Understanding Selections in Algorithms

What are selections in algorithms?

• Variables or constants

• Loops or iterations

• Functions or methods

• Decisions or questions

Why are selections used in algorithms?

• To make algorithms more realistic

• To make algorithms faster

• To make algorithms shorter

• To make algorithms more complex

What is represented by the instructions IF, THEN, and ELSE in algorithms?

• Abstraction

• Recursion

• Iteration

• Selection

What does the IF THEN part of the statement do?

• Causes one path to be followed if the condition is false

• Causes one path to be followed if the condition is true

• Causes the algorithm to repeat

• Causes the algorithm to stop

What does the ELSE part of the statement do?

• Causes another path to be followed if the condition is false

• Causes another path to be followed if the condition is true

• Causes the algorithm to repeat

• Causes the algorithm to stop

At certain steps in an algorithm, what might be needed?

• A variable

• A decision

• A loop

• A function

What is the purpose of making decisions in algorithms?

• To store data

• To determine the next step

• To repeat actions

• To define variables

Which part of the IF THEN ELSE statement is executed if the condition is false?

• None

• THEN

• IF

• ELSE

What happens if the condition in an IF THEN statement is true?

• The algorithm repeats

• Another path is followed

• The algorithm stops

• One path is followed

What is the main function of the IF statement in an algorithm?

• To store a value

• To define a function

• To repeat a process

• To check a condition