Variables

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Which term describes a named location in memory that holds a value which can change while the program is running?: Variable
What is meant by a temporary variable?: A variable used to hold one value briefly while two other values are swapped
Which term describes the process of giving a value to a variable using the = symbol?: Assignment
Which term describes a variable whose value is increased by adding each new amount to the value that it already holds?: Running total
Which term describes a variable name such as totalCost, where the words are joined and each word after the first begins with a capital letter?: CamelCase
Which term describes a word such as if or while that Python keeps for its own use and that cannot be used as a variable name?: Keyword
Which characters may be used in a Python variable name?: Letters, digits and underscores
A program runs the line total = total + price, but total has never been given a value. What is the problem?: Total has no value, so the program stops with an error
The variable score holds the value 10. What is displayed by print('score')?: The word score
What does this program print?: 4
What does this program print?: 10 then 6
What does this program print?: 3 then 7
Which of these is NOT a valid variable name in Python?: Total cost
In the line area = 3.142 * radius * radius, which names are the variables?: Both area and radius
A programmer needs a variable to store the score of the current player. Which name is best?: PlayerScore
A variable called score holds the value 10. The program then runs the line score = 25. What happens to the value 10?: It is replaced by 25 and lost
A programmer writes the line 2ndScore = 10 in a program, but the line causes an error. Why?: A variable name cannot start with a digit
A program counts how many items it has processed, using a variable called count. Which line increases count by one and stores the new value?: Count = count + 1
A program stores the length of a rectangle in length and its width in width. Which line calculates the area and stores it in the variable area?: area = length * width

Variables

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