Remembering GCSE physics equations made easy

Mr Sensible

13 May 201904:43

EducationalLearning

32 Likes 10 Comments

TLDRIn this creative and humorous video, the narrator employs mnemonic devices and quirky imagery to help students memorize essential GCSE physics equations with less than two weeks before their exams. From 'Fat Mate Alex' for force equals mass times acceleration (F=MA) to 'Gosh My Hairy Granny' for gravitational potential energy (GPE=mgh), each equation is paired with a memorable catchphrase and scenario. The video also covers power (P=VI), charge (Q=It), work (W=FD), momentum (p=mv), and density (D=M/V), using characters like 'Naked Gravy Wrestler Tom' and 'Mum Murders Vultures' to make learning physics both entertaining and unforgettable.

Takeaways

📚 The video aims to help students memorize important GCSE physics equations with less than two weeks before their exam.
🍰 The mnemonic 'Fat mate Alex' is used to remember that Force (F) equals Mass (M) times Acceleration (A).
🚽 The phrase 'big steaming poo' in the freezer is associated with Power (P) equals Voltage (V) times Current (I), with the unit being a watt.
🔴 The color red and the name 'Finn' are used to recall Voltage (V) equals Current (I) times Resistance (R), with resistance measured in ohms.
🍫 The 'Quality Street' tins are a memory aid for Charge (Q) equals Current (I) times Time (T), with the unit of charge being the Coulomb.
👵 The image of a 'hairy granny' stands for Gravitational Potential Energy (GPE) equals Mass (M) times Height (H) times Gravity (g).
🐾 The 'fat dog' walking is a reminder that Work Done (W) equals Force (F) times Distance (D), with work being energy transferred and measured in joules.
🥚 The 'naked gravy wrestler' Tom with bouncing eggs illustrates Power equals Energy over Time, with power also referred to as joules per second.
🌿 The 'weedkiller' is a pun for remembering Weight (W) equals Mass (m) times Gravity (g), with gravity being acceleration due to gravity.
🏆 The 'mum murders vultures' phrase is used to remember Momentum (M) equals Mass (m) times Velocity (V), with units being kilogram meters per second.
🧀 The dad putting 'Marmite on vultures' is a memory trick for Density (D) equals Mass (M) divided by Volume (V), with units depending on mass and volume units given.

Q & A

What is the main purpose of the video?
-The main purpose of the video is to help students memorize ten useful GCSE physics equations using mnemonic devices and humorous images, just before their exams.
What mnemonic does the video use for the equation relating force, mass, and acceleration?
-The video uses 'Fat mate Alex' to remember that F (force) equals M (mass) times A (acceleration), or F = MA.
What is the equation for power and how does the video help remember it?
-The equation for power is P = VI, where P is power, V is voltage, and I is current. The video uses the phrase 'big steaming poo in the freezer' to remember this equation.
What mnemonic is used for the equation involving voltage, current, and resistance?
-The video uses 'VIN is in red' to help remember that V (voltage) equals I (current) times R (resistance), or V = IR.
How does the video help remember the equation for charge?
-The video uses 'Quality Street in tins' to remember that Q (charge) equals I (current) times T (time), or Q = IT.
What is the equation for gravitational potential energy and how does the video help to remember it?
-The equation for gravitational potential energy is G = mgh, where G is the gravitational potential energy, m is mass, h is height, and g is gravity. The video uses 'Gosh my hairy granny' to help remember this equation.
What mnemonic is used for the equation relating work done, force, and distance?
-The video uses 'fat duck' to remember that W (work done) equals F (force) times D (distance), or W = F * D.
How does the video help remember the equation for power in terms of energy and time?
-The video uses the scenario of 'people putting eggs on top of Tom' to remember that power equals energy over time, or P = E/t.
What is the equation for weight and how does the video help to remember it?
-The equation for weight is W = mg, where W is weight, m is mass, and g is gravity. The video uses 'weed my garden' to help remember this equation.
What mnemonic is used for the equation involving momentum, mass, and velocity?
-The video uses 'M equals M times V' to remember that momentum (M) equals mass (M) times velocity (V), or M = m * V.
How does the video help remember the equation for density?
-The video uses 'my dad puts Marmite on top of vultures' to remember that density (D) equals mass (M) over volume (V), or D = M/V.

Outlines

00:00

📚 Preparing for GCSE Physics Exam

The video is aimed at students who have their GCSE physics exam in less than two weeks and still need to learn their equations. It promises to teach ten of the most useful GCSE physics equations using catchphrases and silly images to make learning fun and memorable.

💪 Force Equals Mass Times Acceleration

The presenter introduces 'fat mate Alex' to remember the equation F = MA (force equals mass times acceleration). They highlight the importance of knowing the units associated with the equation.

🔌 Power Equals Voltage Times Current

To remember P = VI (power equals voltage times current), the presenter talks about freezing a big steaming poo, jokingly suggesting it tastes better than their wife's cooking and emphasizing that power is measured in watts.

🔋 Voltage Equals Current Times Resistance

The equation V = IR (voltage equals current times resistance) is remembered through 'VIN is in red'. The presenter points out that current is denoted by 'I' and resistance is measured in ohms.

🔋 Charge Equals Current Times Time

Using 'Quality Street in tins' to remember Q = IT (charge equals current times time), the presenter notes that charge is measured in coulombs.

🌍 Gravitational Potential Energy

The phrase 'my hairy granny' helps remember the equation GPE = mgh (gravitational potential energy equals mass times height and gravity). The presenter humorously comments on their 'hairy granny' needing a shave.

💪 Work Done Equals Force Times Distance

The presenter uses the image of walking like a 'fat dog' after a heavy meal to recall W = Fd (work done equals force times distance). They explain that work done is energy transferred and is measured in joules.

⏱️ Power Equals Energy Over Time

The image of eggs bouncing off 'Tom's' head helps recall P = E/t (power equals energy over time). The presenter reiterates that power is measured in watts, also expressed as joules per second.

🔢 Weight Equals Mass Times Gravity

Using 'weedkiller' to remember W = mg (weight equals mass times gravity), the presenter explains that gravity is measured in meters per second squared.

🏃 Momentum Equals Mass Times Velocity

The phrase 'my mum murders vultures' helps recall M = mv (momentum equals mass times velocity). The presenter points out that momentum is measured in kilogram meters per second.

⚖️ Density Equals Mass Divided by Volume

The presenter uses 'Marmite on top of vultures' to remember ρ = m/v (density equals mass divided by volume). They explain that the units of density depend on the units of mass and volume provided.

📢 Call to Share the Video

In the closing, the presenter encourages viewers to share the video with anyone preparing for GCSE exams, hoping the content will help them. They emphasize the importance of spreading the helpful material.

Mindmap

Keywords

💡Force

Force is defined as any interaction that, when unopposed, will change the motion of an object. In the video, it's remembered through the phrase 'fat mate Alex' (F = MA), where force equals mass times acceleration. This concept is essential for understanding basic physics principles and equations.

💡Power

Power is the rate at which work is done or energy is transferred over time. In the video, it is associated with the catchphrase about freezing poo (P = VI) and another about eggs on Tom's head (P = E/T), representing power as voltage times current and energy over time respectively. Power is measured in watts.

💡Voltage

Voltage, or electric potential difference, is the measure of potential energy between two points in an electric field. It is linked to the equation V = IR (voltage equals current times resistance) in the video through the image of Vin Diesel in red. Understanding voltage is crucial for analyzing electrical circuits.

💡Current

Current is the flow of electric charge in a circuit, measured in amperes. It appears in multiple equations in the video, including P = VI and V = IR. Remembering current is key to solving many physics problems related to electricity.

💡Resistance

Resistance is the opposition to the flow of current in an electrical circuit, measured in ohms. It is part of Ohm's law (V = IR), helping to understand how different materials and components affect current flow in circuits.

💡Charge

Charge is a property of matter that causes it to experience a force when placed in an electromagnetic field, measured in coulombs. The equation Q = I × T (charge equals current times time) is remembered through the catchphrase 'Quality Street in tins.' This concept is fundamental for understanding electrostatics and circuit behavior.

💡Work Done

Work done is the energy transferred when a force moves an object over a distance, measured in joules. The video uses 'fat duck' to recall W = F × D, illustrating that work done equals force times distance. It's a core concept for linking force and energy.

💡Gravitational Potential Energy

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, calculated as GPE = mgh (mass times height times gravitational field strength). The video uses 'hairy granny' to remember this. It helps explain how objects store energy when lifted.

💡Momentum

Momentum is the product of an object's mass and velocity, represented as p = mv. In the video, 'mum murders vultures' helps remember this equation. Momentum is crucial for understanding motion and collisions in physics.

💡Density

Density is mass per unit volume, often measured in kilograms per cubic meter (kg/m³). The equation ρ = m/V (density equals mass divided by volume) is remembered through 'dad puts Marmite on vultures.' Density helps describe how compact or spread out a material's mass is.

Highlights

Introduction to a method of memorizing GCSE physics equations using catchphrases and images.

Memory trick using 'Fat mate Alex' to remember F=MA (Force equals mass times acceleration).

Using humor to remember units for equations, with a joke about a frozen 'poop' to represent P=VI (Power equals voltage times current).

Mnemonic for V=IR (Voltage equals current times resistance) involving a character named Finn in red.

Associating 'Quality Street in tins' with Q=IT (Charge equals current times time).

Using a 'hairy granny' image to remember gravitational potential energy G=MAhG (G equals mass times height and gravity).

A 'fat duck' analogy to memorize W=FD (Work done equals force times distance).

Introducing Tom, a world champion naked gravy wrestler, to help remember power as energy over time.

Using 'weed killer' as a mnemonic for W=mg (Weight equals mass times gravity).

A 'murdering vulture' scenario to remember M=mv (Momentum equals mass times velocity).

The 'Marmite on a vulture' analogy for D=M/V (Density equals mass divided by volume).

Explanation of units for density and how they depend on the units given for mass and volume.

A call to action to share the video to help students preparing for GCSE exams.

The presenter's personal touch using family and friends as part of the memory techniques.

A reminder of the importance of units in physics equations and how they are represented.

A humorous and engaging approach to learning and memorizing physics equations.

Transcripts

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