Boolean Logic, Comparison Operators, and Loops Review Quiz

Boolean Logic, Comparison Operators, and Loops Review Quiz

10th Grade

31 Qs

quiz-placeholder

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Boolean Logic, Comparison Operators, and Loops Review Quiz

Boolean Logic, Comparison Operators, and Loops Review Quiz

Assessment

Quiz

Computers

10th Grade

Medium

Created by

PATRICIA LAMMERT

Used 1+ times

FREE Resource

31 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Michael and Harper are planning a picnic. They will go only if both the weather is sunny and they both have a day off. What does the && (AND) operator return when both conditions are true?

true

false

undefined

an error

Answer explanation

The && (AND) operator returns true when both conditions are true. Since Michael and Harper will picnic only if the weather is sunny and they both have a day off, both conditions being true results in true.

2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Zoe is deciding whether to go for a walk. She will only go if it is sunny and not raining. What is the result of it being sunny && raining?

She will go for a walk

She will not go for a walk

undefined

an error

Answer explanation

Zoe will not go for a walk because the condition requires it to be sunny and not raining. Since it is raining, the condition is not met.

3.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What is the result of !(true)?

true

false

null

undefined

Answer explanation

The expression !(true) uses the logical NOT operator, which negates the value. Since true is being negated, the result is false. Therefore, the correct answer is false.

4.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What is the output of the following JavaScript code? let x = 10; console.log(x != 10);

true

false

10

error

Answer explanation

The code checks if x (10) is not equal to 10 using the '!=' operator. Since 10 is equal to 10, the expression evaluates to false. Therefore, the output is false.

5.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Nora has 5 apples and she knows that 5 is greater than 3. She also has 8 oranges and knows that 8 is less than 10. What will console.log(5 > 3 && 8 < 10); print?

true

false

5

8

Answer explanation

The expression '5 > 3' evaluates to true and '8 < 10' also evaluates to true. The '&&' operator requires both conditions to be true, so 'true && true' results in true. Therefore, console.log(5 > 3 && 8 < 10) prints true.

6.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Fill in the blank: In JavaScript, the expression 5 > 3 && 8 < 10 evaluates to ____.

true

false

5

8

Answer explanation

The expression 5 > 3 evaluates to true and 8 < 10 also evaluates to true. Since both conditions are true, the entire expression 5 > 3 && 8 < 10 evaluates to true.

7.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Isla is writing a JavaScript program to check if a user is logged in. Fill in the blank: The correct syntax for an if statement in JavaScript is ____.

A) if condition then {}

B) if (condition) {}

C) if {condition}

D) if condition {}

Answer explanation

The correct syntax for an if statement in JavaScript is B) if (condition) {}. This format uses parentheses to enclose the condition and curly braces to define the block of code that executes if the condition is true.

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