Grade 6 Online Science Quiz Chapter: Electricity and Circuits

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| By Sahiba Angel

Sahiba Angel

Community Contributor

Quizzes Created: 1 | Total Attempts: 2,745

Questions: 5 | Attempts: 2,749 | Updated: Nov 8, 2024

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Questions and Answers

1.

Who invented the light bulb?
- A.
  
  Thomas Jefferson
- B.
  
  Thomas Edison
- C.
  
  Albert Einstein
- D.
  
  Benjamin Franklin
Correct Answer
B. Thomas Edison

Explanation
The most famous and widely recognized inventor of the practical incandescent light bulb is Thomas Edison. Edison's version of the incandescent light bulb was patented in 1879 and became the basis for the widespread commercialization and use of electric lighting.

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3
2.

Which gas is filled inside an electric bulb?
- A.
  
  Oxygen
- B.
  
  Carbon dioxide
- C.
  
  Argon
- D.
  
  Sulfur
Correct Answer
C. Argon

Explanation
Argon is filled inside an electric bulb. Argon is an inert gas that is commonly used in incandescent light bulbs. It helps to prevent the filament from oxidizing and burning out quickly. Argon also helps to improve the overall efficiency and lifespan of the bulb.

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3.

When was the light bulb invented?
- A.
  
  1859
- B.
  
  1869
- C.
  
  1879
- D.
  
  1889
Correct Answer
C. 1879

Explanation
The light bulb was invented in 1879.

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5
1
4.

Why is tungsten a good metal to use for the light bulb filament?
- A.
  
  Its high melting point
- B.
  
  Its flexibility
- C.
  
  Its low cost
- D.
  
  None of these
Correct Answer
A. Its high melting point

Explanation
Tungsten is a good metal to use for the light bulb filament because of its high melting point. The filament in a light bulb needs to reach extremely high temperatures in order to produce light. Tungsten has one of the highest melting points of all metals, allowing it to withstand the intense heat generated by the electric current passing through it. This makes tungsten an ideal choice for light bulb filaments as it can maintain its structural integrity and continue to emit light for a longer period of time compared to other metals.

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5.

Ammy’s mother is replacing an old light bulb. The new light bulb uses less energy. Why is this a good thing?
- A.
  
  The new light bulb will cost less to run
- B.
  
  The new light bulb is a funny shape
- C.
  
  The new light bulb is a brighter colour
- D.
  
  The new light bulb will use more energy
Correct Answer
A. The new light bulb will cost less to run

Explanation
The new light bulb will cost less to run because it uses less energy. This means that Ammy's mother will have to pay less for electricity bills, resulting in cost savings. Additionally, using less energy is also beneficial for the environment as it reduces overall energy consumption and carbon emissions.

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Current Version
Nov 08, 2024

Quiz Edited by
ProProfs Editorial Team
May 10, 2020

Quiz Created by
Sahiba Angel

Grade 6 Online Science Quiz Chapter: Electricity And Circuits

Who invented the light bulb?

Which gas is filled inside an electric bulb?

When was the light bulb invented?

Why is tungsten a good metal to use for the light bulb filament?

Ammy’s mother is replacing an old light bulb. The new light bulb uses less energy. Why is this a good thing?