Python Programming

Question 1

What is an algorithm?

Answer 1

An algorithm is a step-by-step procedure, which defines a set of instructions to be executed in a certain order to get the desired output

Question 2

What is the purpose of a python algorithm?

Answer 2

Python algorithms provide a detailed set of instructions by which you can process data for a specific purpose.

Question 3

What are variables and what are some types?

Answer 3

They are containers for storing values. Some types include text and number variables.

Question 4

What are integers?

Answer 4

Whole numbers.

Question 5

What is ‘float’ in Python?

Answer 5

A number that isn’t whole (eg - 2.3).

Question 6

What are the rules of text variables?

Answer 6

Must begin with a letter

Contain only letters and numbers or underscores but no other symbols

Must not be commands, e.g. PRINT is not a valid variable

Must not have any spaces

Cannot start with a number

Question 7

What does the ‘print’ command do?

Answer 7

Prints a specified message onto your screen.

Question 8

How do you add things together in Python?

Answer 8

Use +.

Example: 786 + 110

Question 9

How do you subtract in Python?

Answer 9

Use -.

Example: 14 - 12

Question 10

How do you multiply things together in Python?

Answer 10

Use *.

Example: 5 * 124000

Question 11

How do you divide in Python?

Answer 11

Use /.

Example: 786 / 110

Question 12

How do you write powers?

Answer 12

Use the command pow(number, number)

Example: pow(5, 622)

Question 13

How do you use square root and pi and Python?

Answer 13

First, you must write the code import math. Then you can write math.sqrt or math.pi

Example: math.sqrt(100)

Question 14

What is the greater than sign in Python?

Answer 14

>

Question 15

What is the less than sign in Python?

Answer 15

<

Question 16

What is the greater than or equal to sign in Python?

Answer 16

> =

Question 17

What is the less than or equal to sign in Python?

Answer 17

<=

Question 18

What is the equal to sign in Python?

Answer 18

==

Question 19

What is the not equal to sign in Python?

Answer 19

!=

Question 20

What does the if statement mean in Python?

Answer 20

If a condition if true, then do this.

Question 21

What does the elif statement do?

Answer 21

The elif keyword is Python’s way of saying “if the previous conditions were not true, then try this condition”

Question 22

What does the else statement do?

Answer 22

The else keyword catches anything not caught by the previous conditions.