Edexcel GCSE add 9
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| show | familiarity, adrenaline rush,
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| Define acceleration | show 🗑
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| What 2 properties does a vector quantity have? | show 🗑
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| show | the gradient of the graph
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| If the resultant force acting on a body is not zero, what will it do? | show 🗑
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| What are the 2 possible actions that a body could have if the resultant force on it is zero? | show 🗑
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| What is the relationship between force mass and acceleration? | show 🗑
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| What is Newtons third law? | show 🗑
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| What 2 forces act on a falling object? | show 🗑
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| What happens to the air resistance as the the speed of an object falling through it increases? | show 🗑
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| show | When weight downwards = air resistance upwards
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| show | Total distance travelled between seeing reason to stop and stopping. Stopping distance =thinking distance + braking distance
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| What is thinking distance? | show 🗑
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| show | Distance travelled from time foot hot brakes to when the car stops.
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| show | Driver drinking, drugs, mobile phone use. Anything that increases the reaction time
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| show | poor brakes, worn tyres, ice, wet weather, anything that reduces friction between road and tyre
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| show | Fractions, ratios and percentages
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| What is the difference between imposed risk and voluntary risk? | show 🗑
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| Describe and explain measures designed to reduce the rate of change of momentum of fragile objects, eg passengers on a rollercoaster | show 🗑
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| How can we express force in terms of momentum change? | show 🗑
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| Explain how seat belts and air bags work? | show 🗑
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| show | The car crumples and absorbs the energy more slowly in the collision. Increasing the collision time, reducing the collision force (rate of change of momentum is reduced).
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| show | Mass x velocity
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| What is the unit of momentum? | show 🗑
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| show | newtons
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| What is a unit of acceleration | show 🗑
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| show | Final velocity
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| show | initial velocity
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| show | Flight simulators, car design
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Created by:
Susan E Casey
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