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 Universe Evolution for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -estimation for the age of the universe; t ≈ 1/H0 -evolution of the universe after the Big Bang to the present -current ideas; universe is made up of dark energy, dark matter, and a small percentage of ordinary matter. 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 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 Damping (Free & Forced Oscillations) for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -free and forced oscillations -the effects of damping on an oscillatory system -observe forced and damped oscillations for a range of systems -resonance; natural frequency -amplitude-driving frequency graphs for forced oscillators -practical examples of forced oscillations and resonance This lesson includes: -A full presentation with clear visual aids and diagrams. -A worksheet with model answers, perfect to set as homework. -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 Gravitational Field Strength for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -gravitational field strength; g = F/m -gravitational field strength g = -(GM) / r² for a point mass (inverse square law) -gravitational field strength is uniform close to the surface of the Earth and numerically equal to the acceleration of free fall. 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 includes 21 complete lessons that cover Newtonian World & Astrophysics (module 5) for the OCR A Level Physics A course. In total, there are approximately 462 slides/pages Although this resource is designed for the OCR A specification, the content covered is suitable for other exam boards too. Lessons Included: States of Matter & Temperature Specific Heat Capacity & Latent Heat The Gas Laws Ideal Gas Equation Pressure of an Ideal Gas Internal Energy of an Ideal Gas Circular Motion Centripetal Force & Acceleration Simple Harmonic Motion Damping: Free & Forced Oscillations Gravitational Fields Gravitational Field Strength Gravitational Potential & Energy Planetary Motion The Solar System Astronomical Distances Stellar Evolution (Life Cycle of Stars) Stellar Radiation & Luminosity Stellar Spectra The Big Bang Theory Universe Evolution Each lesson includes: -A full presentation including 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. (Note: The following 3 lessons are more content-focused and so do not include example questions in the presentation: The Solar System, Stellar Evolution and Free & Forced Oscillations) 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

21 A Level Physics worksheets containing questions for the topic: Newtonian World & Astrophysics (Module 5) Each worksheet includes a set of model answers In total, there are approximately 134 pages This is tailored for the OCR A specification, however, the versatile nature of this resource makes it suitable for other exam boards too. Worksheets included: States of Matter & Temperature Specific Heat Capacity & Latent Heat The Gas Laws Ideal Gas Equation Pressure of an Ideal Gas Internal Energy of an Ideal Gas Circular Motion Centripetal Force & Acceleration Simple Harmonic Motion Damping: Free & Forced Oscillations Gravitational Fields Gravitational Field Strength Gravitational Potential & Energy Planetary Motion The Solar System Astronomical Distances Stellar Evolution (Life Cycle of Stars) Stellar Radiation & Luminosity Stellar Spectra The Big Bang Theory Universe Evolution 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

This resource is a complete lesson that covers Progressive Waves for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -progressive waves -displacement, amplitude, period, wavelength, and phase difference -longitudinal and transverse waves -graphical representations of transverse and longitudinal waves 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 Reflection & Refraction for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -reflection and refraction of all waves -techniques and procedures used to demonstrate reflection and refraction using a ripple tank 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 Wave-Particle Duality for the OCR A Level Physics A course. However, it is useful for other exam boards too. This lesson teaches the following content: -electron diffraction, including experimental evidence of this effect -diffraction of electrons travelling through a thin slice of polycrystalline graphite by the atoms of graphite and the spacing between the atoms -the de Broglie equation λ = h / p . 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.

A Level Physics worksheet containing questions about the lesson: The Big Bang Theory Model Answers Included This worksheet covers 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 This is tailored for the OCR A specification, however, the versatile nature of this resource makes it suitable for other exam boards too. This resource is designed to help students apply their knowledge to questions. This active revision technique ensures that the worksheet will be very useful for students, and will act as a vital revision tool. 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.

A Level Physics worksheet containing questions about the lesson: Universe Evolution Model Answers Included This worksheet covers the following content: -estimation for the age of the universe; t ≈ 1/H0 -evolution of the universe after the Big Bang to the present -current ideas; universe is made up of dark energy, dark matter, and a small percentage of ordinary matter. This is tailored for the OCR A specification, however, the versatile nature of this resource makes it suitable for other exam boards too. This resource is designed to help students apply their knowledge to questions. This active revision technique ensures that the worksheet will be very useful for students, and will act as a vital revision tool. 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.

A Level Physics worksheet containing questions about the lesson: Stellar Radiation & Luminosity Model Answers Included This worksheet covers the following content: -use of Wien’s displacement law λmax ∝ 1/T to estimate the peak surface temperature (of a star) -luminosity L of a star; Stefan’s law L = 4πr²σT⁴ where σ is the Stefan constant -use of Wien’s displacement law and Stefan’s law to estimate the radius of a star. -Hertzsprung–Russell (HR) diagram as luminosity-temperature plot; main sequence; red giants; super red giants; white dwarfs. This is tailored for the OCR A specification, however, the versatile nature of this resource makes it suitable for other exam boards too. This resource is designed to help students apply their knowledge to questions. This active revision technique ensures that the worksheet will be very useful for students, and will act as a vital revision tool. 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.

A Level Physics worksheet containing questions about the lesson: Stellar Spectra Model Answers Included This worksheet covers 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 is tailored for the OCR A specification, however, the versatile nature of this resource makes it suitable for other exam boards too. This resource is designed to help students apply their knowledge to questions. This active revision technique ensures that the worksheet will be very useful for students, and will act as a vital revision tool. 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.

A Level Physics worksheet containing questions about the lesson: Gravitational Field Strength Model Answers Included This worksheet covers the following content: -gravitational field strength; g = F/m -gravitational field strength g = -(GM) / r² for a point mass (inverse square law) -gravitational field strength is uniform close to the surface of the Earth and numerically equal to the acceleration of free fall. This is tailored for the OCR A specification, however, the versatile nature of this resource makes it suitable for other exam boards too. This resource is designed to help students apply their knowledge to questions. This active revision technique ensures that the worksheet will be very useful for students, and will act as a vital revision tool. 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.