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Perfect, Prefect Trivia Quiz

Meet Rex, a 9 year old boy. One day his teacher set a science test and in the test Rex scored 100%. The teacher then called him 'Perfect, Prefect!'. Let us now see if you would have been a perfect prefect in that science test. Enjoy!

A multiple-choice quiz by LoveAnimals555. Estimated time: 2 mins.

Author
LoveAnimals555

Time
2 mins

Type
Multiple Choice

Quiz #
393,519

Updated
Feb 03 23

# Qns
10

Difficulty
Easy

Avg Score
8 / 10

Plays
528

One at a Time - Single Page - Timed Game

Question 1 of 10

1. Which planet in our solar system is referred to as 'the red planet'? Hint

Jupiter

Venus

Mars

Mercury

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Question 2 of 10

2. Which of the following organs is used in breathing? Hint

Kidney

Lungs

Heart

Brain

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Question 3 of 10

3. Which of the following gases is most essential for our life? Hint

Oxygen

Helium

Carbon dioxide

Hydrogen

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Question 4 of 10

4. Which of the following is a unit of pressure? Hint

Newton

Faraday

Hertz

Pascal

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Question 5 of 10

5. Which of the following elements is present in sulphuric acid? Hint

All three of these elements are present in sulphuric acid

Sulphur

Hydrogen

Oxygen

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Question 6 of 10

6. Which of the following celestial objects is nearest to Earth? Hint

Venus

Sun

Jupiter

Moon

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Question 7 of 10

7. Which of the following is a bone in our middle ear? Hint

Femur

Malleus

Tibia

Radius

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Question 8 of 10

8. Which of the following is an insect? Hint

Spider

Octopus

Snail

Grasshopper

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Question 9 of 10

9. What is the speed (in meters per second, m/s) of an object if it travels 100 meters in 50 seconds? Hint

4 m/s

8 m/s

6 m/s

2 m/s

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Question 10 of 10

10. Which of the following compounds is basic in nature? Hint

H3PO4

HCl

KOH

H2CO3

Quiz Answer Key and Fun Facts

1. Which planet in our solar system is referred to as 'the red planet'?

Answer: Mars

Mars is the fourth planet from the sun. Mars is called as 'the red planet' due to the reddish appearance of iron oxide on its surface.

Mars is the second smallest planet after Mercury.

2. Which of the following organs is used in breathing?

Answer: Lungs

We have a pair of lungs that are used in breathing. Lungs are located in the region of thorax, protected within the rib cage. We breathe in a mixture of gases. One of the gases we breathe out is carbon dioxide.

3. Which of the following gases is most essential for our life?

Answer: Oxygen

Oxygen gas (O2) is most important for our survival as we respire with the help of oxygen.

The molecular weight of oxygen gas (O2) is 32 amu (amu = atomic mass unit).

4. Which of the following is a unit of pressure?

Answer: Pascal

Newton is the unit of force, hertz is the unit of frequency while faraday is the unit of capacitance.

All the four units mentioned in the options are named after famous scientists.

5. Which of the following elements is present in sulphuric acid?

Answer: All three of these elements are present in sulphuric acid

Sulphuric acid is a strong inorganic acid. The molecular formula of sulphuric acid is H2SO4. So, you may easily conclude now that all the three elements- hydrogen, oxygen and sulphur are present in it.

The molecular weight of sulphuric acid is 98 amu.

6. Which of the following celestial objects is nearest to Earth?

Answer: Moon

The order of distance of the listed celestial objects from Earth is as follows:

Moon (nearest to Earth), followed by Venus, the Sun and then Jupiter (furthest from Earth).

7. Which of the following is a bone in our middle ear?

Answer: Malleus

The middle ear consists of three bones which are the malleus, incus and stapes.

The femur is the thigh bone. The tibia is a bone located in the lower leg while the radius is a bone present in our forearm.

8. Which of the following is an insect?

Answer: Grasshopper

Insects are animals which have three pair of jointed legs.

Spiders are arachnids while both snails and octopuses are molluscs.

9. What is the speed (in meters per second, m/s) of an object if it travels 100 meters in 50 seconds?

Answer: 2 m/s

Speed is basically the measure of how fast an object moves.

Speed of a body = Distance covered by the body/ time taken by the body to cover that distance.

So, speed of the object in the question = 100 m/ 50 s = 2 m/s.

10. Which of the following compounds is basic in nature?

Answer: KOH

Bases are basically the substances that release hydroxide ions in aqueous solution.

So in the preceding options only KOH releases OH- (or hydroxide ion) in aqueous solution.

Of the rest, HCl (hydrochloric acid), H2CO3 (carbonic acid) and H3PO4 (phosphoric acid) are acids as they release H+ ions in aqueous solution.

Source: Author LoveAnimals555

This quiz was reviewed by FunTrivia editor NatalieW before going online.
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