This presentation covers OCR Gateway Physics 9-1 P7.2.2 Electrical Energy Transfers. All presentations come with student activities and worked solutions. Energy stores Energy transfers Current heats wires Wasted energy in motors and heating elements Specific heat capacity and electrical energy Thermal energy = Mass x Specific Heat Capacity x Change in Temperature Energy = Charge x Potential Difference

OCR AS Chemistry: 15.2 Organohalogen Compounds and the Environment This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Definitions for CFC (Chlorofluorocarbons) and HCFC (Hydachlorofluorocarbons) Creation of ozone Depletion of ozone with CFCs Reaction steps including initiations and propagation

This presentation covers OCR Gateway Physics 9-1 P8.1.4 Forces in Collisions. All presentations come with student activities and worked solutions. Large accelerations produce large forces. Values of g that cause severe injury or death Road Safety Newton’s First Law and seat belts Crumple zones Force = Mass x Acceleration Acceleration = Change in velocity /Time taken Estimating speed, accelerations and forces involved in large accelerations for everyday road transport.

OCR AS Chemistry: 16.2 Synthetic Routes This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Functional Groups - Alkane, Alkene, Haloalkane, Alcohols, Carboxylic Acid, Ketone, Aldehyde, Ester, Amine, Nitrile. One-step synthetic routes with reagents and conditions Two-step synthetic routes with reagents and conditions

OCR AS Chemistry: 17.2 Infrared Spectroscopy This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Absorb infrared radiation increasing vibrations What determines the magnitude of vibration Fingerprint region Identifying peaks

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 PowerPoint presentation with worked examples and student questions covers: • The speed equation and units • Rearranging Equations • The skill of estimating

This PowerPoint presentation with worked examples and student questions covers: Contact and Non-contact forces Forces and accelerations Tug of war example

This PowerPoint presentation with worked examples and student questions covers: Road safety Force and acceleration equations How large forces produce dangerous accelerations

This PowerPoint presentation with worked examples and student questions covers: Balancing forces with vectors Accelerations and resultant forces

This presentation covers OCR Gateway Physics 9-1 P8.3.3 Satellites This PowerPoint is a whole lessons included with student activities and animated answers. Natural Satellites Geostationary Satellites Low Polar Orbit Satellites Speed is constant and velocity is changing in stable orbits. Changing speed and radius Gravitational force, acceleration, and speed. Plotting data and describing relationships

This PowerPoint presentation with worked examples and student questions covers: • The function and sizes of fuses • Wiring a plug • Identifying faults with plugs

This presentation covers OCR Gateway Physics 9-1 P8.3.1 The Big-Bang This PowerPoint is a whole lessons included with student activities and animated answers. Key facts about the Big-Bang model Cosmic Microwave Background (CMB, CMBR) Doppler Red shift of light from stars in galaxies Hubble’s evidence of absorption spectra being red shifted

This PowerPoint presentation with worked examples and student questions covers: • Filled outer shells result in more stable electronic structures. • The electronic configuration ionic compounds • Models of giant ionic structures

This PowerPoint presentation with worked examples and student questions covers: • Definition of Alkali Metals • Properties of Halogens • Trends and anomalies in Group 7 (Density, Melting Point) • Reactivity of Group 7 Halogens • Electron configuration of Group 7 Halogens • Forming salts with alkali metals and halogens

This PowerPoint presentation with worked examples and student questions covers: Flame tests for lithium, sodium, potassium, calcium, and copper. Electron energy levels and emitting radiation. Precipitate tests for iron(II)), iron(III), copper(II), calcium, and zinc.

This PowerPoint presentation with worked examples and student questions covers: • Unsaturated hydrocarbons • Comparing alkanes and alkenes • Mnemonic device for naming alkenes • General formula for alkenes • Completing addition reactions for alkenes

This PowerPoint presentation with worked examples and student questions covers: Jobs in Environmental Chemistry Definition of Instrumental Methods of Analysis Advantages of Instrumental Methods of Analysis Gas Chromatography and Chromatograms Mass Spectrometer and Relative Atomic Mass Identifying a molecule with use of a mass spectrum

This PowerPoint presentation with worked examples and student questions covers: • Definition of hydrocarbons • Fossil fuels being finite and non-renewable • Inter-molecular forces and boiling points • Fractional distillation of crude oil • Uses of crude oil • Cracking equations and reasons to crack hydrocarbons

This presentation covers OCR Gateway Physics 9-1 P5.1.1a WaTypes of wave. Includes student activities and full worked answers. Definition of a wave Mechanical waves Electromagnetic waves Transverse waves Longitudinal waves