Conditionals Practice

These questions follow Conditionals. A conditional is a fork in the road — the whole skill is knowing which branch runs, and why.

Questions

1. Which of these jobs needs a conditional, and which is just a sequence of steps? (a) greet every name on a list, (b) charge less if the customer is a student, (c) print today’s date.
2. Predict the output when temp is -5, then when it is 30.

   if temp > 25:
       print("Hot")
   elif temp > 0:
       print("Mild")
   else:
       print("Brrr")

3. Find the bug. Python refuses to run if mark = 50: at all. What did the writer mean, and why does Python object?
4. Predict the output when age is 16 — then when it is 20.

   if age >= 13:
       if age <= 19:
           print("Teen")

5. Write a four-line snippet: ask for a password, then print Welcome if it equals sesame and No entry otherwise.
6. Challenge. Rewrite question 4 as a single if using and — then suggest why real checks often keep conditions separate.

Answers

Answer 1

Only (b) — the price depends on something. (a) is repetition — a job for a loop — and (c) is plain sequence.

Answer 2

-5: neither test is true — Brrr. 30: Hot, and Mild never gets a look — an elif chain stops at the first true test.

Answer 3

They meant ==, the question “are these equal?“. A single = is a command, and a command cannot be a condition — a SyntaxError.

Answer 4

16: both tests pass — Teen. 20: the outer test passes, the inner one fails, and nothing at all prints — there is no else.

Answer 5

password = input("Password: "); if password == "sesame": with print("Welcome") beneath; else: with print("No entry").

Answer 6

if age >= 13 and age <= 19: — one line, same behaviour. Separate conditions let each failure carry its own, more useful message.

Curriculum connection

C1.4

determine the appropriate expressions and instructions to use in a programming statement, taking into account the order of operations

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C1.5

identify and explain situations in which conditional and repeating structures are required

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C2.3

write programs that include single and nested conditional statements

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