2.2 Programming techniques - repetition

A variable is

• a named value in memory that can be changed

• a named value in memory that cannot be changed

• a unnamed value in memory that can be changed

• a named value on the hard drive can be changed

A constant is

• a named value in memory that can be changed

• a named value in memory that cannot be changed

• a unnamed value in memory that can be changed

• a named value on the hard drive can be changed

An example of a constant could be..

• Username

• Length of side

• Pi

• Area

for i in range(10):

What type of loop is this?

• Count controlled

• Condition controlled

• Uncontrolled

• It's not a loop

while x != 0:

What type of loop is this?

• Count controlled

• Condition controlled

• Uncontrolled

• It's not a loop

Which is the correct way to initialise a list?

• list = {1,2,3,4}

• list (1,2,3,4)

• list = [1,2,3,4]

• [1,2,3,4]

if x == 10 THEN

print (x)

this is an example of..

• iteration

• concatenation

• selection

• recursion

for x in range (10)

print(x)

this is an example of..

• iteration

• concatenation

• selection

• recursion

how would you import the random library in Python

• import number

• import random

• import variable

• import time

Add an item to a list..

• amend

• write

• add

• append