Algorithms and Programs Quiz for Grade 7

📚 Quick Study Guide

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• An algorithm is a step-by-step set of instructions to solve a problem.
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• A program is an algorithm written in a language that a computer can understand.
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• Sequence means instructions are executed in the order they are written.
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• Selection (if/else) allows the program to make decisions based on conditions.
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• Iteration (loops) allows the program to repeat a set of instructions.
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• Variables are used to store data that can change during program execution.
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• Operators are symbols that perform operations on variables and values (e.g., +, -, *, /).

Practice Quiz

1. What is an algorithm?
   1. A type of computer.
   2. A step-by-step set of instructions to solve a problem.
   3. A programming language.
   4. A website.
2. Which of the following is an example of selection in a program?
   1. Repeating a set of instructions.
   2. Adding two numbers together.
   3. Making a decision based on a condition (if/else).
   4. Printing text to the screen.
3. What is iteration in programming?
   1. Executing instructions in order.
   2. Repeating a set of instructions.
   3. Storing data in a variable.
   4. Making a decision.
4. What is a variable used for in programming?
   1. To perform calculations.
   2. To display images.
   3. To store data that can change.
   4. To control the computer's hardware.
5. Which of the following is an example of an operator?
   1. if
   2. loop
   3. variable
   4. +
6. What does 'sequence' mean in programming?
   1. Instructions are executed randomly.
   2. Instructions are executed in the order they are written.
   3. Instructions are repeated.
   4. Instructions are skipped.
7. Which of the following is the best example of a program?
   1. A written recipe for baking a cake.
   2. A set of instructions for assembling furniture.
   3. An algorithm written in Python to calculate the area of a rectangle.
   4. A list of ingredients for a salad.