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109
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Updated Mar 20, 2026
•
Alice Doe
@liceoe_v50v5w1tsp2bi
Physics might seem complex, but these fundamental concepts actually explain... Show more











Ever wondered why rubbing your hands together makes them warm? That's work done against friction transferring energy to thermal stores. Work happens whenever a force moves an object, and it's always equal to the energy transferred.
When you drop your phone, its gravitational potential energy decreases whilst its kinetic energy increases as it speeds up. You can calculate the change in gravitational potential energy using: ΔEp = mg × Δh (mass × gravitational field strength × height change).
Here's the key principle: energy cannot be created or destroyed - it just moves between different stores. In a closed system, no energy escapes to the surroundings, but in real life, some energy always transfers to heat or sound.
Quick Tip: When objects hit the ground without bouncing, their kinetic energy transfers to the surroundings as heat and sound - that's why dropped objects get slightly warmer!

No machine can be 100% efficient - there's always some energy wasted through friction, air resistance, or electrical resistance. Smart engineers reduce this waste by using lubricants to cut friction or streamlined designs to reduce air resistance.
Efficiency tells us how good a machine is at its job: efficiency = (useful energy output ÷ total energy input) × 100%. Modern electrical appliances are brilliant at this - they can transfer huge amounts of energy at the flick of a switch with very little waste.
Power measures how quickly energy transfers happen. You can calculate kinetic energy using KE = ½ × mass × speed² and elastic potential energy with Ee = ½ × k × extension². As energy dissipates (spreads out), it becomes less useful - that's why perpetual motion machines are impossible.
Remember: Power = energy transferred ÷ time, so a high-power device transfers energy much faster than a low-power one.

Nuclear power isn't science fiction - it's powering homes right now through nuclear fission, where uranium-235 nuclei split into smaller parts, releasing enormous amounts of energy. This happens in a controlled chain reaction where each fission event triggers more fissions.
Nuclear fusion works the opposite way - forcing two small nuclei together to make a larger one. This powers the sun but requires incredibly high temperatures that make it tricky to control on Earth. Both processes release far more energy per kilogram than any fossil fuel.
Radioactive isotopes aren't just dangerous - they're incredibly useful in medicine. Doctors use them for medical imaging and cancer treatment, choosing isotopes based on their half-life and radiation type. Gamma radiation can destroy cancer cells whilst alpha particles are stopped by paper.
Safety Note: Nuclear waste contains radioactive isotopes that emit radiation for thousands of years, which is why proper storage and control rods in reactors are absolutely essential.

Radioactive substances contain unstable nuclei that become stable by emitting radiation - but you can't predict exactly when this'll happen because radioactive decay is random. However, we can measure the half-life - the time it takes for half the nuclei in a sample to decay.
There are three main types of radiation with very different properties. Alpha particles are strongly ionising but only travel about 5cm in air and are stopped by paper. Beta particles have medium ionising power and are stopped by aluminium. Gamma rays are the least ionising but can travel unlimited distances and need thick lead or concrete to stop them.
In alpha decay, the nucleus loses 2 protons and 2 neutrons. In beta decay, a neutron changes into a proton, instantly emitting an electron. Scientists like Rutherford discovered this by firing alpha particles at atoms and noticing some scattered at large angles.
Key Insight: The count rate from a Geiger counter decreases as a radioactive source's activity decreases - both halve every half-life period.

Matter exists in three main states that you see every day. Solids have fixed shapes and volumes with particles in fixed positions. Liquids flow to fit containers but keep the same volume. Gases fill any container completely with particles moving randomly and far apart.
Gas pressure happens because gas molecules constantly bash into surfaces randomly. When you squeeze a gas (decrease volume), the pressure increases because more collisions happen per second in the smaller space. Heat a gas up and the molecules move faster, hitting surfaces harder and more often.
This gives us a useful relationship: pressure × volume = constant (if temperature and mass stay the same). You can see evidence of random molecular motion when smoke particles jiggle unpredictably under a microscope - that's gas molecules bumping into them.
Real-world Example: When you pump up a bike tyre quickly, it gets warm because you're doing work on the gas faster than energy can transfer to the surroundings.

Density tells you how much mass fits in a given volume: ρ = m/v. Objects with density less than 1000 kg/m³ float in water - that's why ice floats! You can measure density using electronic balances for mass and various methods for volume depending on the object's shape.
When substances change state, their mass stays the same because you've got the same number of particles. However, internal energy increases when you heat something - particles move faster (kinetic energy) and when melting or boiling happens, potential energy increases too.
Latent heat is the energy needed to change state without changing temperature. That's why the temperature stays constant on a graph when ice melts - all the energy goes into breaking bonds between particles, not making them move faster.
Equipment Tip: Use Eureka cans or measuring cylinders for irregular solids, vernier callipers for regular shapes, and always use electronic balances for accurate mass measurements.

Electrical power shows how quickly electrical energy transfers: P = V × I. This matters for choosing the right fuse - calculate current using power ÷ voltage to pick a fuse slightly higher than this value. Your electricity meter measures how much energy your home uses.
Direct current (DC) flows in one direction, like from batteries. Alternating current (AC) repeatedly reverses direction - that's what comes from wall sockets. UK mains supply is 230V AC at 50Hz frequency, meaning it changes direction 100 times per second.
Mains cables contain three insulated copper wires: live (brown), neutral (blue), and earth . The earth wire connects to metal cases for safety. Plugs use plastic because it's an excellent electrical insulator.
Safety First: The live wire alternates between +325V and -325V whilst the neutral wire stays at 0V - never touch exposed wires!

Series circuits have components connected in a single loop. Current stays the same throughout, but potential difference splits between components. Adding more resistors increases total resistance because you're making it harder for current to flow.
Parallel circuits have components on separate branches. Current splits between branches but potential difference across each component stays the same. Adding resistors in parallel actually decreases total resistance because current has more paths to follow.
Light-dependent resistors (LDRs) have lower resistance in bright light, whilst thermistors have lower resistance when hot. These make brilliant sensors for automatic lights or temperature controls.
Circuit Tip: Use ammeters in series to measure current and voltmeters in parallel to measure potential difference across components.

Ohm's Law is fundamental: V = IR . This works perfectly for resistors at constant temperature, giving straight-line graphs. However, filament lamps get hotter as current increases, so their resistance increases too.
When objects are rubbed together, electrons transfer between them. The material losing electrons becomes positively charged, whilst the one gaining electrons becomes negative. Like charges repel, unlike charges attract - and this force works at a distance.
Electric current is the flow of charge: I = Q/t . Every component has its own symbol in circuit diagrams, making it easy to understand how circuits connect together.
Remember: Reversing the potential difference across a resistor reverses the current - but the resistance stays the same.

Renewable energy resources like wind, solar, and hydroelectric never run out and don't produce harmful waste. Fossil fuels (oil, coal, gas) will eventually run out and produce greenhouse gases that contribute to global warming.
Nuclear power releases massive amounts of energy from tiny amounts of fuel - much more than any fossil fuel per kilogram. However, nuclear power stations are expensive to build and produce radioactive waste that lasts thousands of years.
Different energy sources suit different situations. Wind power depends on wind speed cubed (v³), so small increases in wind speed give huge increases in power. Solar panels work brilliantly in sunny locations, whilst geothermal energy uses heat from radioactive decay deep underground.
Future Focus: Gas-fired power stations can quickly meet changing energy demands, whilst pumped storage systems store excess energy by pumping water uphill when demand is low.
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.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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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
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 Knowunity AI. 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 Knowunity AI. 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
Alice Doe
@liceoe_v50v5w1tsp2bi
Physics might seem complex, but these fundamental concepts actually explain everything from why your phone battery drains to how power stations work. Understanding energy, electricity, and radioactivity will help you make sense of the technology around you every day.

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Join milions of students
Ever wondered why rubbing your hands together makes them warm? That's work done against friction transferring energy to thermal stores. Work happens whenever a force moves an object, and it's always equal to the energy transferred.
When you drop your phone, its gravitational potential energy decreases whilst its kinetic energy increases as it speeds up. You can calculate the change in gravitational potential energy using: ΔEp = mg × Δh (mass × gravitational field strength × height change).
Here's the key principle: energy cannot be created or destroyed - it just moves between different stores. In a closed system, no energy escapes to the surroundings, but in real life, some energy always transfers to heat or sound.
Quick Tip: When objects hit the ground without bouncing, their kinetic energy transfers to the surroundings as heat and sound - that's why dropped objects get slightly warmer!

Access to all documents
Improve your grades
Join milions of students
No machine can be 100% efficient - there's always some energy wasted through friction, air resistance, or electrical resistance. Smart engineers reduce this waste by using lubricants to cut friction or streamlined designs to reduce air resistance.
Efficiency tells us how good a machine is at its job: efficiency = (useful energy output ÷ total energy input) × 100%. Modern electrical appliances are brilliant at this - they can transfer huge amounts of energy at the flick of a switch with very little waste.
Power measures how quickly energy transfers happen. You can calculate kinetic energy using KE = ½ × mass × speed² and elastic potential energy with Ee = ½ × k × extension². As energy dissipates (spreads out), it becomes less useful - that's why perpetual motion machines are impossible.
Remember: Power = energy transferred ÷ time, so a high-power device transfers energy much faster than a low-power one.

Access to all documents
Improve your grades
Join milions of students
Nuclear power isn't science fiction - it's powering homes right now through nuclear fission, where uranium-235 nuclei split into smaller parts, releasing enormous amounts of energy. This happens in a controlled chain reaction where each fission event triggers more fissions.
Nuclear fusion works the opposite way - forcing two small nuclei together to make a larger one. This powers the sun but requires incredibly high temperatures that make it tricky to control on Earth. Both processes release far more energy per kilogram than any fossil fuel.
Radioactive isotopes aren't just dangerous - they're incredibly useful in medicine. Doctors use them for medical imaging and cancer treatment, choosing isotopes based on their half-life and radiation type. Gamma radiation can destroy cancer cells whilst alpha particles are stopped by paper.
Safety Note: Nuclear waste contains radioactive isotopes that emit radiation for thousands of years, which is why proper storage and control rods in reactors are absolutely essential.

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Improve your grades
Join milions of students
Radioactive substances contain unstable nuclei that become stable by emitting radiation - but you can't predict exactly when this'll happen because radioactive decay is random. However, we can measure the half-life - the time it takes for half the nuclei in a sample to decay.
There are three main types of radiation with very different properties. Alpha particles are strongly ionising but only travel about 5cm in air and are stopped by paper. Beta particles have medium ionising power and are stopped by aluminium. Gamma rays are the least ionising but can travel unlimited distances and need thick lead or concrete to stop them.
In alpha decay, the nucleus loses 2 protons and 2 neutrons. In beta decay, a neutron changes into a proton, instantly emitting an electron. Scientists like Rutherford discovered this by firing alpha particles at atoms and noticing some scattered at large angles.
Key Insight: The count rate from a Geiger counter decreases as a radioactive source's activity decreases - both halve every half-life period.

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Join milions of students
Matter exists in three main states that you see every day. Solids have fixed shapes and volumes with particles in fixed positions. Liquids flow to fit containers but keep the same volume. Gases fill any container completely with particles moving randomly and far apart.
Gas pressure happens because gas molecules constantly bash into surfaces randomly. When you squeeze a gas (decrease volume), the pressure increases because more collisions happen per second in the smaller space. Heat a gas up and the molecules move faster, hitting surfaces harder and more often.
This gives us a useful relationship: pressure × volume = constant (if temperature and mass stay the same). You can see evidence of random molecular motion when smoke particles jiggle unpredictably under a microscope - that's gas molecules bumping into them.
Real-world Example: When you pump up a bike tyre quickly, it gets warm because you're doing work on the gas faster than energy can transfer to the surroundings.

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Improve your grades
Join milions of students
Density tells you how much mass fits in a given volume: ρ = m/v. Objects with density less than 1000 kg/m³ float in water - that's why ice floats! You can measure density using electronic balances for mass and various methods for volume depending on the object's shape.
When substances change state, their mass stays the same because you've got the same number of particles. However, internal energy increases when you heat something - particles move faster (kinetic energy) and when melting or boiling happens, potential energy increases too.
Latent heat is the energy needed to change state without changing temperature. That's why the temperature stays constant on a graph when ice melts - all the energy goes into breaking bonds between particles, not making them move faster.
Equipment Tip: Use Eureka cans or measuring cylinders for irregular solids, vernier callipers for regular shapes, and always use electronic balances for accurate mass measurements.

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Join milions of students
Electrical power shows how quickly electrical energy transfers: P = V × I. This matters for choosing the right fuse - calculate current using power ÷ voltage to pick a fuse slightly higher than this value. Your electricity meter measures how much energy your home uses.
Direct current (DC) flows in one direction, like from batteries. Alternating current (AC) repeatedly reverses direction - that's what comes from wall sockets. UK mains supply is 230V AC at 50Hz frequency, meaning it changes direction 100 times per second.
Mains cables contain three insulated copper wires: live (brown), neutral (blue), and earth . The earth wire connects to metal cases for safety. Plugs use plastic because it's an excellent electrical insulator.
Safety First: The live wire alternates between +325V and -325V whilst the neutral wire stays at 0V - never touch exposed wires!

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Improve your grades
Join milions of students
Series circuits have components connected in a single loop. Current stays the same throughout, but potential difference splits between components. Adding more resistors increases total resistance because you're making it harder for current to flow.
Parallel circuits have components on separate branches. Current splits between branches but potential difference across each component stays the same. Adding resistors in parallel actually decreases total resistance because current has more paths to follow.
Light-dependent resistors (LDRs) have lower resistance in bright light, whilst thermistors have lower resistance when hot. These make brilliant sensors for automatic lights or temperature controls.
Circuit Tip: Use ammeters in series to measure current and voltmeters in parallel to measure potential difference across components.

Access to all documents
Improve your grades
Join milions of students
Ohm's Law is fundamental: V = IR . This works perfectly for resistors at constant temperature, giving straight-line graphs. However, filament lamps get hotter as current increases, so their resistance increases too.
When objects are rubbed together, electrons transfer between them. The material losing electrons becomes positively charged, whilst the one gaining electrons becomes negative. Like charges repel, unlike charges attract - and this force works at a distance.
Electric current is the flow of charge: I = Q/t . Every component has its own symbol in circuit diagrams, making it easy to understand how circuits connect together.
Remember: Reversing the potential difference across a resistor reverses the current - but the resistance stays the same.

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Improve your grades
Join milions of students
Renewable energy resources like wind, solar, and hydroelectric never run out and don't produce harmful waste. Fossil fuels (oil, coal, gas) will eventually run out and produce greenhouse gases that contribute to global warming.
Nuclear power releases massive amounts of energy from tiny amounts of fuel - much more than any fossil fuel per kilogram. However, nuclear power stations are expensive to build and produce radioactive waste that lasts thousands of years.
Different energy sources suit different situations. Wind power depends on wind speed cubed (v³), so small increases in wind speed give huge increases in power. Solar panels work brilliantly in sunny locations, whilst geothermal energy uses heat from radioactive decay deep underground.
Future Focus: Gas-fired power stations can quickly meet changing energy demands, whilst pumped storage systems store excess energy by pumping water uphill when demand is low.
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.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
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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
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 Knowunity AI. 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 Knowunity AI. 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