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 OCR Physics specification.

## 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 OCR Physics specification. We'd love to hear your suggestions or display your own content here, just let us know using the contact form.

### 1. Practical Skills in Physics

- Accuracy, precision, error and uncertainty
- Absolute uncertainty
- Percentage uncertainty in single measurements
- Percentage uncertainty in multiple measurements
- Percentage uncertainty in gradients
- Percentage difference
- The scientific community
- Variables
- Control variables, fair tests and causation
- Common control variables
- Anomalous results
- Results tables
- Results tables for log values
- Drawing graphs
- Gradients and y-intercepts
- Using micrometers and calipers
- How to read a vernier scale
- Parallax error and how to minimise it
- Zero error
- Light gates and data loggers

### 2. Foundations of Physics

- Physical Quantities and Units
- Quantities vs Units
- Base units
- Derived units
- Unit prefixes
- Estimating physical quantities
- The greek alphabet
- Nature of Quantities

### 3. Forces and Motion

- 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
- Forces in Action
- 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
- Work, Energy and Power
- Work done
- Kinetic energy
- Potential energy
- Conservation of energy
- Conservation of mechanical energy
- Power
- Mechanical power
- Efficiency
- 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
- Momentum

### 4. Electrons, Waves and Photons

- Charge and Current
- Intensity of current
- Quantity of charge
- Kirchhoff's first law
- 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
- 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
- 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
- Standing waves on a string
- Stationary waves on a string
- Stationary waves in an open tube
- Quantum Physics

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