6 Questions
Which of the following is true about electrical appliances?
Some electrical appliances use cells, some use mains electricity, and some can work on cells or mains.
Why did Edison try 1600 different light bulbs?
To find the best material for making light bulbs.
What can be inferred from the information provided about electric lights?
Electric lights are so good to use because they are bright and last a long time.
Why is it mentioned that some electrical appliances can work on cells or mains?
To emphasize that electrical appliances are versatile and adaptable to different power sources.
What is significant about the number 1600 in relation to Edison's work?
It denotes the number of attempts Edison made before finding the best material for a long-lasting electric light bulb.
What do we learn about electricity usage from the provided text?
Electricity usage varies across different types of electrical appliances and can be both mains-based and cell-based.
Study Notes
Electrical Appliances
- Electrical appliances can operate on cells or mains, indicating their versatility and adaptability.
Thomas Edison's Experiment
- Edison tried 1600 different light bulbs, demonstrating his perseverance and dedication to finding the perfect solution.
- The significance of 1600 lies in the fact that it represents the number of attempts Edison made to perfect his light bulb invention.
Electric Lights
- The development of electric lights implies a significant breakthrough in the field of electrical inventions.
Electricity Usage
- The text highlights the importance of understanding electricity usage, as it is a crucial aspect of modern life.
Test your knowledge about where electricity is used with this interactive quiz. Identify items that use electricity and fill in the table with the correct answers. Perfect for kids learning about electricity and its applications.
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