Programming Expressions Quiz

What is an expression in programming?

• A function that does not return any value

• A valid combination of variables, literals, operators, and function calls that computes to a single value

• A type of Python variable

• A command that prints output to the console

Answer explanation

An expression in programming is a valid combination of variables, literals, operators, and function calls that computes to a single value, as stated in the correct answer choice.

Which of the following is an example of an expression that assigns a value to a variable?

• i + 3

• "Hello" + " " + "World"

• my_func("1", "2")

• x = 10

What do arithmetic expressions in Python evaluate to?

• A string concatenation

• A Boolean value

• A number using mathematical operators like +, -, *, /, %

• A Python function call

What type of expression is used to evaluate to a character or string and often involves operators like concatenation (+) and combined concatenation and assignment (+=)?

• Arithmetic expression

• Logical expression

• String expression

• Boolean expression

Which of the following is an example of an arithmetic expression as discussed in the learning material?

• im_drinking_coffee = False

• "x*x + 2*x + 1"

• im_eating_cookies = True

• "The value of my arithmetic expression is:"

What will be the value of the variable 'my_arithmetic_expression' if x is assigned the value 7?

• 42

• 50

• 57

• 64

What type of expression is 'im_drinking_coffee = False'?

• Arithmetic expression

• Logical expression

• String expression

• Assignment expression

What are whole numbers like 1, 2, and -1 called in Python?

• Floats

• Strings

• Integers

• Booleans

What Python data type is used for numbers with decimal values?

• Integers

• Strings

• Floats

• Lists

Which Python function converts a value to an integer?

• float(value)

• str(value)

• int(value)

• list(value)