Below you will find our collection of revision notes and video tutorials. For the best revision experience, use both the notes and the videos at the same time to help you follow along. All resources are updated for the latest Edexcel Physics specification.

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## Video Tutorials

This is our hand-picked collection of the best revision videos from around the web. We've carefully chosen the most up to date content which applies to the current Edexcel Physics specification. We'd love to hear your suggestions or display your own content here, just let us know using the contact form.

### 1. Working as a Physicist

### 2. Mechanics

- Scalars and Vectors
- Scalars vs vectors
- Displacement vs distance
- Adding vectors - graphically and mathematically
- Subtracting vectors
- Resolving vectors
- Motion
- Speed, velocity and acceleration
- Distance-time and speed-time graphs
- Displacement-time and velocity-time graphs
- Tricky points on s-t and v-t graphs
- SUVAT equations of motion
- Deriving the SUVAT equations
- Solving SUVAT equations
- Stopping, thinking and braking distances
- Car safety features
- Projectile motion (part 1)
- Projectile motion (part 2)
- Projectile motion (part 3)
- The monkey and hunter example
- Force
- Force, mass, acceleration and newton's second law
- Mass and weight
- Centre of mass and graivty
- Free body diagrams and objects on an inclined plane
- Drag, air resistance and water resistance
- Terminal velocity
- The principle of moments
- Torque of a couple
- Density
- Pressure
- Pressure in liquids and fluids
- Upthrust and archimedes' principle
- Energy

### 3. Electric Circuits

- Intensity of current
- Quantity of charge
- Kirchhoff's first law
- Mean drift velocity
- Conductors, insulators and semi-conductors
- Circuit symbols
- Potential difference vs electromotive force
- Kirchhoff's second law
- The volt and W=VQ
- Energy gained by particles through a potential difference
- Resistance and Ohm's law
- Resistance and temperature
- Resistance and cold temperatures (with liquid nitrogen)
- IV Characteristics of resistors, lamps, diodes and LEDs
- The light dependent resistor
- The NTC thermistor
- Resistivity
- Electrical power
- The kilowatt hour
- Resistors in series
- Resistors in parallel
- How to make circuits that work every time
- Internal resistance and how to measure it
- Potential divider circuits
- How to solve circuit problems

### 4. Materials

- Hooke's law
- Springs in parallel and series
- Elastic potential energy in springs
- Stress, stain and young's modulus
- Stress-stain graphs
- Ductile and brittle materials
- Behaviour of rubber

### 5. Waves & Particle Nature of Light

- Waves
- An introduction to waves
- Wavelength, period, amplitude and phase difference
- The wave equation
- Reflection, refraction, diffraction and polarisation
- Amplitude and intensity
- The transverse nature of EM waves
- Wavelengths and frequencies of EM waves
- EM wave speed and refractive index
- The doppler effect
- Polarisation of waves
- Using microwaves to show polarisation
- Refraction and snell's law
- Total internal reflection and critical angle
- Refrection extra points
- Optical fibres
- Superposition of waves
- Coherence and path difference
- Phase and phase difference
- Two source interference of waves
- Young double slit experiment
- Diffraction gratings
- Velocity of waves on a string
- Standing waves on a string
- Stationary waves on a string
- Stationary waves in an open tube
- Lenses
- An introduction to lenses
- Converging vs diverging
- Power of a lens
- Magnification of a lens
- The lens equation
- Images in a converging lens - part 1
- Images in a converging lens - part 2
- Images in a diverging lens
- Particle Nature of Light