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Physics gcse energy
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17 Oct 2022
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GCSE Physics Equation Sheet 2024: All the Cool Equations You Need!
Jasmine
@jazzmineloop
Work, Power, and Efficiency
This section delves deeper into the concepts of work, power, and efficiency, providing detailed explanations and practical examples. It emphasizes the relationship between work done and energy transferred, and introduces the concept of power as the rate of energy transfer.
Definition: Work done is equal to energy transferred, expressed by the equation W = F × d .
Example: The page presents a problem involving Jack doing 405 J of work while walking 15 m uphill, demonstrating how to calculate the force exerted.
Highlight: The concept of energy conservation is emphasized, stating that energy is never created or destroyed, only transformed into different forms.
Vocabulary: Sankey diagrams - Visual representations of energy transfer, where the width of arrows is proportional to the amount of energy transferred.
Conduction
This page focuses on the heat transfer mechanism of conduction, explaining the process at the particle level. It describes how heat energy is transferred through materials, particularly in solids, and why certain materials are better conductors than others.
Definition: Conduction is the transfer of heat energy through a material by the vibration of particles.
Highlight: Metals are good conductors due to the presence of free-moving delocalized electrons, which speed up the conduction process.
Example: The page contrasts metals with gases, explaining why gases are poor conductors due to the wide gaps between particles.
Vocabulary: Delocalized electrons - Free-moving electrons in metals that contribute to their high thermal conductivity.
Convection
This section explains the process of convection, another important energy transfer mechanism. It details how heat is transferred in fluids through the movement of particles.
Definition: Convection is the transfer of heat energy in fluids through the movement of heated particles.
Highlight: The page emphasizes that convection occurs due to differences in density between heated and cooler parts of a fluid.
Example: The formation of convection currents is illustrated, showing how less dense, warmer fluid rises while denser, cooler fluid sinks.
Vocabulary: Convection currents - The circular motion of fluid caused by differences in temperature and density.
Radiation
This page covers radiation as the third main energy transfer mechanism. It explains how infrared radiation is emitted by objects and how different materials interact with this form of energy transfer.
Definition: Radiation is the transfer of energy through electromagnetic waves, primarily infrared for heat transfer.
Highlight: The page notes that hot objects emit and absorb more infrared radiation than cold objects.
Example: The document compares black and silver objects, explaining their different properties in emitting, absorbing, and reflecting infrared radiation.
Vocabulary: Infrared radiation - A type of electromagnetic radiation responsible for heat transfer without direct contact.
Evaporation
This section delves into the process of evaporation, explaining the mechanism at the particle level and factors affecting the rate of evaporation. It connects the concept to kinetic energy and temperature.
Definition: Evaporation is the process by which particles with high kinetic energy escape from the surface of a liquid.
Highlight: The page explains how evaporation leads to a decrease in the average kinetic energy of the remaining particles, resulting in a temperature drop.
Example: Factors affecting evaporation are discussed, including surface area, temperature, and humidity.
Vocabulary: Humidity - The amount of water vapor present in the air, which affects the rate of evaporation.
Renewable Energy Sources
The final page provides an overview of various renewable energy sources, explaining how each converts energy from one form to another to generate electricity.
Definition: Renewable energy sources are those that can be replenished naturally and used repeatedly to generate electricity.
Example: The page lists several renewable energy sources, including hydroelectric stations, wind farms, solar cells and panels, tidal and wave power, biomass, and geothermal power.
Highlight: Each energy source is briefly explained in terms of its energy conversion process, such as the conversion of gravitational potential energy to kinetic energy in hydroelectric stations.
Vocabulary: Biomass - Organic matter used as a fuel source for generating electricity.
Energy Stores and Equations
This page introduces the fundamental concepts of energy stores and key GCSE Physics equations. It covers various energy stores such as chemical, kinetic, gravitational, elastic, thermal, magnetic, electrostatic, and nuclear. The page also presents essential equations for calculating kinetic energy, efficiency, thermal energy, elastic potential energy, electrical energy, and gravitational potential energy.
Vocabulary: Specific heat capacity - The amount of energy required to raise the temperature of 1 kg of a substance by 1°C .
Example: The page provides an example of energy transfer in a camping stove, where chemical energy from fuel is converted to thermal energy.
Highlight: The efficiency equation is presented as × 100, which is crucial for understanding energy conservation and transfer.
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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
GCSE Physics Equation Sheet 2024: All the Cool Equations You Need!
Jasmine
@jazzmineloop
The document provides a comprehensive overview of key GCSE Physics equations and energy concepts, covering energy stores, transfers, and calculations. It explores various energy transfer mechanisms, efficiency, and renewable energy sources, making it an essential resource for students preparing for ... Show more
Work, Power, and Efficiency
This section delves deeper into the concepts of work, power, and efficiency, providing detailed explanations and practical examples. It emphasizes the relationship between work done and energy transferred, and introduces the concept of power as the rate of energy transfer.
Definition: Work done is equal to energy transferred, expressed by the equation W = F × d .
Example: The page presents a problem involving Jack doing 405 J of work while walking 15 m uphill, demonstrating how to calculate the force exerted.
Highlight: The concept of energy conservation is emphasized, stating that energy is never created or destroyed, only transformed into different forms.
Vocabulary: Sankey diagrams - Visual representations of energy transfer, where the width of arrows is proportional to the amount of energy transferred.
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
Conduction
This page focuses on the heat transfer mechanism of conduction, explaining the process at the particle level. It describes how heat energy is transferred through materials, particularly in solids, and why certain materials are better conductors than others.
Definition: Conduction is the transfer of heat energy through a material by the vibration of particles.
Highlight: Metals are good conductors due to the presence of free-moving delocalized electrons, which speed up the conduction process.
Example: The page contrasts metals with gases, explaining why gases are poor conductors due to the wide gaps between particles.
Vocabulary: Delocalized electrons - Free-moving electrons in metals that contribute to their high thermal conductivity.
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
Convection
This section explains the process of convection, another important energy transfer mechanism. It details how heat is transferred in fluids through the movement of particles.
Definition: Convection is the transfer of heat energy in fluids through the movement of heated particles.
Highlight: The page emphasizes that convection occurs due to differences in density between heated and cooler parts of a fluid.
Example: The formation of convection currents is illustrated, showing how less dense, warmer fluid rises while denser, cooler fluid sinks.
Vocabulary: Convection currents - The circular motion of fluid caused by differences in temperature and density.
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
Radiation
This page covers radiation as the third main energy transfer mechanism. It explains how infrared radiation is emitted by objects and how different materials interact with this form of energy transfer.
Definition: Radiation is the transfer of energy through electromagnetic waves, primarily infrared for heat transfer.
Highlight: The page notes that hot objects emit and absorb more infrared radiation than cold objects.
Example: The document compares black and silver objects, explaining their different properties in emitting, absorbing, and reflecting infrared radiation.
Vocabulary: Infrared radiation - A type of electromagnetic radiation responsible for heat transfer without direct contact.
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
Evaporation
This section delves into the process of evaporation, explaining the mechanism at the particle level and factors affecting the rate of evaporation. It connects the concept to kinetic energy and temperature.
Definition: Evaporation is the process by which particles with high kinetic energy escape from the surface of a liquid.
Highlight: The page explains how evaporation leads to a decrease in the average kinetic energy of the remaining particles, resulting in a temperature drop.
Example: Factors affecting evaporation are discussed, including surface area, temperature, and humidity.
Vocabulary: Humidity - The amount of water vapor present in the air, which affects the rate of evaporation.
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
Renewable Energy Sources
The final page provides an overview of various renewable energy sources, explaining how each converts energy from one form to another to generate electricity.
Definition: Renewable energy sources are those that can be replenished naturally and used repeatedly to generate electricity.
Example: The page lists several renewable energy sources, including hydroelectric stations, wind farms, solar cells and panels, tidal and wave power, biomass, and geothermal power.
Highlight: Each energy source is briefly explained in terms of its energy conversion process, such as the conversion of gravitational potential energy to kinetic energy in hydroelectric stations.
Vocabulary: Biomass - Organic matter used as a fuel source for generating electricity.
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
Energy Stores and Equations
This page introduces the fundamental concepts of energy stores and key GCSE Physics equations. It covers various energy stores such as chemical, kinetic, gravitational, elastic, thermal, magnetic, electrostatic, and nuclear. The page also presents essential equations for calculating kinetic energy, efficiency, thermal energy, elastic potential energy, electrical energy, and gravitational potential energy.
Vocabulary: Specific heat capacity - The amount of energy required to raise the temperature of 1 kg of a substance by 1°C .
Example: The page provides an example of energy transfer in a camping stove, where chemical energy from fuel is converted to thermal energy.
Highlight: The efficiency equation is presented as × 100, which is crucial for understanding energy conservation and transfer.
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