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2
0
Z
Ziba Salma
05/09/2025
Chemistry
Revision notes
27
•
5 Sept 2025
•
Super Easy Electric Circuit Revision Notes for Kids
Z
Ziba Salma
@zibasalma_lxht
Smart Tools NEW
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Potential Difference and Circuit Behavior
This page delves into the concept of potential difference and its role in electrical circuits.
Definition: Potential difference is described as a force that pushes charge around a circuit. It is also defined as the energy transferred per coulomb of charge.
The unit of potential difference is Volts (V).
The page explains how potential difference behaves in different circuit configurations:
- In series circuits, the potential difference is shared among components
- In parallel circuits, the potential difference is the same across all branches
Vocabulary: The term "pd" is used as an abbreviation for potential difference.
The relationship between potential difference, energy transferred, and charge moved is expressed through the equation:
Potential difference = Energy transferred / Charge moved
Highlight: The page emphasizes the use of voltmeters for measuring potential difference in circuits. It notes that voltmeters are connected in parallel with the component being measured.
The page includes a diagram illustrating the measurement of potential difference across a bulb in a simple circuit. This visual aid helps students understand the practical application of voltmeters in circuit analysis.
Example: Although not explicitly stated, the diagram shows a circuit with a 6V battery and a bulb. This setup can be used to demonstrate how to measure the potential difference across the bulb using a voltmeter.
This section of the notes is crucial for understanding current and potential difference in circuits, as it complements the earlier discussion on current by introducing the concept that drives charge movement in electrical systems.
Circuit Symbols and Current
This page introduces fundamental concepts of electrical circuits, focusing on circuit symbols and current.
The page begins by presenting common circuit symbols, including resistors, batteries, switches, and ammeters. These symbols are essential for reading and drawing circuit diagrams.
Definition: Current is defined as the rate of flow of electrical charge.
The relationship between current, charge, and time is expressed through the equation:
Current = Charge / Time
Vocabulary:
- Current is measured in Amperes (Amps)
- Charge is measured in Coulombs
- Time is measured in seconds
The page explains how current behaves in different circuit configurations:
- In series circuits, the charge remains the same throughout
- In parallel circuits, the charge is shared among branches
An important note emphasizes that wires must touch for a circuit to function properly.
Example: The page provides a practical example of calculating charge. If a battery passes a current of 0.25 A through a light bulb for 4 hours, the total charge can be calculated as follows:
- Convert time to seconds: 4 hours = 4 x 60 x 60 = 14,400 seconds
- Apply the formula: Charge = Current x Time
- Charge = 0.25 A x 14,400 s = 3,600 Coulombs
This example demonstrates how to measure electrical charge and current in a real-world scenario.
Highlight: The page emphasizes the importance of using the correct equipment for measurements, specifically mentioning ammeters for measuring current.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
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This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
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Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Super Easy Electric Circuit Revision Notes for Kids
Z
Ziba Salma
@zibasalma_lxht
Electric circuit revision notes for students: This guide covers key concepts in electrical circuits, including current, charge, and potential difference. It provides essential formulas, circuit symbols, and measurement techniques for understanding current and potential difference in circuits.
- Explains... Show more
Potential Difference and Circuit Behavior
This page delves into the concept of potential difference and its role in electrical circuits.
Definition: Potential difference is described as a force that pushes charge around a circuit. It is also defined as the energy transferred per coulomb of charge.
The unit of potential difference is Volts (V).
The page explains how potential difference behaves in different circuit configurations:
- In series circuits, the potential difference is shared among components
- In parallel circuits, the potential difference is the same across all branches
Vocabulary: The term "pd" is used as an abbreviation for potential difference.
The relationship between potential difference, energy transferred, and charge moved is expressed through the equation:
Potential difference = Energy transferred / Charge moved
Highlight: The page emphasizes the use of voltmeters for measuring potential difference in circuits. It notes that voltmeters are connected in parallel with the component being measured.
The page includes a diagram illustrating the measurement of potential difference across a bulb in a simple circuit. This visual aid helps students understand the practical application of voltmeters in circuit analysis.
Example: Although not explicitly stated, the diagram shows a circuit with a 6V battery and a bulb. This setup can be used to demonstrate how to measure the potential difference across the bulb using a voltmeter.
This section of the notes is crucial for understanding current and potential difference in circuits, as it complements the earlier discussion on current by introducing the concept that drives charge movement in electrical systems.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Circuit Symbols and Current
This page introduces fundamental concepts of electrical circuits, focusing on circuit symbols and current.
The page begins by presenting common circuit symbols, including resistors, batteries, switches, and ammeters. These symbols are essential for reading and drawing circuit diagrams.
Definition: Current is defined as the rate of flow of electrical charge.
The relationship between current, charge, and time is expressed through the equation:
Current = Charge / Time
Vocabulary:
- Current is measured in Amperes (Amps)
- Charge is measured in Coulombs
- Time is measured in seconds
The page explains how current behaves in different circuit configurations:
- In series circuits, the charge remains the same throughout
- In parallel circuits, the charge is shared among branches
An important note emphasizes that wires must touch for a circuit to function properly.
Example: The page provides a practical example of calculating charge. If a battery passes a current of 0.25 A through a light bulb for 4 hours, the total charge can be calculated as follows:
- Convert time to seconds: 4 hours = 4 x 60 x 60 = 14,400 seconds
- Apply the formula: Charge = Current x Time
- Charge = 0.25 A x 14,400 s = 3,600 Coulombs
This example demonstrates how to measure electrical charge and current in a real-world scenario.
Highlight: The page emphasizes the importance of using the correct equipment for measurements, specifically mentioning ammeters for measuring current.
We thought you’d never ask...
What is the Knowunity AI companion?
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
Where can I download the Knowunity app?
You can download the app from Google Play Store and Apple App Store.
Is Knowunity really free of charge?
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
4.9/5
App Store
4.8/5
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user