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
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GCSE OCR Physics: P8 Global Challenges
All resources for P8 Global Challenges GCSE OCR Physics Gateway 9-1. Triple and combined (Higher and Foundation) is covered in this material. * Average speeds of walking, running, cycling, cars, trains, wind, sound, and light. * The speed equation * The acceleration equation * Explaining average speed camera * Explaining instantaneous speed camera * Estimating everyday accelerations * Calculating speed from rotation speed and circumference of wheels * Converting from miles per hour to meters per second * 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 * Factors affecting braking distance * Total stopping distances * Calculating area of a velocity-time graph for displacement (distance traveled). * Rearranging equations * MOT testing * 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. * Types of different energy sources * Renewable and non-renewable definitions * Different uses of energy sources - transport, heating, and generating electricity * Advantages and disadvantages of different energy sources * Fossil fuels – oil, coal, and natural gas. * Nuclear fuel – Uranium * Biofuels – wood, biodiesel, and biogas. * The sun - solar (PV) panels and solar heating panels * Tides * Waves * Hydroelectricity * Wind * Geothermal * How use of energy resources have changed over time. (Biofuels, Fossil Fuels, Nuclear, Renewable). * How energy use has increased (increase population and development of technology) * Explain patterns and trends in the use of energy resources. * Fossil fuels are finite and will run out at current consumption levels. * Structure of the National Grid * Step-up and Step-down transformers * How transformers increase the efficiency of the National Grid * Number of turns and potential difference * Current and potential difference in primary and secondary coils * Domestic Electrical Supply being 230 V, AC at 50 Hz. * Direct potential difference and alternating potential difference. * Reasons for insulation on wires. * Potential Difference between different conductors. * Function of the earth conductor. * Double insulation and no earth wire. * Reasons the live wire is dangerous. * Reasons why live to earth is dangerous. * 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 * Structure of the solar system * Nuclear Fusion * Evolution of large stars * Evolution of Sun like stars * Gravitational force and force from nuclear fusion * 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 * All objects emit electromagnetic radiation * Describe how changing temperature changes frequency, wavelength, and intensity of the radiation produced. * Explain why objects change temperature by absorbing and emitting radiation. * Explain why the temperature of the Earth changes due to greenhouse gases in the atmosphere. * S and P waves * Structure of the Earth * Reflection, absorption, and refraction of waves * Sonar to map the ocean floor
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GCSE OCR Physics: P8.1 Physics on the move
All resources for P8.1 Physics on the move GCSE OCR Physics Gateway 9-1. Triple and combined (Higher and Foundation) is covered in this material. * Average speeds of walking, running, cycling, cars, trains, wind, sound, and light. * The speed equation * The acceleration equation * Explaining average speed camera * Explaining instantaneous speed camera * Estimating everyday accelerations * Calculating speed from rotation speed and circumference of wheels * Converting from miles per hour to meters per second * 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 * Factors affecting braking distance * Total stopping distances * Calculating area of a velocity-time graph for displacement (distance traveled). * Rearranging equations * MOT testing * 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.
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