Python Quiz

What does this code do?

print("Hello world!")

• Displays 'Hello world!' in the shell window.

• Sends 'Hello world!' to the printer.

• Waits for the user to type in 'Hello world!'

• Displays 'hello, world.' in the shell window.

What symbol do you type in to add a short comment?

• """

• #

• @

• /

True or False:

phone.number is a good name for a variable.

• True

• False

What does this function do?

input()

• Opens the CD tray.

• Asks the user to type something in.

• Displays the word 'input'.

• Exits the program.

What is a variable?

• A number such as 25.

• Plus, minus, multiply, divide or equals.

• An array of text.

• A storage location in the program which stores a value.

True or False:

5.0 is an example of the 'float' datatype.

• True

• False

You write a program where the user types how many apples they want to buy. The program calculates the total cost and displays it on the screen in pounds. What is the output?

• numberOfApples (integer)

• totalPrice = numberOfApples*25/100

• totalPrice (float)

• totalPrice = numberOfApples

What is the process of converting one datatype to another called?

• Data conversion.

• Type Casting.

• Type Conversion.

• Concatenation.

Gjdk is not a good name for a variable, why?

• It starts with a capital letter.

• It does not contain any spaces.

• There are no vowels.

• It's meaningless.

True or False:

You need to convert an integer to a string before you can use it in the print() function.

• True

• False