This resource is a complete lesson that covers Electric Potential & Field Comparisons (Electric & Gravitational) for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -electric potential at a point as the work done in bringing unit positive charge from infinity to the point; electric potential is zero at infinity -electric potential V = Q/4πε0r at a distance r from a point charge; changes in electric potential -capacitance C = 4πε0R for an isolated sphere including derivation from equation for electric potential and Q = VC -force–distance graph for a point or spherical charge; work done is area under graph -electric potential energy = Vq = Qq/4πε0r a distance r from a point charge Q. -similarities and differences between the gravitational field of a point mass and the electric field of a point charge 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 Capacitors Calculations (Charging + Discharging) for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -time constant of a capacitor–resistor circuit; τ = CR -equations of the form x = x₀e^-t/CR and x = x₀(1 - e^-t/CR) for capacitor–resistor circuits -exponential decay graph; constant-ratio property of such a graph. 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 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 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 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 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 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 EMF & Internal Resistance for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -electromotive force (e.m.f.) of a source such as a cell or a power supply -distinction between e.m.f. and p.d. in terms of energy transfer -energy transferred; W = εQ -internal resistance -terminal p.d. and lost volts -the equations E = I(R + r) and E = V + Ir -analysis of circuits with more than one source of e.m.f. -techniques and procedures used to determine the internal resistance of a chemical cell or other source of e.m.f. 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 Power & Electrical Energy for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -the equations P=VI, P=I2R and P=V2 / R -energy transferred; W = VIt -the kilowatt-hour (kW h) as a unit of energy; calculating the cost of energy. This lesson includes: -A full presentation including 6 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.

This resource is a complete lesson that covers Constant Acceleration for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -displacement, instantaneous speed, average speed, velocity and acceleration. -the equations of motion for constant acceleration in a straight line, including motion of bodies falling in a uniform gravitational field without air resistance: v = u + at s = 1/2 (u + v) t s = ut + 1/2 at2 v2 = u2 + 2as -acceleration g of free fall. -techniques and procedures used to determine the acceleration of free fall using trapdoor and electromagnet arrangement. -independence of the vertical and horizontal motion of a projectile. -two-dimensional motion of a projectile with constant velocity in one direction and constant acceleration in a perpendicular direction. 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 Nuclear Fission & Fusion for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -induced nuclear fission -nuclear fusion; fusion reactions and why very high temperatures are required -balancing nuclear transformation equations. -energy released (or absorbed) in simple nuclear reactions -binding energy per nucleon against nucleon number curve; calculating energy changes in reactions 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 X-Ray Imaging for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -basic structure of an X-ray tube; components – heater (cathode), anode, target metal and high voltage supply -production of X-ray photons from an X-ray tube -X-ray attenuation mechanisms; simple scatter, photoelectric effect, Compton effect and pair production -attenuation of X-rays; I = I₀e^µx where µ is the attenuation (absorption) coefficient -X-ray imaging with contrast media; barium and iodine -computerised axial tomography (CAT) scanning; components – rotating X-tube producing a thin fan-shaped X-ray beam, ring of detectors, computer software and display -advantages of a CAT scan over an X-ray image. 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 Medical Uses of Ultrasound for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -ultrasound; longitudinal wave with frequency greater than 20 kHz -acoustic impedance of a medium; Z =  ρc -reflection of ultrasound at a boundary; Ir / I₀ =(Z₂ - Z₁)² / (Z₂ + Z₁)² -piezoelectric effect; ultrasound transducer as a device that emits and receives ultrasound -advantages and disadvantages of ultrasound in medical scans -ultrasound A-scan and B-scan -impedance (acoustic) matching; special gel used in ultrasound scanning -Doppler effect in ultrasound; speed of blood in the patient Δf/f = 2vcosθ/c for determining the speed v of blood. 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.