This resource is a complete lesson that covers Diffraction Gratings for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -techniques and procedures used to determine the wavelength of light using a diffraction grating -interference with a diffraction grating -mathematical analysis of interference involving diffraction gratings: θ ≈ x/D and d sinθ = n λ -the diffraction of white light This lesson includes: -A full presentation including 2 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Frequency, Speed & Intensity for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -the equation f = 1/T -the wave equation v = fλ -techniques and procedures used to use an oscilloscope to determine frequency -intensity of a progressive wave; I = P/A -intensity ∝ (amplitude)^2. This lesson includes: -A full presentation including 5 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Two-Source Interference for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -path difference -constructive and destructive interference in terms of path difference -two-source interference with sound and microwaves -techniques and procedures used for superposition experiments using sound, light and microwaves This lesson includes: -A full presentation including 2 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers The Potential Divider for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -potential divider circuit -potential divider equations; V1/V2 = R1/R2 and Vout = R2 / (R1 + R2) x Vin -potential divider circuits with variable components e.g. LDR and thermistor -Potentiometers -techniques and procedures used to investigate potential divider circuits which may include a sensor such as a thermistor This lesson includes: -A full presentation including 2 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Resistance & Resistivity for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -resistance; R = V / I ; the unit ohm -resistivity of a material; the equation R = pL / A -the variation of resistivity of metals and semiconductors with temperature -techniques and procedures used to determine the resistivity of a metal. This lesson includes: -A full presentation including 3 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Hooke’s Law for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -tensile and compressive deformation; extension and compression. -Hooke’s law. -force constant k of a spring or wire; F = kx. -force–extension (or compression) graphs for springs and wires. -techniques and procedures used to investigate force–extension characteristics. This lesson includes: -A full presentation including 2 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Stress-Strain Graphs for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -stress–strain graphs for typical ductile, brittle and polymeric materials This lesson includes: -A full presentation including an example question with a worked solution. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers The Young Modulus for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -stress, strain and ultimate tensile strength -Young modulus = tensile stress / tensile strain -techniques and procedures used to determine the Young modulus for a metal This lesson includes: -A full presentation including 2 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Impulse & Vehicle Safety for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -impulse of a force; impulse = change in momentum -impulse is equal to the area under a force–time graph. -vehicle safety design -risks of vehicle safety features This lesson includes: -A full presentation including 2 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Displacement & Velocity-Time Graphs for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -graphical representations of displacement, speed, velocity and acceleration -Displacement–time graphs; velocity is gradient -Velocity–time graphs; acceleration is gradient; displacement is area under graph. This lesson includes: -A full presentation including 3 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Investigating Motion & Stopping Distances for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -techniques and procedures used to investigate the motion and collisions of objects. (including trolleys, light gates, data-loggers and video techniques) -reaction time and thinking distance; braking distance and stopping distance for a vehicle. This lesson includes: -A full presentation including an example question with a worked solution. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers States of Matter & Temperature for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -thermal equilibrium -absolute scale of temperature (i.e. the thermodynamic scale) that does not depend on property of any particular substance -temperature measurements both in degrees Celsius (°C) and in kelvin (K) -T(K) ≈ θ(°C)+273 -solids, liquids and gases in terms of the spacing, ordering and motion of atoms or molecules -simple kinetic model for solids, liquids and gases -Brownian motion in terms of the kinetic model of matter and a simple demonstration using smoke particles suspended in air -internal energy as the sum of the random distribution of kinetic and potential energies associated with the molecules of a system -absolute zero (0 K) as the lowest limit for temperature; the temperature at which a substance has minimum internal energy -increase in the internal energy of a body as its temperature rises -changes in the internal energy of a substance during change of phase; constant temperature during change of phase. This lesson includes: -A full presentation including 4 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Stellar Spectra for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -energy levels of electrons in isolated gas atoms -the idea that energy levels have negative values -emission spectral lines from hot gases in terms of emission of photons and transition of electrons between discrete energy levels -the equations hf = ΔE and hc/λ = ΔE -continuous spectrum, emission line spectrum and absorption line spectrum -transmission diffraction grating used to determine the wavelength of light -the condition for maxima: dsinθ = nλ, where d is the grating spacing -different atoms have different spectral lines which can be used to identify elements within stars This lesson includes: -A full presentation including 2 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers the Big Bang Theory for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -the cosmological principle; universe is homogeneous, isotropic and the laws of physics are universal -Doppler effect; Doppler shift of electromagnetic radiation -Doppler equation: Δλ/λ ≈ Δf/f ≈ v/c for a source of electromagnetic radiation moving relative to an observer -Hubble’s law; v ≈ H0 d for receding galaxies, where H0 is the Hubble constant -model of an expanding universe supported by galactic red shift -Hubble constant H0 in both km s–1 Mpc–1 and s–1 units -the Big Bang theory -experimental evidence for the Big Bang theory from microwave background radiation at a temperature of 2.7 K -the idea that the Big Bang gave rise to the expansion of space-time This lesson includes: -A full presentation including 2 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Thermal Properties of Materials (Specific Heat Capacity & Specific Latent Heat) for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -specific heat capacity of a substance; the equation E = mcΔT -an electrical experiment to determine the specific heat capacity of a metal or a liquid -specific latent heat of fusion and specific latent heat of vaporisation, E = mL -an electrical experiment to determine the specific latent heat of fusion and vaporisation This lesson includes: -A full presentation including 3 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers The Photoelectric Effect for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -photoelectric effect, including a simple experiment to demonstrate this effect -demonstration of the photoelectric effect using, e.g. gold-leaf electroscope and zinc plate -a one-to-one interaction between a photon and a surface electron -Einstein’s photoelectric equation hf = 𝜙 + KEmax -work function; threshold frequency -the idea that the maximum kinetic energy of the photoelectrons is independent of the intensity of the incident radiation -the idea that rate of emission of photoelectrons above the threshold frequency is directly proportional to the intensity of the incident radiation. This lesson includes: -A full presentation including 3 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Electromagnetic Waves & Polarisation for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -the properties of electromagnetic waves. -the electromagnetic spectrum -orders of magnitude of wavelengths of the principal radiations from radio waves to gamma rays -plane polarised waves -the polarisation of electromagnetic waves (e.g. light and microwaves) -techniques and procedures used to observe polarising effects using microwaves and light (polarising filters for light and metal grilles for microwaves in demonstrating polarisation) This lesson includes: -A full presentation including 2 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Stationary Waves for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -stationary (standing) waves using microwaves, stretched strings and air columns -graphical representations of a stationary wave -similarities and the differences between stationary and progressive waves -nodes and antinodes -stationary wave patterns for a stretched string and air columns in closed and open tubes -techniques and procedures used to determine the speed of sound in air by formation of stationary waves in a resonance tube -the idea that the separation between adjacent nodes (or antinodes) is equal to λ/2, where λ is the wavelength of the progressive wave -fundamental mode of vibration (1st harmonic); harmonics. This lesson includes: -A full presentation including 3 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Refractive Index & Total Internal Reflection for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -refraction of light -refractive index; n = c/v -n1 sin θ1 = n2 sin θ2 at a boundary, where θ is the angle to the normal -techniques and procedures used to investigate refraction and total internal reflection of light using ray boxes, including transparent rectangular and semi-circular blocks -critical angle; sin C = 1/n -total internal reflection for light. This lesson includes: -A full presentation including 4 example questions with worked solutions. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.

This resource is a complete lesson that covers Conductors & I-V Characteristics for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -Ohm’s Law & ohmic conductors -I–V characteristics of resistor, filament lamp, thermistor, diode and light-emitting diode (LED) -techniques and procedures to investigate the I-V characteristics of components. -negative temperature coefficient (NTC) thermistor; variation of resistance with temperature. -light-dependent resistor (LDR); variation of resistance with light intensity. -investigating the resistance of NTC thermistors -investigating the resistance of LDRs This lesson includes: -A full presentation including an example question with a worked solution. -A worksheet with model answers, perfect to set as homework. -Clear visual aids and diagrams to simplify complex concepts. -Editable PowerPoint and Word document for easy customisation. Click on the links below to check out our FREE A Level Physics resources: Mass, Weight & Force Basics Lesson Net Forces & Equilibrium Lesson Moments & Torques Lesson Drag & Terminal Velocity Lesson Density, Pressure & Upthrust Lesson We really appreciate feedback on our resources so if you kindly leave a review down below, you will be able to claim any resource (up to the value of this resource) from our shop for FREE. Just email resourcify321@gmail.com with your username and your chosen resource. Your chosen resource will be sent to you within 24 hours.