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A Little Piece Of Science Trivia Quiz

For those of you who actually listened in engineering classes.

A multiple-choice quiz by Tristan.. Estimated time: 4 mins.

Author
Tristan.

Time
4 mins

Type
Multiple Choice

Quiz #
9,020

Updated
Dec 03 21

# Qns
10

Difficulty
Tough

Avg Score
6 / 10

Plays
3961

One at a Time - Single Page - Timed Game

Question 1 of 10

1. Which of the following is not a factor in the resistance of a piece of copper wire? Hint

Length

Cross Sectional Area

Mass

Temperature

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Question 2 of 10

2. Cu is the chemical symbol for Copper.

True

False

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Question 3 of 10

3. The mechanical advantage of a machine is the ratio of the force exerted by a machine to the force exerted on the machine.

True

False

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Question 4 of 10

4. Kinetic energy is calculated using which two variables? Hint

Mass and Velocity

Mass and Height

Meat and Veggies

Mass and Acceleration

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Question 5 of 10

5. Apart from resistance, what is a retarding factor in an alternating current circuit? Hint

Reluctance

Laziness

Power Factor

Reactance

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Question 6 of 10

6. What is the name of the device used to measure static charge? Hint

Spectrometer

Electroscope

Electrograph

Bling-Blingometer

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Question 7 of 10

7. The tendency of a spinning body to rotate in an ellipse in the same sense as its rotation is called....? Hint

Precession

Tipsiness

Rotational Turning

Rotational Bias

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Question 8 of 10

8. Capacitive reactance improves the power factor of an inductive AC circuit.

True

False

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Question 9 of 10

9. Hyper-eutectic steels have greater than, or less than 0.83 percent carbon content? Hint

Greater than 0.83 percent

0.83 percent exactly

Less the 0.83 percent

0.0 percent cabon content

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Question 10 of 10

10. What is 'u' in the equation s = ut + 0.5 x a x t(squared)? Hint

Displacement

Final Velocity

Initial Velocity

Ugh!

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Quiz Answer Key and Fun Facts

1. Which of the following is not a factor in the resistance of a piece of copper wire?

Answer: Mass

The Mass of a piece of copper wire is irrelevant to its resistance.

2. Cu is the chemical symbol for Copper.

Answer: True

The chemical symbol for copper is Cu.

3. The mechanical advantage of a machine is the ratio of the force exerted by a machine to the force exerted on the machine.

Answer: True

It is indeed the ratio of OUTPUT to INPUT.

4. Kinetic energy is calculated using which two variables?

Answer: Mass and Velocity

Mass multiplied by velocity squared is the equation for kinetic energy. Mass multiplied by acceleration due to gravity is the equation for force. Mass multiplied by height multiplied by acceleration is potential energy. Meat plus veggies is the equation for dinner.

5. Apart from resistance, what is a retarding factor in an alternating current circuit?

Answer: Reactance

The impedance of an AC circuit is the sum of the resistance and the net reactance, i.e. capacitive reactance - inductive reactance = net reactance.

6. What is the name of the device used to measure static charge?

Answer: Electroscope

The Spectrometer is a device used to differentiate between chemical elements, and the other two I just made up.

7. The tendency of a spinning body to rotate in an ellipse in the same sense as its rotation is called....?

Answer: Precession

If you spin a spinning top, you will notice this effect. If it is spun in a clockwise direction, then the top will spin around its axis in a clockwise direction, slowly at first, and as angular velocity slows down, the precession will increase.

8. Capacitive reactance improves the power factor of an inductive AC circuit.

Answer: True

Inductive reactance decreases power factor.

9. Hyper-eutectic steels have greater than, or less than 0.83 percent carbon content?

Answer: Greater than 0.83 percent

The eutectic point on an iron-carbon equillibrium diagram is the point where only pearlite exists in the micro structure, which is at 0.83 percent carbon content.

10. What is 'u' in the equation s = ut + 0.5 x a x t(squared)?

Answer: Initial Velocity

The 's' is actually the value of displacement. This equation is useful in calculating displacement of a moving body, when actual measurement is not viable i.e very very long distances.

Source: Author Tristan.

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