Year 11 Computing — Changing and growing a list

1.A list called pins holds [8, 3]. Each of these lines is run on its own, starting from that list every time. Put them in order of how many values pins holds afterwards, fewest first.

• pins.append(9)
• pins[0] = 4
• pins = pins + [6, 7, 0]
• pins = pins + [1, 2]

2.Two values are added on the end, one after the other. What does this program print?

bag = [3]
bag.append(7)
bag.append(2)
print(bag[1] + bag[2])

3.A value is written over, and then the list is measured. What does this program print?

sizes = [5, 2, 9]
sizes[0] = 40
print(len(sizes))

4.Two lists are joined into a third one here. What does this program print?

first = [1, 2]
second = [7, 8, 9]
both = first + second
print(len(both))

5.Something is added on the end and something else is written over. What does this program print?

row = [2, 4, 6]
row.append(8)
row[0] = 10
print(row[0] + row[3])

6.Something is added on the end, and then a position from before the change is asked for. What does the program print?

marks = [12, 7, 20]
marks.append(5)
print(marks[2])

7.Two lists are joined, and then a position is asked for out of the joined one. What does this program print?

a = [10, 20]
b = [30, 40, 50]
c = a + b
print(c[3])

8.A list called box already holds four values. Sort each line by what it does to how long the list is.