This presentation covers OCR Gateway Physics 9-1 P7.2.5 Efficiency. All presentations come with student activities and worked solutions. Efficiency Ratings Improving efficiency with insulation and lubrication Maximum efficiency Efficiency equation Sankey diagrams

This presentation covers OCR Gateway Physics 9-1 P8.1.2 Reaction Time and Thinking Distance. All presentations come with student activities and worked solutions. Reaction time definition Factors that increase reaction time Simple reaction time experiment Thinking distance Rearranging equations Speed equation (Final velocity)2 – (Initial velocity)2 = 2 x Acceleration x Distance v2 – u2 = 2 a s

OCR AS Physics: LDR is a part of the Module 4: Electrons, Waves, and Photons. PowerPoint with worked examples and homework. Materials and uses of LDRs Creating an experiment to understand LDRs LDRs relationship with light intensity

This presentation covers OCR Gateway Physics 9-1 P4.2.1 Forces, Current and Fleming’s Left Hand Rule. This presentation includes: Interacting Magnetic Field Lines Increasing Magnitude of the force on a current carrying conductor Applying Fleming’s Left Hand Rule

This presentation covers OCR Gateway Physics 9-1 P2.2.4 Newton’s Second Law in Mathematical Form Proportionalities Rearranging Equations Student’s problems with answers Exam style questions with solutions

This presentation covers OCR Gateway Physics 9-1 P2.2.5 Presentation comes with worked examples, student questions and answers. Newton’s first Law Terminal velocity Free body diagrams Plotting data Determining acceleration for a velocity-time graph Determining distance traveled for a velocity-time graph

This presentation covers OCR Gateway Physics 9-1 P2.2.7 Work done equation Rearranging work done equation Questions and answers for work done Power equation and definition Rearranging power equation Different units for work done: J, N m, kg m^2/s^2

These two lesson presentations covers the OCR Gateway Physics 9-1 P2.3.1 material. • Number of forces needed to deform an object • Elastic and Plastic definitions • Hooke’s Law • Rearranging equations • Determining the gradient • Determining the spring constant • Experimental procedure • Exam style questions with solutions

OCR AS Physics A: The Photon Model is a part of the Module 4: Electrons, Waves, and Photons. Full lesson PowerPoint with worked examples and homework with complete worked answers. Energy of a single photon Converting from electron-volts to Joules. Frequency of the electromagnetic spectrum Determining Plank’s constant with LEDs Threshold potential difference difference

OCR AS level Physics: More Vectors is a part of the Module 2: Foundations of Physics Presentation come with worked examples, solutions and homeworks.

OCR AS level Physics: Scalar and Vector Quantities is a part of the Module 2: Foundations of Physics Full lesson PowerPoint with worked examples and homework with complete worked answers. Definition of scalars and vectors Adding quantities with the same units Determining if a quantity is a vector or scalar from an equation Comparing displacement and distance

OCR AS level Physics: Springs and Hooke’s Law is a part of the Module 3: Materials. Presentation come with worked examples, solutions and homeworks.

OCR AS level Physics: The Photoelectric Effect is a part of the Module 4: Electrons, Waves, and Photons. Full lesson PowerPoint with worked examples and homework with complete worked answers. Threshold frequency Producing photoelectrons Kinetic energy of photoelectrons Linking frequency and wavelength The electromagnetic spectrum, frequency and energy.

OCR AS Physics A: Diodes is a part of the Module 4: Electrons, Waves, and Photons. PowerPoint with worked examples and homework. Polarity of diodes Conventional current and diodes Plotting I-V curves for diodes Describing I-V curves for diodes

OCR AS Physics A: Combining Resistors is a part of the Module 4: Electrons, Waves, and Photons. PowerPoint with worked examples and homework. Rules for adding resistors in series and parallel Applying adding resistors in series and parallel

This presentation covers OCR Gateway Physics 9-1 P5.3.3 Light and Colour Includes student activities and full worked answers. Names of colours for the visible spectrum Coloured filters Coloured objects acting as a coloured filters White light and refracting prism Refraction and wavelength Specular reflection Diffuse scattering Scattering - Why the sky is blue and milk is white.

This presentation covers OCR Gateway Physics 9-1 P7.2.1 Electrical Power and Work Done. All presentations come with student activities and worked solutions. Definition of power Converting between W and kW Converting between seconds, minutes, and hours Calculating work done in kWh and J Converting between kWh and J

This presentation cover the OCR Gateway Physics 9-1 P5.2.2 Uses and Dangers of EM radiation. PowerPoint includes student activities with full worked answers. Recall that light is an electromagnetic wave Give examples of some practical uses of electromagnetic waves in the radio, micro-wave, infra-red, visible, ultraviolet, X-ray and gamma-ray regions Describe how ultra-violet waves, X-rays and gamma rays can have hazardous effects, notably on human bodily tissues. Explain that electromagnetic waves transfer energy from source to absorber to include examples from a range of electromagnetic waves Precautions for ultra-violet waves, X-rays and gamma rays

This presentation covers OCR Gateway Physics 9-1 P3.1.1 Electrostatics Subatomic particles and electric charge Transfer of electric charge Attraction and repulsion from electric charge Electric field lines Interaction of electric field lines Van der Graff generator

This presentations covers the OCR Gateway Physics 9-1 P3.2.3 Resistance Combining resistors in series Combining resistors in parallel Modeling resistance, current, and potential difference with a rope. The relationship between potential difference and current The relationship between resistance and current Ohm’s law Rearranging equations Worked examples and student questions Explaining how increasing current increases resistance in a metal conductor and filament lamp.