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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
Nov 15 24

# Qns
10

Difficulty
Tough

Avg Score
6 / 10

Plays
3966

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

Cross Sectional Area

Mass

Temperature

Length

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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

Meat and Veggies

Mass and Velocity

Mass and Height

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

Reactance

Power Factor

Reluctance

Laziness

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Question 6 of 10

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

Electroscope

Electrograph

Spectrometer

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

Rotational Turning

Rotational Bias

Tipsiness

Precession

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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

0.0 percent cabon content

Less the 0.83 percent

Greater than 0.83 percent

0.83 percent exactly

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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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Most Recent Scores

Nov 15 2024 : jonnowales: 9/10
Nov 01 2024 : GoodVibe: 6/10

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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

The equation for kinetic energy is half the mass multiplied by the square of the velocity. Mass multiplied by acceleration is an equation for force. Mass multiplied by acceleration due to gravity multiplied by height is an expression of gravitational 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 equilibrium 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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