Algorithms and Problem Solving Quizzes for Year 2 Computing Students

Question 1

What step is missing from this algorithm for making a peanut butter and jelly sandwich: Get two pieces of bread, spread peanut butter on one piece, and spread jelly on the other?

Accepted Answer

Close the sandwich together

Answer

Eat the sandwich

Answer

Put the sandwich in the fridge

Answer

Cut the sandwich into triangles

Question 2

You want to organize your bookshelf with all the books facing you. Some of them are facing the wrong way. What is the most important question to ask to help you solve this problem?

Accepted Answer

How many books are facing the wrong way?

Answer

What color is the bookshelf?

Answer

Who put the books on the shelf?

Question 3

How do we use the base and height of a triangle to find its area using an algorithm?

Accepted Answer

Multiply the base and height, then divide by 2.

Answer

Give the algorithm the area and it will calculate the base and height.

Answer

Give the algorithm the perimeter and it will calculate the area.

Question 4

What step is NOT part of making a sandwich?

Accepted Answer

Brush your teeth

Answer

Get bread

Answer

Spread butter on bread

Answer

Eat the sandwich

Question 5

When solving a problem using an algorithm, which of these is NOT a necessary step?

Accepted Answer

Drawing a picture of the steps

Answer

Breaking the problem into smaller steps

Answer

Following the steps to find the answer

Question 6

When solving a problem, what should you do first?

Accepted Answer

Understand the problem

Answer

Write the code

Question 7

When solving a problem using an algorithm, what's the first step?

Accepted Answer

Understand the problem

Answer

Create an algorithm

Answer

Test the algorithm

Answer

Correct any errors

Question 8

What is an example of an algorithm?

Accepted Answer

A recipe for making a cake

Answer

A picture of a tree

Answer

A song

Answer

A puzzle

Question 9

When using an algorithm to solve a problem, which of these is NOT a necessary step?

Accepted Answer

Eating a banana

Answer

Understanding the problem

Answer

Writing an algorithm

Answer

Testing the algorithm

Question 10

What are the steps you follow to solve a problem called?

Accepted Answer

An algorithm

Answer

A code

Answer

A thought

Question 11

When creating an algorithm, which of these is NOT a necessary step?

Accepted Answer

Writing the algorithm in a programming language

Answer

Understanding the problem

Answer

Making a step-by-step plan

Answer

Testing the algorithm

Question 12

What's the first step when creating an algorithm?

Accepted Answer

Understand the problem

Answer

Write the code

Answer

Test the algorithm

Question 13

What is a set of instructions that a computer can follow?

Accepted Answer

An algorithm

Answer

A story

Answer

A song

Answer

A painting

Question 14

What is an example of an algorithm?

Accepted Answer

A recipe for making a peanut butter and jelly sandwich

Answer

A shopping list for a cake

Answer

A story about a boy going to the store

Answer

A picture of a landscape

Question 15

Which of these is NOT a way to solve a problem using steps?

Accepted Answer

Choosing steps randomly

Answer

Following steps in order

Answer

Repeating steps

Answer

Using steps that call themselves

Question 16

When creating an algorithm, which of these is NOT a necessary step?

Accepted Answer

Having a tea party

Answer

Understanding the problem

Answer

Planning the steps to solve the problem

Answer

Testing the algorithm

Question 17

Which of these is NOT a type of algorithm that computers can use?

Accepted Answer

Algorithms that do not follow a specific set of instructions

Answer

Algorithms that follow a set of instructions in order

Answer

Algorithms that run on multiple computers at the same time

Answer

Algorithms that divide a problem into smaller problems to solve it

Question 18

Which of these is not a type of algorithm?

Accepted Answer

Random

Answer

Sequential

Answer

Iterative

Answer

Recursive

Question 19

When creating an algorithm, which of these is NOT a step we take?

Accepted Answer

Writing our algorithm in a coding language

Answer

Finding a solution to a problem

Answer

Testing our algorithm

Question 20

Before using an algorithm to solve a problem, what's the first step you should take?

Accepted Answer

Understand the problem

Answer

Write the algorithm

Answer

Test the algorithm

Question 21

When solving a problem using an algorithm, what should you do first?

Accepted Answer

Understand the problem

Answer

Run the algorithm

Answer

Design the algorithm

Answer

Test the algorithm

Question 22

Which of these is not a type of algorithm?

Accepted Answer

Diagram

Answer

Sequential

Answer

Concurrent

Answer

Recursive

Question 23

What is the best definition of an algorithm?

Accepted Answer

A step-by-step plan to solve a problem.

Answer

A computer program that runs on a computer.

Answer

A tool that helps you find answers.

Answer

A language that computers use to talk to each other.

Question 24

What is the meaning of an algorithm?

Accepted Answer

A list of steps that a computer follows to complete a task.

Answer

A type of video game.

Answer

A way to save images on a computer.

Question 25

What is a good example of an algorithm?

Accepted Answer

A recipe for baking a cake

Answer

A list of numbers

Answer

A picture of a flower

Answer

A song

Question 26

When creating an algorithm, what's the first thing you should do?

Accepted Answer

Break the problem into smaller steps

Answer

Write the algorithm in a programming language

Answer

Draw a flowchart

Answer

Test the algorithm

Question 27

When creating a plan to solve a problem, which step is not included?

Accepted Answer

Coming up with the solution right away

Answer

Understanding the problem

Answer

Breaking the problem into smaller parts

Answer

Testing the solution

Question 28

When you want to solve a problem with a computer, what is the first thing you need to do?

Accepted Answer

Understand the problem

Answer

Write the instructions for the computer

Answer

Test the instructions

Question 29

When you're writing instructions for a computer, what should you do?

Accepted Answer

Use clear and simple words

Answer

Use long and complicated words

Answer

Write as much as you can

Question 30

What symbol do we use to show a decision point in an algorithm?

Accepted Answer

?

Answer

{ }

Answer

>

Question 31

What are the two main types of algorithms?

Accepted Answer

Sequential and iterative

Answer

Big and small

Answer

Old and new

Question 32

What is the difference between an input and an output in an algorithm?

Accepted Answer

An input is used by the algorithm, an output is made by the algorithm

Answer

An input is made by the algorithm, an output is used by the algorithm

Answer

Inputs and outputs are the same thing

Question 33

Can you use an algorithm to solve real-world problems?

Accepted Answer

Yes, like finding the shortest way somewhere

Answer

No, they can only be used for school work

Answer

I don't know

Question 34

Which of these is **NOT** a step you take when solving a problem?

Accepted Answer

Eat a snack

Answer

Understand the problem

Answer

Break the problem into smaller parts

Answer

Test the solution

Question 35

In an algorithm, what is a rule?

Accepted Answer

A step that tells the computer what to do

Answer

A list of all the possible answers to the problem

Answer

A way to check if the answer is correct

Answer

A type of dance move

Question 36

Which of these is an example of pattern recognition?

Accepted Answer

Noticing that the numbers in a sequence are increasing by 2

Answer

Finding the sum of two numbers

Answer

Drawing a picture of a cat

Answer

Singing a song

Question 37

What is the first step in breaking down a problem?

Accepted Answer

Breaking the problem into smaller parts

Answer

Finding the answer to the problem

Answer

Testing the answer

Answer

Eating a snack

Question 38

Why is it important to test a solution?

Accepted Answer

To make sure it works correctly

Answer

To find out if it is the best answer

Answer

To make the answer more efficient

Answer

To eat a snack

Question 39

What is the difference between an algorithm and a program?

Accepted Answer

An algorithm is a set of instructions, while a program is a specific way of doing those instructions.

Answer

An algorithm is a program, while a program is an algorithm.

Answer

There is no difference between an algorithm and a program.

Answer

An algorithm is a banana, while a program is an apple.

Question 40

What is a flowchart?

Accepted Answer

A diagram that shows the steps of an algorithm

Answer

A type of programming language

Answer

A tool for testing answers

Answer

A type of fruit

Question 41

When solving a problem, what should we NOT do?

Accepted Answer

Use a random approach

Answer

Break the problem into smaller steps

Answer

Think carefully about the problem

Answer

Test the solution

Question 42

When we break a problem into smaller parts, what is this called?

Accepted Answer

Decomposition

Answer

Simplification

Answer

Minimization

Answer

Analysis

Question 43

When you want to solve a problem, what should you do first?

Accepted Answer

Identify the problem

Answer

Break the problem into smaller parts

Answer

Find a solution to the problem

Answer

Check if the solution works

Question 44

What do we mean when we talk about seeing patterns?

Accepted Answer

Noticing how things are similar or different

Answer

Breaking things down into smaller parts

Answer

Creating a plan to solve a problem

Answer

Checking if a solution works

Question 45

Which of these is NOT a good thing about using a set of steps to solve a problem?

Accepted Answer

It can make us more creative

Answer

It can make solving problems faster

Answer

It can help us be more accurate

Answer

It can make solving problems easier

Question 46

Which of these is NOT a skill we use when solving problems with computers?

Accepted Answer

Remembering lots of information

Answer

Thinking about the problem in a different way

Answer

Breaking the problem down into smaller parts

Answer

Seeing patterns

Question 47

First step in solving a problem using an algorithm?

Accepted Answer

Breaking down the problem

Answer

Testing the algorithm

Answer

Writing the algorithm

Answer

Finding the pattern

Question 48

What does a loop do in an algorithm?

Accepted Answer

Repeat instructions multiple times

Answer

Skip certain instructions

Answer

Store information

Answer

Make decisions

Question 49

What is NOT a feature of an effective algorithm?

Accepted Answer

Difficult to understand

Answer

Clear and easy to follow

Answer

Efficient

Answer

Accurate

Question 50

What's the distinction between an algorithm and a flowchart?

Accepted Answer

An algorithm is instructions, while a flowchart is a visual representation of the algorithm.

Answer

An algorithm is a flowchart, while a flowchart is an algorithm.

Answer

There's no difference between an algorithm and a flowchart.

Answer

A flowchart is instructions, while an algorithm is a visual representation of a flowchart.

Question 51

What is the purpose of a variable in an algorithm?

Accepted Answer

To store information

Answer

To make decisions

Answer

To control the flow of the algorithm

Answer

To perform calculations

Question 52

What steps are involved in solving a problem?

Accepted Answer

Identify the problem, Develop an algorithm, and Test the algorithm

Answer

Eat a sandwich, Develop an algorithm, and Solve the problem

Answer

Identify the problem, Solve the problem, and Test the algorithm

Answer

Develop an algorithm, Test the algorithm, and Solve the problem

Question 53

What's the definition of an algorithm?

Accepted Answer

A set of instructions for solving a problem

Answer

A type of computer program

Answer

A secret code

Answer

A kind of animal

Question 54

What's an example of how we can break down a big problem into smaller ones?

Accepted Answer

Decomposition

Answer

Solving the problem all at once

Answer

Guessing and checking

Answer

Ignoring the problem

Question 55

What does pattern recognition mean?

Accepted Answer

Finding a pattern in a set of information

Answer

Predicting the future

Answer

Understanding the meaning of life

Answer

Making a sandwich

Question 56

Which of these are types of algorithms?

Accepted Answer

Sequential, Conditional, and Recursive

Answer

Fast, Slow, and Medium

Answer

Easy, Hard, and Impossible

Answer

Big, Small, and Medium

Question 57

Why do we test algorithms?

Accepted Answer

To make sure they work correctly

Answer

To make them faster

Answer

To make them look pretty

Answer

To make them easier to understand

Question 58

Can you give me an example of an algorithm in real life?

Accepted Answer

Cooking a meal, Driving a car, or Playing a game

Answer

Watching a movie, Reading a book, or Taking a nap

Answer

Eating a snack, Sleeping, or Going to school

Answer

Talking to a friend, Listening to music, or Playing with a pet

Question 59

When solving a problem with an algorithm, what should you do first?

Accepted Answer

Break the problem into smaller parts.

Answer

Write the algorithm in a programming language.

Answer

Test the algorithm to make sure it works.

Answer

Find a computer to run the algorithm on.

Question 60

Which of these is NOT a type of algorithm we've covered in class?

Accepted Answer

Algorithms that don't follow a specific order or pattern

Answer

Algorithms that follow a set order

Answer

Algorithms that repeat steps until a condition is met

Answer

Algorithms that call themselves repeatedly to solve a problem

Question 61

Which of these is NOT a type of algorithm?

Accepted Answer

Random

Answer

Sequential

Answer

Parallel

Answer

Concurrent

Question 62

What is the purpose of a flowchart?

Accepted Answer

To show an algorithm in a visual way

Answer

To make code

Answer

To test the solution

Answer

To find errors

Question 63

A loop in an algorithm is...

Accepted Answer

A sequence of steps that are repeated

Answer

A conditional statement

Answer

An input statement

Answer

An output statement

Question 64

The difference between an algorithm and a program is that a(n):

Accepted Answer

Algorithm is abstract, while a program is specific

Answer

Program is abstract, while an algorithm is specific

Answer

There is no difference

Answer

Algorithm is written in code, while a program is not