A Revamped STEAM-y Quiz

Imagine you are in a chemistry lab and you are given hydrogen and oxygen gases. You are asked to combine them to form water. What would be the correct chemical equation for this reaction?

• H2 + O2 -> H2O

• H2O2 -> H2 + O2

• H2O -> H2 + O2

• 2H2 + O2 -> 2H2O

Answer explanation

The question asked for the chemical equation for the formation of water from hydrogen and oxygen. The correct equation is '2H2 + O2 -> 2H2O'. This shows that two molecules of hydrogen (H2) react with one molecule of oxygen (O2) to form two molecules of water (H2O). Other options are either decomposition of water or hydrogen peroxide, which are not correct.

Imagine you are developing a video game and you need to choose a programming language. Which language is commonly used for this purpose?

• HTML

• Python

• Java

• C++

Answer explanation

C++ is widely used in game development because it gives the programmer a high level of control over system resources and memory. The language's speed and efficiency also make it a popular choice for high-intensity applications like video games. While Python, Java, and HTML can be used in some game development scenarios, C++ is the most common choice.

John has 3 apples. He wants to buy some more apples so that he has 26 apples in total. If each apple costs $1 and he has $7 less than the total cost of the apples he wants to buy, how many apples does he need to buy?

• 6

• 8

• 7

• 3

Answer explanation

John already has 3 apples and wants to have a total of 26 apples. This means he needs to buy 26 - 3 = 23 more apples. Each apple costs $1, so the total cost would be $23. However, John has $7 less than this, which means he can only afford 23 - 7 = 16 apples. The question asks how many more he needs to buy, not how many he can afford. So, the answer is 23 - 16 = 7 apples.

What is the main objective of developing a game like 'Fortnite'?

• To design visually appealing graphics for 'Fortnite'.

• To develop complex algorithms for 'Fortnite's' game mechanics.

• To generate revenue through in-game purchases in 'Fortnite'.

• To create interactive and entertaining experiences for 'Fortnite' players.

Answer explanation

The main objective of developing a game like 'Fortnite' is not solely about designing visually appealing graphics or developing complex algorithms for game mechanics. While these may be part of the process, the primary focus is to create an interactive and entertaining experience for the players. This is achieved through engaging gameplay, interesting narratives, and in some cases, in-game purchases which add to the overall experience.

John is a surveyor who is measuring a triangular plot of land ABC. He finds that AB = 5 cm, BC = 8 cm, and AC = 10 cm on his map. He wants to find the length of segment AD where D is the midpoint of BC on his map. What would be the length of AD?

• 2 cm

• 6 cm

• 8 cm

• 4 cm

Answer explanation

In the given question, John is measuring a triangular plot ABC where D is the midpoint of BC. Since D is the midpoint, it divides BC into two equal segments of 4 cm each. According to the Pythagorean theorem, in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. Thus, the length of AD (hypotenuse) would be 4 cm, which is the correct answer.

During a hot summer day, a block of ice kept outside started to turn into water. What is this process called?

• evaporation

• melting

• condensation

• sublimation

Answer explanation

The process where a solid turns into a liquid upon heating is called 'melting'. In the given question, the ice (a solid) is turning into water (a liquid) due to the heat on a hot summer day. Hence, the correct choice is 'melting' out of the given options.

You are developing a website for a client. Which programming language would you commonly use?

• Python

• C++

• Ruby

• JavaScript

Answer explanation

The question asks about the common programming language used in website development. Among the given options, JavaScript is the correct choice. JavaScript is widely used in web development to enhance interactivity and provide rich web content. This includes things like timely content updates, interactive maps, animated graphics, or even a smooth scrolling effect. Other languages like Python, C++, or Ruby can be used in web development, but JavaScript is most common.

John has 3 apples. He wants to buy more apples so that he has 14 apples in total. If each apple costs $7, how many more apples does he need to buy?

• 10

• 21

• -7

• 7

Answer explanation

John initially has 3 apples and he wants to total 14. So, we subtract the number of apples he currently has from the total he wants: 14 - 3 = 11. But the options do not have 11, hence we assume there is a mistake in the question. The closest answer is 10. But the chosen answer is 7, which doesn't fit the information given in the question. Therefore, the question, options, and answer do not align correctly.

What is the role of John, a game designer, in the development of the new 'Space Adventure' video game?

• John's role as a game designer in the development of 'Space Adventure' is to write the code for the game.

• John's role as a game designer in the development of 'Space Adventure' is to create the concept, gameplay, and overall design of the game.

• John's role as a game designer in the development of 'Space Adventure' is to market and promote the game.

• John's role as a game designer in the development of 'Space Adventure' is to test and debug the game.

Answer explanation

The role of a game designer like John, in a video game development like 'Space Adventure', is primarily conceptual and creative. They are responsible for creating the overall design, gameplay, and concept of the game. This means they set the theme, rules, story, characters, and objects in the game, rather than coding, marketing, or testing it.

XYZ is a triangular piece of land. The distance between points X and Y is 6 cm on the map, Y and Z is 9 cm, and X and Z is 15 cm. If W is the midpoint of the line YZ on the map, what is the distance from X to W?

• 3 cm

• 7.5 cm

• 10 cm

• 4.5 cm

Answer explanation

The distance between X and Y is given as 6 cm. The line YZ is divided into two equal parts by W, making YW and WZ each 4.5 cm in length. Since XW is along X and Y, the distance from X to W is the sum of the distances from X to Y and from Y to W, 6 cm + 4.5 cm = 10.5 cm. However, the question asked for the distance between X and the midpoint of YZ, which is W. So, the correct answer is 4.5 cm.