is a compressed image file.
a)
True
b)
False
130.
What type of compression would you use to compress a text file?
a)
Lossy
b)
Lossless
131.
What type of compression would you use to compress a video?
a)
Lossy
b)
Lossless
132.
What is Lossless Compression?
a)
No information is lost but file size is increased
b)
There is no loss of information at all after compression
c)
Files which have the exact same data after compression
d)
Compression involves an algorithm
133.
What does Lossy Compression do to files?
a)
Increases the file size and keeps the same quality
b)
Eliminates no information at all
c)
Decreases the file size and keeps the same quality
d)
Eliminates unnecessary information in a file to reduce file size
134.
When Lossy compression is used data is lost?
a)
True
b)
False
135.
Uncompressed audio and video files require less memory than compressed files....
a)
True
b)
False
136.
The audio file format MP3 is:
a)
Lossy
b)
Lossless
137.
The video file format MP4 is:
a)
Lossy
b)
Lossless
138.
Makes the file smaller by deleting parts of the file permanently (forever)
a)
Lossy Compression
b)
Lossless Compression
139.
Has this been compressed using Lossy or Lossless?
a)
Lossy
b)
Lossless
140.
Has this been compressed using Lossy or Lossless?
a)
Lossy
b)
Lossless
141.
01010101 is binary for which ASCII letter
a)
R
b)
S
c)
T
d)
U
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